Johnson Controls DX-9100 User Manual

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FANs 636.4, 1628.4

Configuration Guides Section

Configuration Guide

Issue Date 0900

DX-9100 Configuration Guide

DX-9100 Extended Digital Plant Controller Page 5

• Introduction *5

• Hardware Configuration 10

Software Configuration 11

• DX-9100 Software Elements 11

• Configuration Tools 11

• Configuring the Controller 14

• DX-9100 Controller Selection 15

• DX-9100 Global Data 15

• Configuration Number (Version 1.1 or Later) 17

• Password Feature (Versions 1.4, 2.3, 3.3, or Later) 17

• Analog Input Configuration 18

• Digital Input Configuration 25

• Analog Output Configuration 26

• Digital Output Configuration 32

• DO: Output Type 34

• Constants and Result Status 40

• Extension Module Configuration *42

• Network Analog Input Configuration (Version 3 Only) *51

• Network Digital Input Configuration (Version 3 Only) 52

• Network Analog Output Configuration (Version 3 Only) 53

• Network Digital Output Configuration (Version 3 Only) 55

• Programmable Function Module Configuration 57

• Control Algorithm Theory 63

* Indicates those sections where changes have occurred since the last printing.

Code No. LIT-6364030 www.johnsoncontrols.com

• Algorithm 01 - PID Control Module

Page

• Algorithm 02 - On/Off Control Module 78

• Algorithm 03 - Heating/Cooling PID Control Module (Dual PID) 86

• Algorithm 04 - Heating/Cooling On/Off Control Module (Dual On/Off) 98

• Numerical Calculation and Other Function Module Configurations 107

• Algorithm 11 - Average 107

• Algorithm 12 - Minimum Select 109

• Algorithm 13 - Maximum Select 111

• Algorithm 14 - Psychrometric Calculation °C 113

• Algorithm 15 - Psychrometric Calculation °F 116

• Algorithm 16 - Line Segment 119

• Algorithm 17 - Input Selector 121

• Algorithm 18 - Calculator 123

• Algorithm 19 - Timer Functions 125

• Algorithm 20 - Totalization 129

• Algorithm 21 - Comparator 133

• Algorithm 22 - Sequencer 136

• Algorithm 23 - Four Channel Line Segment (Version 1.1 or Later) 152

• Algorithm 24 - Eight Channel Calculator (Version 1.1 or Later) 154

• Time Program Functions 156

• Time Schedule Configuration 157

• Optimal Start/Stop Configuration 161

• Programmable Logic Control Configuration 174

• Dial-up Feature with an NDM *188

• Trend Log (Versions 1.4, 2.3, 3.3, or Later) 192

• Supervisory Mode Control Settings (General Module) *195

• Controller Diagnostics 204

• Power Up Conditions 204

• Download/ Upload *206

• Calibration Values 209

* Indicates those sections where changes have occurred since the last printing.

Configuration Guides—DX-9100 Configuration Guide

Appendix A: SX Tool Item Description and Tables Page 211

• Description of Items 211

• Item List 213

• Floating Point Numbers 215

• EEPROM Items 215

Appendix B: Item Structure 217

• General Module Items Structure *217

• Programmable Function Module Items Structure 223

• Analog Input Module Items Structure 226

• Analog Output Module Items Structure 228

• Digital Output Module Items Structure 229

• Extension Module Items Structure 230

• Time Scheduling Items Structure *236

• Optimal Start/Stop Items Structure 237

• Network Information Module Items Structure 238

• Network Digital Output Module Items Structure 239

• Network Analog Output Module Items Structure 241

• Network Digital Input Module Items Structure 243

• Network Analog Input Module Items Structure 244

Appendix C: Programmable Function Module Items 247

• Algorithm 1 - PID Controller 247

• Algorithm 2 - On/Off Controller 249

• Algorithm 3 - Heating/Cooling PID Controller 251

• Algorithm 4 - Heating/Cooling On/Off Controller 253

• Algorithm 11 - Average Calculation 256

• Algorithm 12 - Minimum Selection 257

• Algorithm 13 - Maximum Selection 258

• Algorithm 14 - Psychrometric Calculation °C 259

* Indicates those sections where changes have occurred since the last printing.

Configuration Guides—DX-9100 Configuration Guide

• Algorithm 15 - Psychrometric Calculation °F

• Algorithm 16 - Line Segment Function 261

• Algorithm 17 - Input Selector 262

• Algorithm 18 - Calculator 263

• Algorithm 19 - Timer Function 264

• Algorithm 20 - Totalization 266

• Algorithm 21 - Eight Channel Comparator 269

• Algorithm 22 - Sequencer 271

• Algorithm 23 - Four Channel Line Segment Function 274

• Algorithm 24 - Eight Channel Calculator 276

Page

260

Appendix D: Logic Variables 279

• Description of Logic Variables 279

• Logic Variable Tables 280

Appendix E: Analog Items and Logic Variables for the Trend Log Module *287

* Indicates those sections where changes have occurred since the last printing.

Configuration Guides—DX-9100 Configuration Guide

DX-9100 Extended Digital Plant Controller

Introduction

This document covers all three versions of the DX-9100 Extended Digital Controller, including the DX-912x LONW

Version 1 – provides up to eight output modules, which are configured to

give two analog outputs and six digital outputs (triacs).

Version 2 – provides six additional analog output modules, giving a total

of eight analog outputs.

Version 3 – the DX-912x L

communication to the feature set of the Version 2 controller, and enhanced alarm reporting capability when used as an integral part of an Building Automation System (BAS).

In this document, BAS is a generic term, which refers to the Metasys® Network, Companion™, and Facilitator™ supervisory systems. The specific system names are used when referring to system-specific applications.

The DX-9100 is the ideal digital control solution for multiple chiller or boiler plant control applications, for the Heating, Ventilating, and Air Conditioning (HVAC) process of air handling units or for distributed lighting and related electrical equipment control applications. It provides precise Direct Digital Control (DDC) as well as programmed logic control.

ONWORKS

version brings peer-to-peer

® version. They include:

ORKS

In a standalone configuration, the DX-9100 Controller has both the hardware and software flexibility to adapt to the variety of control processes found in its targeted applications. Along with its outstanding control flexibility, the controller can expand its input and output point capability by communicating with I/O Extension Modules on an expansion bus, and provides monitoring and control for all connected points via its built-in Light-Emitting Display (LED). Versions 1 and 2 can communicate on the N2 Bus as well as on the System 91 Bus*, providing point control to the full BAS Network or to the N30 system or Companion/Facilitator System. The Version 3 controller uses the LONW of the Metasys Control Module (NCM311 or NCM361 in Europe, NCM300 or NCM350 elsewhere) in place of the N2 Bus.

*The terms System 91 Bus and Metasys Control Station are not used in North America.

Configuration Guides—DX-9100 Configuration Guide

(Echelon®) N2 Bus

ORKS

The DX-9100 has two packaging styles. In Version 1, all terminals for field wiring are located within the controller enclosure. Versions 2 and 3 require a separate field wiring mounting base or cabinet door mounting frame, which enables all field wiring to be completed before the controller is installed.

Figure 1: Version 1 (DX-9100-8154)

Figure 2: DX-9100-8454 (Version 2)/DX-912x-8454 (Version 3)

with Mounting Base

Note: The mounting base differs for DX-9120 and DX-9121.

Configuration Guides—DX-9100 Configuration Guide

The DX-9100 processes the analog and digital input signals it receives, using twelve multi-purpose programmable function modules, a software implemented Programmable Logic Controller (PLC), time schedule modules, and optimal start/stop modules; producing the required outputs (depending on the module configuration), operating parameters, and programmed logic.

Configuration of all versions of the DX-9100 Controller are achieved by using a Personal Computer (PC) with GX-9100 Graphic Configuration Software (Version 5 or later) supplied by Johnson Controls. Changes to the configuration can be made by using an SX-9120 Service Module (Version 3.1 or later).

Versions 1 and 2 (N2 Bus)

Version 3 (L

ONWORKS

N2 Bus)

The DX-9100 unit (Versions 1 and 2) has two communication links. One is called the N2 Bus or Bus 91 (the term Bus 91 is not used in North America) and is used to interface to a supervisory unit. The other link is called the XT Bus and is used to expand the DX-9100 input/output capability by interfacing up to eight XT-9100 or XTM-905 extension modules. The DX-9100 input/output can be extended by up to 64 remote input/outputs, analog or digital, depending on the type of the connected extension modules and XP expansion modules.

Point connections are made on XP modules, which are monitored and controlled by the XT-9100 or XTM-905 modules. For more details, refer to the XT-9100 Technical Bulletin in the System 9100 Manual (FAN 636.4 or 1628.4). One XP module can provide either eight analog points or eight digital points. Two XP modules connected to one extension module provides eight analog and eight digital points, or sixteen digital points.

Version 1 or 2 of the DX-9100 can be used as a standalone controller or it can be connected to a BAS through the RS-485 serial communications bus (N2 Bus or Bus 91).

Version 3 of the controller (DX-912x-8454) brings peer-to-peer communication to the feature set of the Version 2 controller, and enhanced alarm reporting capability when used as an integral part of a Metasys BAS Network.

The new communications features are provided by the L

ONWORKS

Network, which enables Version 3 controllers to pass data from one to another and to send event-initiated data to the NCM350 (NCM361 in Europe) Network Control Module, in the BAS. The L

ONWORKS

(Echelon) N2 Bus is used in place of the N2 Bus, and the NCM300 or NCM350 (NCM311 or NCM361 in Europe) must be fitted with a L

ONWORKS

(Echelon) driver card.

The Version 3 controller retains all the input/output point and control capabilities of the Version 2 controller, including the point expansion feature using extension modules and expansion modules.

Configuration Guides—DX-9100 Configuration Guide

In addition to the Version 2 features, the Version 3 controller has network input and output points, which can be configured to transmit and receive data over the LONW

Bus. Each controller may have up to 16 network

ORKS

analog input modules, 16 network analog output modules, 8 network digital input modules, and 8 network digital output modules. While network analog input and output modules each contain a single analog value, the network digital input and output modules each contain 16 digital states, which are transmitted as a block between controllers. The transmission of point data is managed by the LONW

Network and is

ORKS

independent of the supervisory functions of the BAS Network Control Module (NCM). A network of Version 3 controllers can be installed to share analog and digital data between controllers on a peer-to-peer basis; a Network Control Module is not required unless the network is to be supervised by a BAS.

Complex control strategies may now be performed in multiple DX-912x controllers without the need for network data exchange routines in a supervisory controller. Applications include the control of multiple, interdependent air handling units, and large hot water or chilled water generating plants with components distributed in various locations within the building.

LONM

ARK



Compatibility

The Version 3 controller has been approved as a LONM conforms to the LONM

Figure 3: LONM

specification for network data transmission.

ARK

Trademark

ARK

device and

Further information about compatibility and interoperability with other L

ONMARK

devices may be requested from your local Johnson Controls

office.

Configuration Guides—DX-9100 Configuration Guide

Related Information

Refer to Table 1 for additional information on System 9100 controllers:

Table 1: Related Information

Document Title Code Number FAN

DX-9100 Extended Digital Controller Technical Bulletin

DX-9100 Configuration Guide

GX-9100 Software Configuration Tool User’s Guide

ORKS

LONW

XT-9100 Technical Bulletin

XT-9100 Configuration Guide

NDM Configurator Application Note

Scheduling Technical Bulletin

Point History Technical Bulletin

SX-9100 Service Module User’s Guide

N2 Bus Technical Bulletin

LIT-6364020 636.4, 1628.4

LIT-6364030 636.4, 1628.4

LIT-6364060 636.4, 1628.4

LIT-6364100 636.4

LIT-6364040

LIT-1628440

LIT-6364050

LIT-1628450

LIT-6364090

LIT-1628490

LIT-636116 636

LIT-636112 636

LIT-6364070

LIT-1628470

636.4

1628.4

636.4

1628.4

636.4

1628.4

636.4

1628.4

Configuration Guides—DX-9100 Configuration Guide

Hardware Configuration

For full details of the hardware configuration, refer to the DX-9100 Extended Digital Controller Technical Bulletin(LIT-6364020) and the XT-9100 Technical Bulletin (LIT-6364040).

In summary, the DX-9100 has the following interfaces, inputs, and outputs:

Versions 1 and 2

Version 3

All Versions

Version 1

• One N2 Bus (Bus 91) RS-485 port for BAS communication

• One L

ONWORKS

N2 Bus for BAS communication and peer-to-peer communication with other controllers on the same bus (maximum of 30 controllers on one L

ONWORKS

Bus)

• One XT Bus (RS-485 port) for up to 8 extension modules and a

maximum of 64 inputs/outputs

• One port for service module (SX-9120) communication

• Eight digital input ports for connection to voltage-free contacts

• Eight analog input ports; the DX-9100 accepts 0-10 VDC or 0-20 mA

signals from active sensors, or can be connected to Nickel 1000 (Johnson Controls or DIN standard), Pt1000, or A99 passive RTD sensors, as selected via jumpers on the circuit board

• Six isolated triac digital outputs to switch external 24 VAC circuits

with devices such as actuators or relays

• Two analog output ports, 0-10 VDC or 0-20 mA, as selected via

jumpers on the circuit board; also, 4-20 mA may be selected by configuration

Versions 2 and 3

• Four analog outputs, 0-10 VDC or 0-20 mA, as selected via jumpers

on the circuit board; also, 4-20 mA may be selected by configuration

• Four additional analog outputs, 0-10 VDC only

• One RS-232-C port for local downloading and uploading software

configurations (N2 Bus protocol)

The software configuration determines how these inputs and outputs are used, and their range and application.

The DX-9100 must be supplied with a 24 VAC power source. All models are suitable for 50 Hz or 60 Hz through software configuration.

Configuration Guides—DX-9100 Configuration Guide

Software Configuration

DX-9100 Software Elements

Version 3 Only

The DX-9100 is a microprocessor-based programmable controller. It has the following software elements:

• eight analog input modules

• eight digital input modules

• two analog output modules in Version 1;

eight analog output modules in Versions 2 and 3

• six digital output modules

• up to 64 additional inputs/outputs from up to 8 extension modules

• twelve programmable function modules with algorithms for control

and calculation

• eight analog constants and 32 digital constants

• one programmable logic control module with 64 logic result statuses

• eight time schedule modules

• two optimal start/stop modules

• sixteen network analog input modules

Configuration Tools

• eight network digital input modules

• sixteen network analog output modules

• eight network digital output modules

A user configures the controller using the GX-9100 Graphic Software Configuration Tool. The SX-9120 Service Module is used to troubleshoot and adjust individual parameters. Techniques for both tools are described in the following sections.

For complete documentation on both tools, see the GX-9100 Software

Configuration Tool User’s Guide and the SX-9120 Service Module User’s Guide in FAN 636.4 or 1628.4.

Following is a brief description of the main features of the GX-9100 Software Configuration Tool. Note that the term, click on, means to position the cursor on the module or menu and then press the appropriate mouse button to select it.

Note: When using the GX Tool, after entering a parameter, always click

on OK to confirm.

Configuration Guides—DX-9100 Configuration Guide

Entering Data into Modules

To enter data into a module displayed on the screen of the GX Tool, place the cursor on the module, click once on the right mouse button and the module menu will appear:

Data...

Delete

Connect... F5

Disconnect... F4

Show Selected

Show User Names

dxcon004

Figure 4: Module Menu

Place the cursor on Data and press either mouse button. A Data Window appears containing all module data. Use the <Tab> key or mouse to move the cursor from field to field. To make an entry, move the cursor to the entry field and type in the information. To go to the second page in the Data Window (if there is one), click on the Data-2 field. To return to the first page, click on OK or Cancel.

To exit a window, click on OK to confirm entries, or Cancel to discard them, while in the first page.

Entering Values

The following table shows the accuracy that may be lost due to rounding errors. Numbers with a modulus of greater that 2047 may be rounded up or down by 0.1% as follows:

Table 2: Rounding Errors

Range Rounding (+/-)

2048-4095

4096-8191

8192-16383

16384-32767

The rounding is due to the external communications bus protocol and does not compromise the precision of the internal control processes.

Configuration Guides—DX-9100 Configuration Guide

Entering User Names

The Data Window contains User Name and Description entry fields. Up to 8 characters may be entered in the User Name field, and the Description field can have up to 24 characters.

The Data Window also contains an Output Tag field for module outputs (i.e., source points), which can be connected to another module as inputs (destinations) and an Input Tag field for module inputs. To enter User Names for outputs, position the cursor over the Output Tag field and press the left mouse button once. To enter User Names for inputs, select the Input Tag field.

Making Connections

To expand a module displayed on the screen of the GX Tool, in order to view input/output connections, place the cursor over the module and double-click on the left mouse button. Input connections appear in the left column with @ attached to the Tag Name, and output connections are shown in the right column, except for output modules where all connections appear in one column. To close a module, place the cursor over the expanded module and double-click on the left mouse button.

Connections are made using one of the four methods outlined below. Note that only the first method is referred to later in this guide. An existing connection must be disconnected before making a new connection.

• The first method is to expand the source and destination modules by

moving the cursor to each module in turn and double-clicking the left mouse button. Move the cursor over the desired output of the source module and the cursor appears as an output arrow. Hold down the left mouse button and drag the arrow to the desired destination input. When the left mouse button is released, a connection line will be drawn between the two modules.

• The second method is to select the source module by positioning the

cursor over the module and pressing the left mouse button and then the <F5> key. A list of the possible source output connections for that module will be shown. Move the cursor to the desired output to select it (it will appear highlighted) and click on OK (alternatively, double-click on the desired output). To complete the connection, select the destination module by pressing the left mouse button and then the <F5> key. A list of the possible destination inputs for that module will be shown. Select the desired destination from the dialog box and click on OK (alternatively, double-click on the desired destination). A connection line will be drawn between the two modules.

Configuration Guides—DX-9100 Configuration Guide

• The third method is to select the source module by positioning the

cursor over it and pressing the right mouse button. The module menu will appear. Select Connect and a list of possible source outputs for that module will appear in a dialog box. Move the cursor to the desired output to select it (it will appear highlighted) and click on OK (alternatively, double-click on the desired output). Then select the destination module by positioning the cursor on it and pressing the right mouse button. The module menu will appear. Select Connect and a list of possible destination inputs for that module will be shown. Move the cursor to the desired input to select it and click on OK (alternatively, double-click on the desired input). A connection line will be drawn between the two modules.

• The fourth method is to go to the destination module data window,

move the cursor to a connection field, press the <*> key on the keyboard, and the available source output tags will be displayed for selection.

Configuring the Controller

Configuring the controller involves:

• defining characteristics and parameters of the input and output

modules, the programmable function modules for control and calculation, the extension modules, and the programmable logic control module

• defining connections between the modules in order to achieve the

desired sequence of control

• setting the time scheduling, optimal start/stop, and realtime clock

parameters

Proceed in the following order:

1. Select the controller type (Versions 1, 2, or 3).

2. Define DX-9100 Global Data under the Edit menu.

3. Define Job Information under the Edit menu.

4. Define analog and digital input characteristics.

5. Define analog and digital output characteristics.

6. Define extension module structures and characteristics.

7. When applicable, define network inputs and outputs for the Version 3 controller (L

ONWORKS

8. Define programmable function module/algorithm characteristics.

9. Define time schedule and exception day settings.

10. Define programmable logic control module.

Configuration Guides—DX-9100 Configuration Guide

Bus).

DX-9100 Controller Selection

Via GX Tool

Via the SX Tool

DX-9100 Global Data

Set Power Line Frequency (50 or 60 Hz)

Select the controller version under the Controller menu:

• DX Version 1.1, 1.2, 1.3, or

• DX Version 1.4, or

• DX Version 2.0, 2.1, 2.2, or

• DX Version 2.3, 2.4 or

• DX Version 3.0, 3.1, 3.2, or

• DX Version 3.3 or 3.4

The SX Tool will display the controller type when first connected to the controller. No user selection is required.

Via the GX Tool

At the menu bar at the top of the screen, select Edit-Global Data and a window appears. Under Frequency, click on 50 or 60 Hz. Then click on OK to confirm the setting. (To discard an entry, click on Cancel.)

Set Initialize on Power Up Flag

Via the SX Tool

Under General Module, set bit X7 of Item DXS1 (RI.32):

• X7 = 0 50 Hz power line

• X7 = 1 60 Hz power line

When this flag is set to cancel or 1, the override-type Items listed below are reset after each power up of the controller.

When set to maintained or 0, these override-type Items are maintained through the power failure.

• Shutoff mode request

• Startup mode request

• Enable Digital Output (Triac) Supervisory Control

• Set Digital Output (Triac) On

• Output Hold mode (Analog and Digital)

• Programmable Function Module Hold

• Time Schedule Module Hold mode

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select Edit-Global Data. Under Init. on Power Up, click on maintained or cancelled.

Via the SX Tool

Under General Module, set bit X8 of Item DXS1 (RI.32):

X8 = 0 No initialization on power up (commands from BAS maintained)

X8 = 1 Initialization on power up (commands from BAS cancelled)

Counter Type Flag

In the controller, four bytes are reserved for digital input counters and accumulators in programmable modules. When the DX-9100 is connected to a BAS, the counter type flag must be set to 0 because the system will only read 15 bits (maximum reading of 32,767). For BASs that can read four bytes, or for standalone applications, the flag may be set to 1. The counter will then read a maximum value of 9,999,999 and then reset to 0. See Supervisory Mode Control Settings (General Module) further in this document.

Via the GX Tool

Select Edit-Global Data. Under Counter Type, click on one of the following:

• 15-bit (BAS)

• 4-byte

Via the SX Tool

Under General Module, set in bit X4 of Item DXS1 (RS.32):

X4 = 0 Selects 15-bit counters

X4 = 1 Selects 4-bit counters

Global Data Notes

For temperature unit selection, refer to the Analog Input Configuration section below.

For daylight saving time, refer to the Time Program Functions section later in this document.

Configuration Guides—DX-9100 Configuration Guide

Configuration Number (Version 1.1 or Later)

A configuration number may be entered for configuration identification purposes. The number will be displayed on the front panel of the controller during initialization. The configuration number is also read and used by the DX LCD Display to identify which of the display configurations in its database to use for this controller.

Via the GX Tool

Via the SX Tool

Password Feature (Versions 1.4,

2.3, 3.3, or Later)

Select Edit-Global Data. Enter the appropriate number in the User Config Code field.

Under General Module, enter the appropriate number in Item ALG (RI.33).

The password is used to protect a configuration when loaded into a controller. Once the password has been downloaded into the controller with the configuration, the controller will only allow a subsequent download or upload when the password is entered in the Download or Upload dialog box of the GX Software Configuration Tool. The password is encrypted by the GX Tool before download.

WARNING: If the password is lost and the user does not have

access to the original configuration file that includes the password, then the controller must be returned to the supplier or the Johnson Controls factory to have the memory cleared.

Via the GX Tool

Via the SX Tool

IMPORTANT: A password of 0 disables the protection feature.

The password feature is only available with firmware Versions 1.4, 2.3, 3.3, or later. In older versions, the password feature was not implemented.

Note: The password feature is enabled by an entry in the GX9100.ini file

of the GX Tool. The GX Tool software is delivered without this entry. Refer to the GX-9100 Software Configuration Tool User’s Guide (LIT-6364060) for details.

Select Edit-Global Data. Enter the password (one to four alphanumeric characters) in the Password field. Enter 0 if the password feature is not required. The default password is 0000.

The password cannot be accessed via the SX Tool. A GX Tool must be used.

Configuration Guides—DX-9100 Configuration Guide

Analog Input Configuration

The DX-9100 Controller can accept up to eight analog inputs, which are active (voltage or current) or passive (RTD). Each analog input is defined and configured by the following parameters:

• User Name and Description (GX only)

• Input Signal/Range

• Measurement Units

• Enable Square Root

• Alarm on Unfiltered Value

• Alarm Limits

• Filter Time Constant

AI: Input Signal and Ranging

User Name and Description

Via the GX Tool

To assign the input as active or passive, position the cursor on the appropriate box and double-click the left mouse button. Then position the cursor accordingly and click the left mouse button once to select either Active or Passive.

Select AIn using the right mouse button. Then select Data in the module menu, and enter as appropriate:

User Name (maximum 8 characters)

Description (maximum 24 characters)

For active inputs, at the Type of Active Input field, enter:

0 = 0-10 VDC

1 = 4-20 mA

2 = 0-20 mA

Configuration Guides—DX-9100 Configuration Guide

Each analog input module performs the conversion of the input signal to a variable numeric value expressed in engineering units obtained using the high range and low range.

High Range (HR) = Enter the equivalent number for reading at

high signal input (10 V, 20 mA)

Low Range (LR) = Enter the reading at low signal input

(0 V, 0 mA, 4 mA)

AI = (PR% / 100) * (HR - LR) + LR

where: PR% = analog value in % of physical input signal

For passive inputs at the Type of Passive Input field, enter:

1 = Ni1000 (Johnson Controls characteristic)

2 = Ni1000 Extended Temperature Range (Johnson Controls

characteristic)

3 = A99 (Johnson Controls characteristic)*

4 = Pt1000 (DIN characteristic)

5 = Ni1000 (L. & G. characteristic) (Firmware, Version 1.1 or later)

6 = Ni1000 (DIN characteristic) (Firmware, Version 1.1 or later)

*Note: The North American Johnson Controls silicon sensors

(TE-6000 series) have very similar characteristics to the A99 sensor. At 21°C (70°F) and 25°C (77°F) the reference values are identical. At -40°C (-40°F), the reading will be 0.8°C (1.5°F) high. At 38°C (100°F), the reading will be 0.3°C (0.5°F) high.

For Resistance Temperature Device (RTD) inputs, the range of the displayed value is fixed according to the type of sensor. The high/low range entries will not have any effect on the actual sensor readout. The configured high and low ranges determine the control range of any control module to which it is connected. (The difference between the High Range value and the Low Range value is equivalent to a proportional band of 100%.)

At the High/Low control range field, enter the required value:

High Range (Control) =

Low Range (Control) =

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Under Analog Inputs configure Item AITn (RI.00):

(Low Byte)

X7 = 0 0-10 Volts

X7 = 1 0-20 mA, 0-2 V or RTD

X8 = 1 20% suppression (2-10 V or 4-20 mA)

(High Byte)

X11 X10 X9 = 000 Active Sensor (Linear)

X11 X10 X9 = 001 Ni 1000 RTD Passive Sensor

(Johnson Controls)

(-45 to 121°C [-50 to 250°F])

X11 X10 X9 = 010 Ni 1000 RTD High Temperature

Sensor

(21 to 288°C [70 to 550°F])

X11 X10 X9 = 011 RTD Sensor A99 (Johnson Controls)

(-50 to 100°C [-58 to 212°F])

AI: Measurement Units

X11 X10 X9 = 100 RTD Sensor Platinum 1000 (DIN)

(-50 to 200°C [-58 to 392°F])

Version 1.1 or Later

X11 X10 X9 = 101 Ni 1000 RTD (L. & G.)

(-50 to 150°C [-58 to 302°F])

X11 X10 X9 = 110 Ni 1000 RTD (DIN)

(-50 to 150°C [-58 to 302°F])

For active inputs, the analog input module performs the conversion of the input signal to a variable numeric value expressed in engineering units obtained using the high range at Item HRn (RI.01) and low range at Item LRn (RI.02).

For RTD passive inputs, the range of the displayed value is fixed according to the type of sensor. The configured range determines the control range of any control module to which it is connected.

Via the GX Tool

To choose between Celsius and Fahrenheit for active and passive sensors, select Edit-Global Data. Under Temperature Units, select Celsius or Fahrenheit.

Configuration Guides—DX-9100 Configuration Guide

To set the measurement units for active sensors, select the AIn module, and then Data to call up the Data Window. Enter in the Measurement Units field:

0 = None

1 = Temperature (C or F as entered under Edit-Global Data)

2 = Percent (%) (Version 1 only)

In a Version 1 controller the units are displayed on the front panel of the controller as °t, %, or none.

Via the SX Tool

Under Analog Inputs, configure Item AITn (RI.00). The measurement and temperature units of each analog input can be selected with the following bits (low byte):

X4 X3 X2 X1 = 0000 No Units

X4 X3 X2 X1 = 0001 Celsius

X4 X3 X2 X1 = 0010 Fahrenheit

X4 X3 X2 X1 = 0011 Percent (Version 1 only)

AI: Enable Square Root

For RTD sensor inputs, Celsius and Fahrenheit units must be selected. Changing individual units for each AI can only be done via the SX Tool.

This function allows the linearization of the differential pressure signal from a 0-10 VDC or 0/4-20 mA active sensor; the function is effective over the selected range and is only available for active sensors.

AI = sqrt (PR%/100) * (HR - LR) + LR

Where PR% = the Analog Value in % of the physical input signal range; HR = High Range Value; and LR = Low Range Value.

Via the GX Tool (option only available with active sensor)

Select AIn. Then select Data in the module menu. At the Square Root field, enter 0 to disable the square root function, or 1 to enable the square root function.

Via the SX Tool

Under Analog Inputs, configure Item AITn (RI.00) (low byte):

X5 = 1 Enable Square Root of Input

X5 = 0 Disable Square Root of Input

AI: Alarm on Unfiltered Value

An alarm from the High Limit and Low Limit Alarm values will be generated from the unfiltered input.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select AIn. Then select Data in the module menu. At the Alarm Unfiltered field, enter 0 to set an alarm on a filtered value, or 1 to set an alarm on an unfiltered value.

Via the SX Tool

Under Analog Inputs, configure Item AITn (RI.00) (low byte):

X6 = 1 Alarm on Unfiltered Value

X6 = 0 Alarm on Filtered Value

AI: Alarm Limits

The high limit and the low limit define at which levels the analog input reading will generate an alarm, either for remote monitoring or for internal use within the control sequences in the DX-9100. A limit differential defines when a point comes out of alarm.

Note: The limits cannot be deleted. If you do not want alarms, enter

limits beyond the high/low range of the sensor.

High Limit

Differential

Val ue

Differential

Low Limit

High Alarm

No Alarm

Low Alarm

dxcon005

Figure 5: How Alarm Limits Function

Via the GX Tool

Select AIn. Then select Data in the module menu. At the respective field, enter the required value:

High Limit =

Low Limit =

Limit Differential =

Configuration Guides—DX-9100 Configuration Guide

The low limit and high limit alarm processing can be disabled. In the menu bar, select Edit-Add Alarm Disable. The corresponding module (box) will appear on screen. Make connections as described earlier under

Configuration Tools - Making Connections.

Note: The Alarm Disable feature is sometimes referred to as Auto

Shutdown in the BAS.

Via the SX Tool

Under Analog Inputs, the alarm limits differential is adjustable with Item ADFn (RI.06). The high limit is at Item HIAn (RI.03), the low limit is at Item LOAn (RI.04).

The low and high limit alarm processing can be disabled by making a logical connection to Item ALD@ - Alarm Disable Condition Source (General Module RI.31).

For Both SX and GX

When the logic signal connected to ALD@ or Alarm Disable Condition Source is true (1), alarm states on analog inputs will be frozen until the logical signal returns to false (0). (Alarm states on analog inputs to XT modules are not frozen by the ALD@ connection.)

AI: Filter Time Constant

AI Notes

The Filter Time Constant Ts (seconds) is used to filter out any cyclic instability in the analog input signals. The calculations are:

FVt = FV

Where: FV

Via the GX Tool

+ [1/(1 + Ts)] * (AIt - FV

t-1

= Filtered Analog Value at current time

= Filtered Analog Value at previous poll

t-1

= Actual Analog Value at current time

t-1

)

Select AIn. Then select Data in the module menu. At the Filter Constant (sec) field, enter a number within the recommended range 0 to 10.

Via the SX Tool

Under Analog Inputs, the Filter Time Constant is selected at Item FTCn (RI.05).

1. You can read the AI values, and read and modify the alarm limit values using the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

Configuration Guides—DX-9100 Configuration Guide

2. The alarm condition of one or more analog inputs is also indicated by an LED (AL) on the front panel. If the LED is steady, the current AI is in alarm; if flashing, another AI is in alarm.

3. Using the SX Tool, analog input values can be read at Analog Inputs Item AIn (RI.07), and the percent of range value can be read at Item AI%n (RI.08). The value as an ADC count can be read at Item ADCn (RI.09).

4. Using the SX Tool, analog input alarm statuses can be read at General Module Item AIS (RI.07), or at Analog Input Item AISTn (RI.10), where bits X1 and X2 indicate the high and low alarm conditions, respectively.

5. Under Analog Inputs, the analog Item AISTn (RI.10), bits X3 and X4, indicate an input over-range (input about 2% of range above HR) condition and an input under-range (input about 2% of range below LR) condition, respectively. (This information is available on the SX Tool only.)

6. Calibration coefficients for active and passive analog inputs are stored in the EEPROM of the DX. See the Calibration Values section further in this document.

GX Labels

Source Points (Outputs)

AIn The current value of the analog input.

AI%n The current value of the analog input in percent (%) of range.

AIHn A 1 if the analog input is above its high limit and not below the

high limit - limit differential.

AILn A 1 if the analog input is below the low limit and not above the

low limit + limit differential.

OVRn A 1 when the value of an active analog input is more than

about 2% above its high range (overrange condition), or a passive analog input is open circuited.

UNRn A 1 when the value of an active analog input is more than

about 2% below its low range (underrange condition), or a passive analog input is short circuited.

Destination Points (Inputs)

None.

Note: The following destination point is applicable to all analog inputs:

ALDS@ The connection to disable alarm processing on analog inputs

AI1 - AI8.

Configuration Guides—DX-9100 Configuration Guide

Digital Input Configuration

The DX-9100 Controller can accept up to eight digital inputs, which will be considered active when driven to a common digital ground by an external volt-free contact. The DI is defined and configured by the following parameters:

• User Name and Description (GX only)

• Prescaler

The digital input transitions are counted as follows:

DI: User Name, Description, Prescaler

Digital

Input

DIn

Prescale

Factor

PCn

Count

Transition

DICn

Pulse

Counter

CNTRn

dxcon006

Figure 6: Digital Input Transitions

The Pulse Counter (CNTRn) counts all state transitions of the bit-Item DICn. A state transition at DICn occurs when the number of transitions from 1 to 0 of DIn Digital Input equals the value of the Prescaler Factor (PCn). For example, if PCn is equal to 1, then every 1 to 0 state transition at the DI will add 1 to CNTRn. If equal to 3, then three changes from 1 to 0 will add 1 to CNTRn. The maximum transition rate of DIn is 10 pulses per second (minimum 50 ms On and 50 ms Off).

Via the GX Tool

Select DIn. Then select Data in the module menu.

At the User Name field, enter the name, which can have a maximum of eight characters.

At the Description field, enter the descriptive text, which can have a maximum of 24 characters.

DI Notes

At the Prescaler (counts) field, enter a number between 1 and 255.

Via the SX Tool

Under General Module, enter the prescaler for each digital input at Items PC1 (RI.22) to PC8 (RI.29).

1. You can read the DI’s status and counter values using the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. On the SX Tool, the digital input status (DIn), the count transition status (DICn) and the pulse counter values can be read under General Module at the Items given in Figure 6.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

DIn The current status of the digital input.

DICn Toggles from 0 to 1 or 1 to 0 when the number of digital input

transitions (counts) equals the prescaler.

Destination Points (Inputs)

None.

Analog Output Configuration

The DX-9100 Controller has two analog outputs (numbered 1 and 2), controlled by two analog output modules, and six digital (triac) outputs (numbered 3 to 8) controlled by six logic output modules. Versions 2 and 3 of the DX-9100 have an additional six analog outputs (numbered 9 to 14) controlled by six analog output modules.

The analog output module provides the interface between a 0-10 VDC or 0/4-20 mA hardware output and a numeric value scaled to a 0-100% range using a high and low range variable.

Each analog output is defined and configured by the following parameters:

• user name and description (GX Only)

• type of output

• numeric source

• increase/decrease source (if any)

• low and high ranges

• forcing mode and level

• hold or auto on power up

• output limits, enable limits

AO: Output Type

Via the GX Tool

Select AOn. Then select Data in the module menu. At the field User Name, enter the name.

At the Description field, enter the description.

Then enter the output code:

0 = Disabled

1 = 0 to 10 VDC

2 = 0 to 20 mA (not available for Outputs 11-14)

3 = 4 to 20 mA (not available for Output 11-14)

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Under Output Modules, the output type can be configured in Item AOTn (RI.00). To define the output signal set the bits as follows:

X2 X1 = 00 Output Disabled

X2 X1 = 01 Output 0-10 V

X2 X1 = 10 Output 0-20 mA (not available for Outputs 11-14)

X2 X1 = 11 Output 4-20 mA (not available for Outputs 11-14)

AO: Source

This defines the source of the numeric control signal that drives the output module. The output module can, alternatively, have two logic sources: the source of the increase signal and the source of the decrease signal. The rate of increase or decrease is fixed at 1% per second.

Via the GX Tool

Expand both source and AOn modules. Place the mouse on the source point. Hold down the left mouse button and drag the cursor to the center of AO@. The connection will be made when the mouse button is released.

If logic variables (Increase/Decrease) are used as a source to drive the analog output, then the source module and AOn module must be expanded as described above. Place the cursor on the logic source point. Press the mouse button and while keeping it pressed, drag the cursor to INC@ in the AOn module. Release the mouse button to make the connection. Repeat the same procedure for the DEC@ connection.

Via the SX Tool

Under Output Modules, Item AO@n (RI.01) defines the source of the numeric control signal. Alternatively, the source of the increase signal is defined in Item INC@n (RI.10), and the source of the decrease signal is defined in Item DEC@n (RI.11).

AO: Forcing Mode and Level

This defines the source of a logic variable that forces the Analog Output to a forcing level between 0 and 100%. When the logic source is 1, the AO will be forced to the % entered in Forcing Level. When the logic source is 0, the AO will be commanded to position via the source point.

Note: If a PID is connected to the AO and the AO is forced, the PID will

experience force-back, which means the PID is also in Hold mode at this time and its output is forced to the value of the analog output.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select AOn. Then select Data in the module menu. At the Forcing Level (%) = field, enter a number between 0 and 100%.

Double-click on AOn to expand the module. Double-click on the source module. Place the cursor on the logic source point. Press the mouse button and while keeping it pressed, drag the cursor to AOF@. Release the mouse button to make the connection.

Via the SX Tool

Under Output Modules, Item AOF@n (RI.02) defines the source of a logic variable that forces the output to the forcing level, which is defined in Item OFLn (RI.05).

AO: Hold or Auto On Power Up

Upon power restoration, the AO can optionally be forced to a Hold (Manual) or Auto (Hold reset) condition, irrespective of the Hold condition before the power failure and overriding the Initialization on Power Up setting for the controller and overrides sent from the front panel or BAS.

Via the GX Tool

Select AIn. Then select Data in the module menu. Then enter 1 for the appropriate power up condition, if required:

Hold on Power Up = (1 = Yes)

Auto on Power Up = (1= Yes)

If both Hold and Auto are enabled, Hold has higher priority. If both are disabled, the current setting under the Initialization on Power Up field determines the output.

Via the SX Tool

Under Output Modules, set bits X7 and X8 of Item AOTn (RI.00) as follows:

bit X8 = 0 The Hold mode is not altered after a power failure.

bit X8 = 1 The Hold mode is set at power up to the status set in bit X7.

bit X7 = 0 The Hold mode is set to hold at power up if bit X8 is set.

bit X7 = 1 The Hold mode is reset (set to 0) at power up if bit X8 is set.

Configuration Guides—DX-9100 Configuration Guide

AO: Range

The High Range Item (HRO) defines the level of the control source signal (AOn), which would correspond to an output of 100%.

The Low Range Item (LRO) defines the level of the control source signal (AOn), which would correspond to an output of 0%.

If LROn < AOn < HROn OUTn = 100 * (AOn - LROn)/(HROn -

LROn)%

If AOn <= LROn OUTn = 0% (0 V, 0/4 mA)

If AOn >= HROn OUTn = 100% (10 V, 20 mA)

When the source point is equal to the high range, then the output will be at the maximum signal (10 V/20 mA). When the source point is equal to low range, then the output will be at the minimum signal (0V, 0/4 mA).

Via the GX Tool

Select AIn. Then select Data in the module menu. At the High Range and Low Range fields, enter the appropriate numbers within the range of the source signal:

High Range =

AO: Output Limits, Enable Limits

Low Range =

Via the SX Tool

Under Output Modules, set the High Range at Item HROn (RI.03) and the Low Range at Item LRO (RI.04).

The output high limit defines the maximum output in percent. The output low limit defines the minimum output in percent. These limits are enabled by a logic connection and are only operative when the logic source is at 1.

When the limits are enabled:

If OUTn > HLOn

OUTn = HLOn

If OUTn < LLOn

OUTn = LLOn

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select AOn. Then select Data in the module menu. At the High Limit % and Low Limit % fields, enter the desired number (0-100%). For Enable Limits, expand both source and AOn modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to ENL@. Release the mouse button to make the connection.

Via the SX Tool

Under Output Modules, set the following:

High Limit on Output = Item HLOn (RI.08)

Low Limit on Output = Item LLOn (RI.09)

The limits are enabled by a logic connection to Item ENL@n (RI.12).

AO Notes

1. The AO can be read and overridden (placed in hold) from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended

Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or

1628.4.

2. On the SX Tool, the analog output values can be read in percent at Item OUTn (RI.06) and can be modified when the module is in Hold mode.

3. On the SX Tool, Analog output control and status can be seen at Item AOCn (RI.07) in the following bits:

X1 = 1 OUHn Output in Hold mode (Manual)

X2 = 1 AOHn Output at High Limit ... 100%

X3 = 1 AOLn Output at Low Limit ... 0%

X4 = 1 AOFn Output is Forced

X6 = 1 OULn Output is Locked (Both INC@n and DEC@n

are true)

4. The analog output module can be set in Hold on the DX front panel or by the PLC, the SX Tool, a BAS, or by configuration on power up.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

AOFn A 1 when an analog output (AO) is being externally forced.

AOHn A 1 when the analog output is equal to or above its high range.

AOLn A 1 when the analog output is equal to or below its low range.

OUHn A 1 when an analog or digital output is in Hold mode from

either the DX front panel or BAS.

OUTn The value of the analog output (including PAT or DAT).

Destination Points (Inputs)

AO@ The numeric connection to control an analog output.

AOF@ The connection to force an analog output to a specified value.

DEC@ The connection to decrement an analog type output, PAT/DAT

digital type output or a sequencer module. While connection is a logic 1, the output will decrease at a rate dependent on the type of module.

ENL@ The connection to enable output limits of an analog type output

(PAT and DAT included).

INC@ The connection to increment an analog type output, PAT/DAT

digital type output or a sequencer module. While connection is a logic 1, the output will increase at a rate dependent on the type of module.

Configuration Guides—DX-9100 Configuration Guide

Digital Output Configuration

The DX-9100 Controller has six digital output modules that are used to control six triacs. The digital output module provides the interface between a triac output and a numeric or logic variable. The modules can be programmed as one of five main output types.

Some of the output types drive two consecutive outputs. In that case the second, consecutive module will be disabled, as it cannot be executed.

For each digital output module one must define:

• the type of output

• User Name and Description

For digital output modules defined as PAT or DAT, you must also define:

• the source

• increase/decrease source (if any)

• the source of the feedback (if any) (PAT only)

• the low and high ranges

• the Forcing Mode and Level

• Hold or Auto on power up

PAT Position Adjust Type

• output limits, enable limits source (if any)

• the PAT full stroke time or DAT cycle

• the PAT deadband or DAT minimum on/off time

The types of configurations are described next, followed by the steps needed to configure the outputs.

The PAT output type uses a pair of triacs and a numeric source. Position Adjust Type control is also known as incremental control. Using High Range and Low Range parameters, the value of the numerical source is normalized to a 0-100% value and is used as the required position for the output.

The PAT output may have a physical feedback value signal (0-100%) from an analog input or other numerical variable. In this configuration the output module will drive the first triac of the pair (increase or up signal) as long as the feedback value is less than the required position. It will drive the second triac of the pair (decrease or down signal) as long as the feedback value is greater than the required position. A deadband (in percent) is specified to avoid unnecessary cycling of the triac outputs when the feedback signal is approaching the required position, and compensates for any hysteresis or mechanical tolerances in the driven device.

Configuration Guides—DX-9100 Configuration Guide

When the PAT output does not have a physical feedback signal, it operates on the amount of change in the required position. To synchronize the PAT output module to the driven device, whenever the required position goes to 100%, the first triac (increase) will be switched on for the calculated time and will remain on for the specified Full Stroke Time of the driven device. Whenever the required position goes to 0%, the second triac (decrease) will be switched on for the calculated time and will remain on for the specified Full Stroke Time. If the required position remains at 100% or 0%, the appropriate triac will be switched on for the Full Stroke Time every two hours to ensure that the driven device remains at its end position over an extended period of time. For all other values of the required position, the PAT output module calculates the appropriate increase or decrease time, based on the Full Stroke Time, to bring the driven device from the last required position to the current required position, and switches the appropriate triac on for this time. The triac will not be switched if the change in the required position is less than the specified deadband. The calculation of the PAT time is performed on each processor cycle (every second), and the minimum triac on time is 100 msec.

Note: The DX display panel shows the required position value (OUTn)

for the digital output module associated with the first triac output.

DAT Duration Adjust Type

On/Off

The DAT output type provides a time-based duty cycle output that is proportional to the value of a numeric source. Using High Range and Low Range parameters, the value of the numerical source is normalized to a 0-100% value as is used as the required duty cycle. For example, with a 25% duty cycle and a DAT cycle time of 600 seconds, the triac output will be switched on for 150 seconds and off for 450 seconds. At 0% required duty cycle the triac is always off, and at 100% duty cycle the triac is always on. To avoid short on pulses when the required duty cycle is close to 0%, or short off pulses when the required duty cycle is close to 100%, a minimum on/off time may be specified (in percent of duty cycle). For applications with a short DAT duty cycle (< 10 sec) it should be noted that the absolute minimum on or off time of the output triac is 100 msec. The DAT will always complete a calculated on or off period before recalculating the next off or on time from the current value of the numeric source. The DAT recalculates after its on time and after its off time so a full on/off cycle may not equal the repetition cycle if the numeric source is changing.

This type provides a single maintained on/off triac output. It can be driven by either a logic source or numeric source where a positive value would equal an on and a zero or negative value would equal an off.

Configuration Guides—DX-9100 Configuration Guide

STA/STO

This type uses a pair of triac outputs and requires a logic source. A start command (logic source changes from 0 to 1) sends a one second pulse to the first triac of the pair and a stop command (logic source changes from 1 to 0) sends a one second pulse to the second triac.

Note: The DX display panel shows the status of the logic source to the

digital output module associated with the first triac output. This displayed status is also the last command (on or off) to the triac pair. The display does not indicate the actual triac status.

PULSE

DO: Output Type

User Name and Description

This type provides a single momentary triac output from a logic source. When the logic source becomes a 1, a one second pulse is sent to the triac. When the logic source changes to 0, a one second pulse is sent to the same triac.

Via the GX Tool

Double-click on DOn with the left mouse button. Then select one of the following: PAT, DAT, On/Off, STA/STO, or PULSE. Select DOn using the right mouse button. Then select Data in the module menu. Enter the user name and description in the respective fields.

Via the SX Tool

For each digital output module the type of output can be selected with the following bits under Output Modules in Item DOTn (RI.00):

X3 X2 X1 = 000 Output disabled or paired.

X3 X2 X1 = 001 On/Off - driven from a logic source.

X3 X2 X1 = 010 On/Off - driven from a numeric source

(< 0 = off, > 0 = on).

X3 X2 X1 = 011 DAT (Duration Adjust Type) output, or

time-based proportional duty cycle, driven from a numeric source.

X3 X2 X1 = 100 PAT without feedback: combination of two

outputs, driven from a numeric source.

Note: The next output is automatically taken from

X3 X2 X1 = 101 PAT with Feedback: combination of two outputs,

driven from a numeric source with an associated feedback connection.

Configuration Guides—DX-9100 Configuration Guide

the next Digital Output Module in numerical sequence.

X3 X2 X1 = 110 Start/Stop: combination of two outputs driven from a

logic source. This module gives the start command, and the next digital output (in numerical sequence) gives the stop command. Each triac switches on for one second.

X3 X2 X1 = 111 Pulse Type: the output generates a one second pulse

for each state transition of a logic source.

DO: Source

This defines the source of the signal that will drive the output module. PAT and DAT output modules, alternatively to one numeric source, can have two logic sources: the source of the increase signal and the source of the decrease signal. The rate of increase or decrease for PAT type outputs is derived from the full stroke time. For DAT type outputs the rate is 1% per second.

Via the GX Tool

Expand both source and DOn modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to DOn@. Release the mouse button to make the connection.

Alternatively, for PAT and DAT modules, you can select sources for increase and decrease. Connections are made in the usual way between the increase source point and INC@, and between the decrease source point and DEC@ in the DOn module.

Via the SX Tool

Under Output Modules, the signal source is defined by Item DO@n (RI.01). PAT and DAT output modules can, alternatively, have two logic sources. The source of the increase signal is defined in Item INC@n (RI.13), and the source of the decrease signal is defined in Item DEC@n (RI.14).

DO: Feedback for PAT

This defines the source of the analog feedback (0-100%) that is needed for the PAT with feedback type module.

Via the GX Tool

Expand the source and destination modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to FB@. Release the mouse button to make the connection.

Via the SX Tool

Under Output Modules, Item FB@n (RI.02) defines the source of the analog feedback.

Configuration Guides—DX-9100 Configuration Guide

DO: Range (PAT or DAT)

The High Range (HRO) defines the level of the control numeric source signal, which will correspond to the maximum output of 100%.

The Low Range (LRO) defines the level of the numeric control source signal, which will correspond to the minimum output of 0%.

The requested output is scaled to obtain:

OUTn = 100 * (DOn - LROn) / (HROn - LROn) %

Where DOn is the value of the control signal to the module (source value).

Via the GX Tool

Select DOn. Then select Data in the module menu. At the High Range and Low Range fields, enter the desired numbers within the range of the source control signal.

Via the SX Tool

Under Output Modules, set the following:

High Range at Item HROn (RI.04)

Low Range at Item LROn (RI.05)

DO: Forcing Mode and Level (PAT or DAT

DO: Hold or Auto On Power Up (PAT or DAT

This defines the source of a logic signal that forces the logic module output to a forcing level. When the logic connection is a 1, the output will go to a forced level; when 0, the output will go to normal control.

Via the GX Tool

Select DOn. Then select Data in the module menu. At the Forcing Level field, enter a number from 0 to 100%.

Expand the source and destination modules. Position the cursor on the logic source point. Press the mouse button, and while keeping it pressed, drag the cursor to DOF@. Release the mouse button to make the connection.

Via the SX Tool

Under Output Modules, Item DOF@n (RI.03) defines the source; Item OFLn (RI.10) defines the forcing level.

Upon power restoration, the DO can optionally be forced to a Hold or Auto (Hold reset) condition, irrespective of the Hold condition before the power failure and overriding the Initialization on Power Up setting for the controller.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select DOn. Then select Data in the module menu. Then enter 1 for the appropriate power up condition, if required:

Hold on Power up = (1 = Yes)

Auto on Power up = (1= Yes)

If both Hold and Auto are enabled, Hold takes priority. If both are disabled, the current setting under the Initialization on Power Up field determines the output.

Via the SX Tool

Under Output Modules, set bits X7 and X8 of Item DOTn (RI.00) as follows:

bit X8 = 0 The Hold mode is not altered after a power failure.

bit X8 = 1 The Hold mode is set at power up to the status set in bit X7.

bit X7 = 0 The Hold mode is set to hold at power up if bit X8 is set.

bit X7 = 1 The Hold mode is reset (set to 0) at power up if bit X8 is set.

DO: Output Limits (PAT with Feedback or DAT

If OUTn > HLOn

OUTn = HLOn

If OUTn < LLOn

OUTn = LLOn

Via the GX Tool

Select DOn. Then select Data in the module menu. At the High Range Limit % and Low Limit % fields, enter the desired numbers (0-100%).

Expand source and destinations modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to ENLn@ in the destination module. Release the mouse button to make the connection.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Under Output Modules, set the following:

High Limit on Output = Item HLOn (RI.08)

Low Limit on Output = Item LLOn (RI.09)

The limits are enabled by a logic connection to Item ENL@n (RI.15).

DO: PAT Full Stroke Time or DAT Cycle

DO: PAT Deadband

The full stroke time (in seconds) needs to be defined for PAT type modules. This is the time it takes the electromechanical actuator to drive the controlled device from fully open to fully closed or vice versa.

The DAT cycle (in seconds) also needs to be defined. This is the duration adjust time proportion base for a DAT type output.

Via the GX Tool

For PAT, select DOn. Then select Data in the module menu. At the Stroke Time (sec) field, enter the electro-mechanical actuator stroke time.

For DAT, select DOn. Then select Data in the module menu. At the Repetition Cycle (sec) field, enter the cycle.

Via the SX Tool

Under Output Modules, Item FSTn (RI.06) defines the full stroke time (in seconds) for PAT type modules.

The same Item defines the DAT cycle (in seconds).

The PAT deadband is the change in output value required to initiate triac switching in a PAT type output.

DAT Minimum On/Off Time

The DAT minimum On/Off time defines in percent of cycle the shortest on period when the required output approaches 0%, and the shortest off period when the required output approaches 100%.

Via the GX Tool

For PAT, select DOn. Then select Data in the module menu. At the Deadband field, enter the desired number (normally a whole number between 0 and 5%).

For DAT, select DOn. Then select Data in the module menu. At the Minimum On/Off (%) field, enter the desired number in percentage of repetition cycle (normally between 0 and 5%).

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Under Output Modules, Item DBn (RI.07) defines the PAT deadband.

The same Item defines the DAT Minimum On/Off in % of output.

DO Notes

1. The DOs can be read and overridden (put in hold) from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. On the SX Tool, the output values can be read in percent at Output Modules, Item OUTn (RI.11). For PAT and DAT type modules the range is 0-100%. The other types have an output of 0 (off) or 100 (on) percent.

3. Digital Output Control and Status can be seen at Item DOCn (RI.12) on the SX Tool in the following bits:

X1 = 1 OUHn Output in Hold mode (manual)

X2 = 1 DOHn Output at High Limit ... 100%

X3 = 1 DOLn Output at Low Limit ... 0%

X4 = 1 DOFn Output is Forced

X5 = 1 AFBn Incorrect Feedback

(The incorrect feedback bit is set whenever one of the PAT output triacs is switched on and the feedback signal does not change within five seconds.)

X6 = 1 OULn Output is Locked (both INC@n and DEC@n are

true)

4. The triac output status can be read on the SX Tool under General Module, at Item TOS (RI.05).

5. The digital output module can be set in Hold (Manual) on the DX front panel or by the PLC, the SX Tool, a BAS, or by configuration on power up.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

AFB A 1 when the DO PAT associated feedback value is not

responding to changes in the DO PAT command value.

DOn The status of the digital output.

DOFn A 1 when the digital output PAT or DAT is being externally

forced.

DOHn A 1 when the digital output PAT or DAT is at its defined high

limit.

DOLn A 1 when the digital output PAT or DAT is at its defined low

limit.

OUHn A 1 when an analog or digital output is in Hold mode from

either the DX front panel or BAS.

OUTn The value of the analog output (including PAT or DAT).

Destination Points (Inputs)

DEC@ The connection to decrement an analog type output, PAT/DAT

digital type output or a sequencer module. While connection is a logic 1, the output will decrease at a rate dependent on the type of module.

Constants and Result Status

Analog Constants

DO@ The connection to control a digital output.

DOF@ The connection for forcing a digital output to a specified value.

ENL@ The connection to enable output limits of an analog type output

(PAT and DAT included).

FB@ The connection to the feedback of a PAT. Usually a signal from

a potentiometer on the controlled device.

INC@ The connection to increment an analog type output, PAT/DAT

digital type output or a sequencer module. While connection is a logic 1, the output will increase at a rate dependent on the type of module.

There are eight Analog Constants in the DX-9100. The value of each constant can be set by the SX-9120 Service Module, GX-9100 Configuration software, or BAS, used in an analog connection to provide a constant analog value for a programmable function module or output module. In a Version 2 or 3 controller, the analog constants may also be set at the DX front display panel. These values are not located in EEPROM and therefore can be written to via the BAS.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select PM from the toolbar, and then Analog Constants. An ACO module (box) appears. Place it where desired on screen. Select ACO. Then select Data in the module menu. Enter the values as required. Select OK to reconfirm entries, or Cancel to discard them.

Via the SX Tool

Under General Module, set Items AC01 - 8 (RI. 34-41).

Digital Constants

Logic Result Status:

There are 32 Digital Constants in the DX-9100. The value of each constant can be set by the SX-9120 Service Module, GX-9100 Graphic Configuration Tool, or BAS, and used in a logic connection to provide a logic value for a programmable function module, output module or PLC module. In a Version 2 controller, the digital constants may also be set at the front display panel. These values are not located in EEPROM and therefore can be written to via the BAS.

Via the GX Tool

Select PM from the toolbar, and then Digital Constants. A DCO module (box) appears. Place it where desired on screen. Select DCO. Then select Data in the module menu. Enter the values as required. Select OK to reconfirm entries, or Cancel to discard them.

Via the SX Tool

Under General Module, set Items LCOS1 and LCOS2 (RI.10, RI.11). LCOS1 is DCO1-16. LCOS2 is DCO17-32.

There are 64 Logic Result Status variables in the DX-9100 (in Version 1.0, only 32 are available). The value of each status variable can be set by the OUT, OUTNOT, SET, or RST instruction of the PLC module, and can be used in a logic connection to provide a logic value for a programmable function module, output module, or PLC module. The variables can also be used to transmit status conditions to a BAS. These values are read only and can only be changed by PLC execution.

Via GX Tool

Select PM from the toolbar, and then select LRS1-32 (or LRS33-64). A module (box) will appear. Place it as desired on screen. Connections can be made in the usual way. (See Configuration Tools - Making Connections earlier in this document.)

Configuration Guides—DX-9100 Configuration Guide

Via SX Tool

Under General Module, the logic result status variables can be read at Items LRST1, LRST2, LRST3, and LRST4 (RI.08, RI.09, RI.44, RI.45). LRST1 is LRS1-16. LRST2 is LRS17-32. LRST3 is LRS33-48. LRST4 is LRS 49-64.

Analog Constants, Digital Constants Note

GX Labels

Extension Module Configuration

The analog and digital constants can be read and modified (Versions 2 and 3) from the DX front panel. See Display Panel and

Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

Source Points (Outputs)

ACOn The current value of an analog constant set by a supervisory

system, the GX Tool, SX Tool, or on the DX front panel.

DCOn The current value of a digital constant set by a supervisory

system, the GX Tool, SX Tool, or on the DX front panel.

LRSn The logic result status of an OUT, OUTNOT, SET, or RST

statement in a PLC.

Destinations Points

None.

Note: The XTM-905 extension module may be connected to DX

controllers, Versions 1.4, 2.3, 3.3, or later, and is configured, monitored and controlled using the same Items as the XT-9100 extension module.

The parameters for the configuration of inputs and outputs in extension modules reside partly in the DX-9100 Controller and partly in the XT-9100 or XTM-905 Extension Module.

The parameters required by the DX-9100 Controller are described in detail in this manual. For details on the extension modules, refer to the

XT-9100 Technical Bulletin (LIT-6364040) and the XT-9100 Configuration Guide (LIT-6364050), or the XTM-905 Extension Module, XPx-xxx Expansion Modules Technical Bulletin (LIT-6364210).

Configuration Guides—DX-9100 Configuration Guide

Each extension module is defined by the following parameters:

• input and output types, and XT/XTM layout map

• extension module address

• sources (connections) for outputs

• high and low ranges for analog outputs

• high and low limits for analog inputs

XT/XTM: Type, Mode, and Map

Via the GX Tool

The I/O type and map details are automatically generated by the GX-9100 Graphic Configuration Software when all I/O data for extension modules has been entered, and can be downloaded to the DX-9100 and also to the extension modules when connected to the DX-9100 via the XT Bus.

Select PM from the toolbar, then XT or XTM and the appropriate input/output type. A module (box) appears. Place it where desired on screen. The inputs and outputs for the XT/XTM appear on the left and right sides of the screen, respectively. Configure each input/output as appropriate (similarly to DX I/O).

A module labeled XTn or XTMn will be for the points in the first XP connected to that XT or XTM. If a second XP is connected, the EXP module must be defined immediately following the first XT or XTM. An EXPn is always an expansion to the XTn-1 or XTMn-1 module.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

The I/O types and map are configured in Extension Module Items, under

XT Modules at XTnIOMAP (RI.00), XTnIOTYP (RI.01), and XTnIOMOD (RI.02).

The I/O map (XTnIOMAP) defines which inputs/outputs (in pairs) on the extension module are used and hence monitored or controlled by the DX-9100. Eight extension modules can be defined, each with eight used points, which normally reside on the first Expansion Module XP1 (I/O Points 1-8), defined in bits X1-4.

When an extension module has a second expansion module, XP2, with a further eight points, these points must be defined in bits X5-8. However, in this case, the next extension module in numerical sequence cannot be configured because the DX-9100 will use the database area reserved for the I/O points of the next extension module for the points of XP2 in this extension module. For example, if Extension Module 1 (XT1 or XTM1) has only one expansion module, XP1, all the points of XP2 will be declared as not used (bits X5-8 set to 0) and Extension Module 2 can be configured. However if Extension Module 1 has two expansion modules and some points in XP2 are declared as used (one or more bits of X5-8 set to 1), then Extension Module 2 (XT2 or XTM2) cannot be configured and all its points must be declared as not used (bits X1-8 set to 0).The I/O type (XTnIOTYP) defines which inputs/outputs (in pairs) are analog and which are digital. As the points on XP2 (if used) must be digital, only bits X1-4 can be configured.

The I/O mode (XTnIOMOD) defines points as input or output (in pairs). Only those points declared as used in Item XTnIOMAP will be monitored or controlled.

The combination of data in the Items XTnIOMAP, XTnIOTYP, and XTnIOMOD completely defines the configuration of an extension module. An identical set of data must be entered into the Item database in the XT-9100 or XTM-905 extension module, so that when the DX-9100 and XT/XTM are connected and started up, the DX-9100 compares databases and only send commands to the extension module if the data is identical, thus avoiding incorrect control actions. If the databases are not identical, Item XTnST, bit X6 (XTnERR) will be set. If the physical hardware of the XT/XTM module does not correspond to the database, Item XTnST, bit X4 (XTnHARD) is set.

Configuration Guides—DX-9100 Configuration Guide

XT/XTM: Address, User Name, Description

The extension module address is set as an 8-bit integer (1-255). This address must also be set on the address switches of the extension module, and must be unique not only on the XT-Bus, but also on the N2 Bus (or Bus 91) to which the DX-9100 is connected. An extension module address of 0 is not permitted on the XT Bus.

Via the GX Tool

Select XTn. Then select Data in the module menu. Enter the user name and description in the window that appears. In the Hardware Address field, enter the address set on the XT-9100 or XTM-905 module (a number between 1 and 255).

Via the SX Tool

The extension module address is set under XT Modules, in Item XTnADX (RI.03).

XT/XTM: Source

Only output points require a source connection. For analog outputs the source must define a numeric variable, and for digital outputs the source must define a logic variable. Inputs and outputs appear on the left and right sides of the screen, respectively.

Via the GX Tool

Expand source and destination modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to the destination point. Release the mouse button to make the connection.

Via the SX Tool

The sources for the points declared as outputs in XP1 of XTn or XTMn are entered under XT Modules at Items XTnI1@-8@ (RI.04-11). The sources for the points declared as outputs in XP2 of XTn (if used) are entered in Items XT(n+1)I1@-8@ in the next extension module Item area (n+1). All points in this next module must already have been declared unused.

Configuration Guides—DX-9100 Configuration Guide

XT/XTM: High and Low Ranges for Analog Outputs

For analog outputs, the Analog High Range (AHR) defines the level of the source control signal that will correspond to the maximum output at the extension module, and the Analog Low Range (ALR) defines the level of the source control signal that corresponds to the minimum output at the extension module.

The value of the output is defined as follows:

If XTnALR XTnI XTnAHR XTnAO

If XTnI < XTnALR XTnAO = 0%

If XTnI > XTnAHR XTnAO = 100%

<< =

x XTnI XTnALR

100 ( )

XTnAHR XTnALR

()

−

Where XTnI is the value for the source control signal.

Via the GX Tool

Select the XT analog output point module. Then select Data in the module menu. Enter appropriate values within the range of the source signal under both the High Range and Low Range fields:

High Range =

Low Range =

Also enter the appropriate value in the Type of Output field.

Via the SX Tool

Under XT Modules, set the following Items:

Analog High Range = Items XTnAHR1-8 (RI.12-26, evens)

Analog Low Range = Items XTnALR1-8 (RI.13-27, odds)

XT/XTM: High and Low Limits for Analog Inputs

The high limit and the low limit define at which levels the analog input reading will generate an alarm for remote monitoring purposes or for internal use within the control sequences in the DX-9100.

These limits will be automatically downloaded to the extension module by the DX-9100.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select the XT analog input point module and choose Active or Passive. Then click the right mouse button to call up the module menu and select

Data. In the window that appears, enter appropriate values under both the High Limit and Low Limit fields:

High Limit=

Low Limit =

Via the SX Tool

Under XT Modules, set the following Items:

High limit = Items XTnHIA1-8 (RI.28-42, evens)

Low limit = Items XTnLOA1-8 (RI.29-43, odds)

XT Bus Timing

XT/XTM Notes

The timeout on the XT Bus for the response to a message is set according to whether XT-9100 or XTM-905 extension modules are connected.

Via the GX Tool

The timing is set automatically by the GX Tool.

Via the SX Tool

Under General Module, Item DXS1 (RI.32) set the following bits:

X6X5 = 00 XT-9100 extension modules only

X6X5 = 01 XTM-905 extension modules (or both XT-9100 and

XTM-905)

1. XT/XTM analog input values can be read, and alarm limits read and modified from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. On the SX Tool, analog input values can be read under XT Modules at Items XTnAI1-8 (RI.45-52). Only those points configured as analog inputs will be active.

3. Analog outputs can be read and overridden (put in hold) at the DX front panel. See Display Panel and Keypads in the DX-9100 Extended

Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

4. On the SX Tool, analog output values can be read in percent under XT Modules at Items XTnAO1-8 (RI.53-60). Only those points configured as analog outputs, and with the type of output defined, will be active.

Configuration Guides—DX-9100 Configuration Guide

5. On the SX Tool, the total pulse count of digital inputs on XP1 can be read and reset under XT Modules at Items XTnCNT1-8 (RI.61-68). Only those points configured as digital inputs will show a correct value.

6. Output hold control and status can be seen on the SX Tool under XT Modules at Items XTnOUH1-8 (bits X1-8 of Item XTnHDC [RI.69]). Analog and digital outputs can be modified by a BAS when in Hold mode.

7. XT/XTM digital outputs can be read and overridden (put in hold) from the DX front panel. See Display Panel and Keypads in the

DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

8. Digital output control and status can be seen on the SX Tool under XT Modules at Items XTnDO1-8 (bits X1-8 of Item XTnDO [RI.70]). Only those points configured as digital outputs will be active.

9. XT/XTM digital inputs can be read from the DX front panel. See

Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

10. Digital input status can be seen on the SX Tool under XT Modules at Items XTnDI1-8 (bits X1-8 of Item XTnDI [RI.71]). Only those points configured as digital inputs will be active.

11. Extension module alarm status from analog inputs can be seen on the SX Tool under XT Modules at Items XTnAIH1-XTnAIL8 (bits X1-16 of Item XTnAIS [RI.44]).

Note: The Alarm Disable connection, described under AI: Alarm Limits,

does not disable XT module alarms. XT/XTM alarms are only indicated by the AL LED on the DX front panel when the XT/XTM is selected for display of analog values.

Configuration Guides—DX-9100 Configuration Guide

12. Extension module local status can be seen on the SX Tool under XT Modules at Item XTnST (RI.72) in the following bits:

X1 = 1 XTnCOM XT/XTM module not answering (wrong

address, bus line broken, bus line overload).

X3 = 1 XTnMIS XT databases in DX and XT/XTM do not

match.

X4 = 1 XTnHARD XT/XTM hardware failure (XT/XTM cannot

find correct XPs; hardware missing or not responding).

X5 = 1 XTnSEL XT/XTM selected on XT-Bus.

X6 = 1 XTnERR XT/XTM configuration error XTnCOM = 1

or XTnMIS=1 or XTnHARD = 1 (Versions 1.4, 2.3, 3.3, or later)

X7 = 0 XTnFAIL XT/XTM digital outputs set to 0 on

communication failure.

X7 = 1 XT/XTM digital outputs hold current state

on communication failure. Read from XT module. See the XT-9100 Configuration

Guide (LIT-6364050) or the XTM-905 Extension Module, XPx-xxx Expansion Modules Technical Bulletin (LIT-6364210).

X8 = 1 XTnPWR XT/XTM detected loss of power or loss of

communication.

Item X8 is automatically reset by the DX-9100 Controller after a few seconds.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

XTnAIn The current value of the analog input from the XT/XTM.

XTnAIHn A 1 if the analog input is above its high limit and not below

the high limit - limit differential.

XTnAILn A 1 if the analog input is below the low limit and not above

the low limit + limit differential.

XTnAOn The value of the analog output to the XT/XTM.

XTnCOM A 1 when the extension module is not communicating

(wrong address, bus line broken, or bus line overload).

XTnDIn The current status of the digital input from the XT/XTM.

XTnDOn The status of the digital output to the XT/XTM.

XTnERR A 1 when the XT database in the DX does not match the

XT database in the XT/XTM module, or when XTnCOM is a 1, or when XTnHARD is a 1 (Versions 1.4, 2.3, 3.3, or later). (Combination of errors for XT/XTM module.)

XTnFAIL The status of the Fail mode in the XT/XTM. A 0 indicates

that outputs go to 0 on communication failure and a 1 indicates that the status of the outputs will be maintained.

XTnHARD A 1 when the expansion module is not connected or not

responding (hardware fault), or a module type does not match what was configured (for example, when an XP-9102 is configured and an XP-9103 is connected).

XTnOUHn A 1 when an analog or digital output is in Hold mode from

either the DX front panel or BAS.

XTnPWR A 1 when the extension module detects a loss of power or

loss of communication. The DX will reset this after a few seconds.

Destination Points (Inputs)

AO@ The numeric connection to control an analog output.

DO@ The connection to control a digital output.

Configuration Guides—DX-9100 Configuration Guide

Network Analog Input Configuration (Version 3 Only)

The controller has 16 network analog input modules, each contains a numerical value received from an analog output in another controller on the same LONW

N2 Bus. These inputs can be used in the

ORKS

configuration in the same way as physical analog inputs. The source of the analog data is defined in the transmitting controller.

User Tag Name and Type

For each network analog input module one must define:

• User Tag Name and Description

• Network Analog Input Units (SX Only)

Via the GX Tool

Select PM from the toolbar, then Network Analog Input, and place the NAIn on the screen. Select NAIn and Data. Enter the User Name and Description in the Data Window. The Units number is automatically set by the GX Tool.

Via the SX Tool

To configure a network analog input using the SX Tool, it is necessary to enter the units of the NAI in Item NAInDIM (RI.18 to RI.33) under NETWORK (Key 8), INPUT MODULES, and 2 (NETWORK AI MOD). There is only one unit used by the DX-912x, which is number 55. It is also necessary to change Item NAIN (RI.04) under NETWORK and GENERAL MODULE when the first NAI is defined. This Item must be set to 1 if any NAIs are used in the configuration. These Items are automatically set by the GX Tool when the NAI is created.

NAI Notes

1. On the SX Tool the numeric value of the network analog inputs can be read at Items NAIn (RI.01 to RI.16) under NETWORK and INPUT MODULES.

2. On the SX Tool the Reliability Status of each analog input module can be seen on bits X1 to X16 at Item NAISTA (RI.17). These status indications can be used for backup control strategies in the case of a transmission failure by using the corresponding logic variables (NAIU1 to NAIU16) in the PLC. The Reliability Status will be set to 1 (Unreliable) when the DX Controller does not receive a new value over the network within a period of approximately 200 seconds.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

NAIn The current value of the Network Analog Input.

NAIUn A 1 when the analog input module is unreliable.

Destination Points (Inputs)

None.

Network Digital Input Configuration (Version 3 Only)

User Tag Name and Type

The controller has 8 network digital input modules, each contains 16 digital input status values received from a network digital output in another controller. Each of the 16 digital values in the digital input module can be used in the configuration in the same way as physical digital inputs. The source of the digital data is defined in the transmitting controller. Digital data is always transmitted in blocks of 16 values from 1 controller to another and the block cannot be split apart by the network. Not all 16 values need be used and within the controller the values can be used quite independently.

For each network digital input module one must define:

• User Tag Name and Description

• Network Digital Input Type (SX Only)

Via the GX Tool

Select PM from the toolbar, then Network Digital Input, and place the NDIn on the screen. Select NDIn and Data. Enter the User Name and Description in the Data Window. The Type number is automatically set by the GX Tool.

Via the SX Tool

To configure a network digital input using the SX Tool, it is necessary to enter the type of the NDI in Item NDInTYP (RI.10 to RI.17) under NETWORK (Key 8), INPUT MODULES, and 1 (NETWORK DI MOD.). There is only one type used by the DX-9100, which is number 83. It is also necessary to change Item NDIN (RI.03) under NETWORK and GENERAL MODULE when the first NDI is defined. This Item must be set to 1 if any NDIs are used in the configuration. These Items are automatically set by the GX Tool when the NDI is created.

Configuration Guides—DX-9100 Configuration Guide

NDI Notes

1. On the SX Tool the status values of the 16 digital inputs in each of the

8 network digital input modules can be read at bits X1 to X16 in Items NDIn (RI.01 to RI.8) under NETWORK, INPUT MODULES, and 1 (NETWORK DI MOD). The status values can be used in the configuration by connecting the corresponding logic variables NDIn-1 to NDIn-16.

2. On the SX Tool the Reliability Status of each digital input module can

be seen on bits X1 to X8 at Item NDISTA (RI.9). These status indications can be used for backup control strategies in the case of a transmission failure by using the corresponding logic variables (NDIU1 to NDIU8) in the PLC. The Reliability Status will be set to 1 (Unreliable) when the DX controller does not receive a new value over the network within a period of approximately 200 seconds.

GX Labels

Network Analog Output Configuration (Version 3 Only)

Source Points (Outputs)

NDIn-m The current value of the Network Digital Input.

NDIUn A 1 when the digital input module is unreliable.

Destination Points (Inputs)

None.

The controller has 16 network analog output modules, each of which can transmit a numerical value to another controller on the same LONW

ORKS

N2 Bus. The network analog output module receives its value from a connection to a numeric Item in the same controller. Each network analog output module, if configured, sends its value to up to 16 destinations which are, in fact, network analog input modules in other controllers on the same network. A maximum of 30 Version 3 controllers can be connected to one LONW

ORKS

N2 Bus.

For each network analog output module one must define:

• User Tag Name and Description

• Network Analog Output Units (SX Only)

• up to 16 destinations (controller address and network input module

number)

• source of the output value

Configuration Guides—DX-9100 Configuration Guide

User Tag Name and Units

Via the GX Tool

Select PM, then Network Analog Output, and place the NAOn on the screen. Select NAOn and Data. Enter the User Name and Description in the Data Window. The Units number is automatically set by the GX Tool.

Via the SX Tool

When defining a network analog output module, it is necessary to enter the units of the NAO in Item NAOnDIM (RI.03) under NETWORK (Key 8), OUTPUT MODULES, and 2 (NETWORK AO MODn) (n = 1-16). There is only one unit used by the DX-9100, which is number 55. It is also necessary to change Item NAON (RI.02) under NETWORK and GENERAL MODULE. This Item must contain the number (0 to 16) of NAOs used in the configuration. These Items are automatically set by the GX Tool.

NAO Destinations

NAO Source

Via the GX Tool

Select NAOn and Data. In the field Destination #1 enter a destination controller address (1-255) and a network input number (1-16) within the destination controller. Continue entering destinations as required up to the limit of 16. Only enter the address of controllers, which will be connected, to the same LONW

N2 Bus and use a network analog input number in

ORKS

a destination controller only once in the configuration.

Via the SX Tool

Destinations are configured in Items NAOn>1 to NAOn>16 (RI.04 to RI.19) under NETWORK (Key 8), OUTPUT MODULES, and 2 (NETWORK AO MODn) (n = 1-16). Enter the Destination Input number (NAI) (1-16) and Destination Controller Address (1-255). An Input number of 0 cancels the destination.

Via GX Tool

Expand NAOn to show the input NAOnAO@. Expand the source module with the desired output numeric Item and make the connection. The connection source may be seen in the NAO Data Window in the field Source Point.

Via SX Tool

Connections are defined in Items NAOn@ (RI.20) under NETWORK (Key 8), OUTPUT MODULES, and 2 (NETWORK AO MODn) (n = 1-16). Enter a numeric Item address.

Configuration Guides—DX-9100 Configuration Guide

NAO Note

On the SX Tool the numeric value of the network analog outputs can be read at Items NAOnOUT (RI.01) under NETWORK, OUTPUT MODULES, and 2 (NETWORK AO MODn) (n = 1-16).

GX Labels

Network Digital Output Configuration (Version 3 Only)

Source Points (Outputs)

None.

Destination Points (Inputs)

NAOn@ The numeric connection to control a Network Analog Output.

The controller has 8 network digital output modules, each of which can transmit 16 digital status values to another controller on the same LONW

N2 Bus. Each of the 16 digital values in the digital output

ORKS

module receives its status from a logic variable in the same controller. Each network digital output module, if configured, sends its 16 digital status values as a block to up to 16 destinations which are, network digital input modules in other controllers on the same network. A maximum of 30 Version 3 controllers can be connected to one LONW

ORKS

N2 Bus.

For each network digital output module one must define:

• User Tag Name and Description

• Network Digital Output Type (SX Only)

• up to 16 destinations (controller address and network input module

number)

User Tag Name and Type

• sources of the 16 digital status values

Via the GX Tool

Select PM, then Network Digital Output, and place NDOn on the screen. Select NDOn and Data. Enter the User Name and Description in the Data Window. The Type number is automatically set by the GX Tool.

Via the SX Tool

When defining a network digital output module it is necessary to enter the type of NDO in Item NDOnTYP (RI.03) under NETWORK (Key 8), OUTPUT MODULES, and 1 (NETWORK NDO MODn) (n = 1-8). There is only one type used by the DX-9100, which is number 83. It is also necessary to change Item NDON (RI.01) under NETWORK and GENERAL MODULE. This Item must contain the number (0-8) of NDOs used in the configuration. These Items are automatically set by the GX Tool.

Configuration Guides—DX-9100 Configuration Guide

NDO Destinations

Via the GX Tool

Select NDOn and Data. In the Data Window, select Data-2 to go to page 2. In the field Destination #1 enter a destination controller address (1-255) and a network input number (1 to 8) within the destination controller. Continue entering destinations as required up to the limit of 16. Only enter the address of controllers that will be connected to the same LONW

N2 Bus and use a network digital input number in a

ORKS

destination controller only once in the configuration. All 16 source points will be sent as a block to each destination defined.

Via the SX Tool

Destinations are configured in Items NDOn>1 to NDOn>16 (RI.04 to RI.19) under NETWORK (Key 8), OUTPUT MODULES, and 1 (NETWORK DO MODn) (n = 1-8). Enter the Destination Input number (NDI) (1-8) and Destination Controller Address (1-255). An Input number of 0 cancels the destination.

NDO Sources

NDO Note

GX Labels

Via GX Tool

Expand NDOn to show the inputs NDOn-1@ to NDOn-16@. Expand the source module with the desired output logic variable and make the connection. The connection sources may be seen in the NDO Data Window in the fields Source bit #1 to Source bit #16.

Via SX Tool

Connections are defined in Items NDOn-1@ to NDOn-16@ (RI.20 to RI.35) under NETWORK (Key 8), OUTPUT MODULES, and 1 (NETWORK DO MODn) (n = 1-8). Enter a logic variable index byte and bit number.

On the SX Tool, the 16 status values of each of the 8 network digital output modules can be read at Items NDOn (RI.01) under NETWORK, OUTPUT MODULES, and 1 (NETWORK DO MODn) (n = 1-8).

Source Points (Outputs)

None.

Destination Points (Inputs)

NDOn-m@ The logic connection to control a Network Digital Output.

Configuration Guides—DX-9100 Configuration Guide

Programmable Function Module Configuration

The DX-9100 provides twelve programmable function modules that are sequentially executed each second. The module’s function, inputs, and outputs depend on the algorithm assigned to it. The assignment is made by programming the module to correspond to the algorithm. Once the PM is defined to perform a specific function, the remaining entries of the module can be defined to achieve the desired output.

Parameter Tags

Each of the twelve programmable function modules has a set of generic parameters, each with a PM Tag.

Each of the available algorithms has a specific set of parameters, each with an algorithm tag (Alg. Tag).

When an algorithm is assigned to a programmable function module, a parameter has two tags:

• one PM Tag, which represents the generic function in the

programmable function module

• one Alg. Tag, which represents the specific function of the parameter

in the assigned algorithm

For example, the process variable connection in a PID control algorithm assigned to Programmable Function Module 1 has a generic tag, PM1I1@. In Algorithm 1 (PID controller) this same parameter has the tag PV@. Both tags are listed in the Item list for the algorithms; one as PM Tag and the other as Alg. Tag.

Note: In the GX Tool, algorithm tags are used exclusively. When

mapping Items to a BAS, such as Metasys PM tags are used.

Control Algorithm Configurations

The DX-9100 provides four control algorithms:

• PID Controller

• On/Off Controller

• Heating/Cooling PID Controller (Dual PID)

• Heating/Cooling On/Off Controller (Dual On/Off)

Each of these algorithms can be used in any one of the twelve programmable function modules.

The algorithms have a number of different operating modes, which are a function of operating parameters and digital connections.

Each control module operates from its Working Setpoint (WSP), which is a resultant value calculated by the controller from the Reference Variable (RV), the Local Setpoint (LSP), the Remote Setpoint (RSP), the Standby Mode Bias (BSB), and the Off Mode Bias (BOF).

The algorithm then compares the Working Setpoint (WSP) with the Process Variable (PV) to generate an output (OCM).

Configuration Guides—DX-9100 Configuration Guide

• Comfort mode (or Occupied mode) is the working mode of the

algorithm to obtain the desired control typical during occupancy. The output is calculated by the control algorithm using as working setpoint the value:

WSP = RV * (LSP + RSP)

This mode is active when both Standby and Off modes are disabled.

• When operating in Standby mode the controller setpoint may be

reduced or increased when compared with the Comfort mode setpoint. The output is calculated by the control algorithm using as working setpoint the value:

WSP = RV * (LSP + RSP) + BSB

This mode is active when the standby module control connection is a Logic 1 and the Off mode is disabled.

The standby bias is a signed number, expressed in the same units as the PV.

• Off mode (Unoccupied mode) is similar to the Standby mode, but the

setpoint may be further reduced or increased. The output is calculated by the control algorithm using the following function:

WSP = RV * (LSP + RSP) + BOF

This mode is active when the Off mode control connection is a Logic 1.

The off bias is a signed number, expressed in the same units as the PV.

In the Off mode, the output low limit of the controller is not used and the output can fall to 0.

If both Standby and Off modes are active, the control module uses the Off mode working setpoint.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Before establishing the mode, you must first set the PM type to Control and then to the appropriate type. Click on PM in the toolbar, select Control, then PID, On/Off, Dual PID, or Dual On/Off, and position the module (box) on the screen. Select the module and then Data to call up the Data Window. Enter control parameters and modes.

To go to page 2, click on Data 2. At Standby Bias (BSB) or Off mode Bias (BOF), enter a value to bias the WSP. For Dual PID or Dual On/Off modules, enter values for each loop at Stdby Bias #1 (BSB1), Off Bias #1 (BOF1), Stdby Bias #2 (BSB2), and Off Bias #2 (BOF2).

To define the mode connections, expand source and destination modules. Position the cursor on the source point. Press the mouse button, and while keeping it pressed, drag the cursor to SB@. Release the mouse button to make the connection. For Off mode, make a similar connection between the respective source point and OF@.

When the connected logic variable is in a 1 state, the value entered will be used to calculate the WSP of the module. The WSP is always the active setpoint of the module.

Via the SX Tool

Define the PM type under Program Modules PMnTYP (RI.00):

1 = PID Controller

2=On/Off

3=Dual PID

4 = Dual On/Off

Then set the modes of operation under Program Modules:

PMnOF@ (RI.14) defines the Off mode control logic connection.

PMnSB@ (RI.15) defines the Standby mode control logic connection.

BSB1 (RI.30) defines the bias value during Standby mode in Loop 1.

BOF1 (RI.31) defines the bias value during Off mode in Loop 1.

For Dual PID and Dual On/Off only:

BSB2 (RI.47) defines the bias value during Standby mode in Loop 2.

BSF2 (RI.48) defines the bias value during Off mode in Loop 2.

The mode status of the controller can be read at Item PMnST (RI.72) as follows:

X13 = Standby Mode (SB)

X12 = Off Mode (OF)

Configuration Guides—DX-9100 Configuration Guide

Remote Mode

In Remote mode, the local setpoint is excluded from the calculation of the working setpoint, and the WSP cannot be modified from the front panel of the controller.

Via the GX Tool

Select the defined PMn, then Data in the module menu. At the Remote mode: (0 = N) = field, enter 0 or 1:

If 0, the module will calculate from: WSP = RV * (LSP + RSP) + bias

If 1, the module will calculate from: WSP = RV * (RSP) + bias

Via the SX Tool

Under Program Modules, select the PID Module and set bit X8 in Item PMnOPT (RI.01):

X8 = 0 No Remote mode.

X8 = 1 Remote mode enabled.

Minimum/ Maximum Working Setpoint

For the DX-9100, Version 1.1 or later, the calculated WSP value cannot lie outside of limits set either by numeric connections or entered parameters. If there are no connections, the values entered at Minimum Working Setpoint and Maximum Working Setpoint will be used. When modifying the WSP from the front panel of the controller, it is not possible to set a value for WSP, which lies outside of the set limits.

Via the GX Tool

Select the defined PMn. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Minimum WSP (MNWS) and Maximum WSP (MXWS) fields, enter values to not exceed the working setpoint. To use source points for MNWS and MXWS, connect the respective source points to MNWS@ and MXWS@. The values of source points will take priority over entered values.

Via the SX Tool

Under Program Modules, select the PID modules and set the following:

MNWS@ (RI.22) defines numeric connection for Min. WSP.

MNWS (RI.35) defines the numeric value of Min. WSP.

MXWS@ (RI.23) defines the numeric connection for Max. WSP.

MXWS (RI.42) defines the numeric value for Max. WSP.

Configuration Guides—DX-9100 Configuration Guide

Output Forcing Actions

Commands from a BAS or connections to logic variables may override the output calculated by the control algorithm, forcing it to a preprogrammed level of 0 or 1 for On/Off algorithms and 0-100% for PID algorithms. While forcing is active, the module will stop calculating until forcing is disabled. Each forcing condition is associated with an output forcing level. The possible forcing conditions, ordered in priority, are:

• Shutoff mode (BAS only)

• Startup mode (BAS only)

• External Forcing mode

The function of each mode may be individually enabled in each control module.

The configuration of startup and shutoff are also described under Supervisory Mode Control Settings (General Module).

External Forcing

With External Forcing mode, the control module output will assume a configured forcing level between 0 and 100% for PID algorithms and of 0 or 1 for On/Off algorithms, overriding the output limits of the control module.

Via the GX Tool

Expand source and destination modules. Make a connection between the source point and EF@ in the destination model. When the connection is a 1, the output will go to the value specified at ExtForce Out Level (provided Shutoff and Startup are not active).

Select the defined PMn. Then select Data in the module menu. For a PID module, at the ExtForce Out Level (EFL) field, enter the desired level as a number in percent of output. For On/Off modules at the ExtForce Out Level field enter 0 for Off and 1 for On.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

External forcing is a software connection, which is configured by entering the source address of the selected logic variable under Program Modules, at the Alg. Item location EF@ (RI.17) of the defined PID module.

The forcing level for PID controllers is read and modified at the Item location EFL (RI.59) of the defined PID module.

The forcing level for On/Off controllers is entered at Item location OPT, bit X6:

X6 = 1 = On

X6 = 0 = Off

The status of the modes can be seen at Alg. Item PMnST (RI.72) follows:

X9 = Shutoff mode (SOFF)

X10 = Startup mode (STUP)

X11 = External Forcing (EF)

Programmable Module Notes

1. The WSP, off mode bias, and standby bias can be read and modified by the DX front panel. See Display Panel and Keypads in the

DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. For control module operations refer to Algorithms 1-4 in this document.

3. For details of the Hold mode and Computer mode, refer to Supervisory Mode Control Settings (General Module) later in this document.

4. When the PID algorithm is using integral action, forcing actions to either a PID or a connected AO will modify the integral term (I Term) such that the internally calculated output of the control module is equal to the forced value. This provides bumpless transfer when the forcing is removed. In other words when the forcing is removed, the output does not immediately change, but integrates to the new control output value. If there is another module between the PID module and the AO (a high selected, for example) and the AO is overridden, the I Term will not be modified.

Configuration Guides—DX-9100 Configuration Guide

Control Algorithm Theory

The DX executes all modules and all of its calculations once every second. The calculations below assume that the output low/high limits are 0 to 100.

Proportional Control Algorithm

HHDA HDA

PB@

PV@

RV@

RS@

OF@

SB@

RA@

EF@

LSP

REM

Supervisory Modes:

LDA

F (Modes,

BSB,BOF)

CMP STAE SOFE

Computer

CML EF STA SOF HOLDLLDA CMH

WSP

Start Up Shut Off

f=(PB,TI,TD,EDB)

Limiti ng

And

Forcing

Hold

HIL

LOL

Figure 7: Control Module Block Diagram

The PID algorithm is defined by the following equations:

The standard proportional control algorithm is as follows:

P. Output = (100/PB) * Deviation + output bias (OB)

Where:

OCM

Output

Dxcon007

P. Output = proportional output of control module in %

PB = Proportional Band, defined as the amount of change in the

process variable, that produces a change of 0 to 100 on the output of the control module

Deviation = the difference (error) of the Process Variable (PV) and the

Working Setpoint (WSP)

With proportional control, the deviation (or control error) is at zero only when the output bias value matches the output value required to attain the setpoint under the actual load conditions.

Configuration Guides—DX-9100 Configuration Guide

Integral Control Algorithm

When using the integral (reset action) in a PID control module, the proportional output is increased or decreased by the integral output which is determined through the following mathematical relationship:

Derivative Control Algorithm

I. Output

= I. Output

(t)

+ (Proportional Output * TI *[1/60])

(t-1)

Where:

I. Output

(t)

(t-1)

= Current integral output

= Previous integral output

TI = Reset action, expressed in repeats of proportional

control response per minute

Reset action is used to compensate for the deviation (or error) in proportional control and reduces the deviation towards zero over time.

The integral computation is stopped as soon as the control module output calculates its high or low output limits.

An integral time of zero disables the integral action.

The output of a PI algorithm is:

PI Output = P. Output + I. Output

Although the PI Output is normally limited to 0-100, the P. Output and I. Output can individually be a negative number.

When using the derivative action (rate action) in a PID control module, the 0-100 output is modified through the following mathematical calculation:

D. Output

= [(PV

(t)

- PV

) * CD] + (D. Output

(t-1)

* BD)

Where:

D. Output

(t)

(t-1)

= Current Derivative Output

(t)

= Previous Derivative Output

(t-1)

= Current Process Variable in % of input range

= Previous Process Variable in % of range

BD = (60 * TD) / [4 + (60 * TD)]

CD = 120 * TD * (1 - BD) * 100/PB

TD = Rate action: a time constant determining the rate of

decay of the derivative output to ensure stable control.

Rate action is the braking response in case approach to the setpoint is too rapid and may pass, or the accelerating response in case the deviation from the setpoint is too rapid and may not be corrected quickly enough by PI control.

Configuration Guides—DX-9100 Configuration Guide

Algorithm 01 PID Control Module

Most commercial HVAC applications will not require derivative action. A rate action equal to zero disables the derivative term.

The output of a PID algorithm is:

PID Output = P.Output + I.Output + D.Output

Setting Supervisory Control Options

These options are a series of parameters that define how the PID Control Module operates and reacts to BAS commands. For more information, refer to Supervisory Mode Control Settings (General Module) later in this document.

Via the GX Tool

Select the defined PID module. Then select Data in the module menu.

At the Ena Shutoff: 0=N field, enter a 1 to enable this function.

At the Shutoff Out Level field, enter a value for the output to go to if Ena Shutoff = 1 and the BAS has set Shut off in the controller.

At the Ena Startup: 0=N field, enter a 1 to enable this function. At the Startup Out Level= field, enter a value for the output to go to if Ena Startup = 1 and the BAS has set Startup in the controller.

At the Ena Off Trans: 0=N field, enter a 1 if the module is required to operate in Off mode when the BAS has set Shutoff and the process variable is below the Off mode working setpoint (WSP). This is only used in reverse acting modules (negative proportional band) for heating applications for low temperature protection.

Via the SX Tool

These parameters are defined under Program Modules at PM Item PMnOPT (RI.01) of the PID module, with the following bit structure:

X1 = 1 SOFE Enable Shutoff mode from BAS

X3 = 1 STAE Enable Startup mode from BAS

X9 = 1 SOTO Enable Shutoff to Off Change

Configuration Guides—DX-9100 Configuration Guide

Process Variable Connection PV@

The Process Variable (PV) is an analog value connection to the control module. When the process variable is not equal to the setpoint, the controller responds by changing its output value in accordance with the PID parameters.

Via the GX Tool

Make a connection between the source point and PV@ in the destination control module.

Via the SX Tool

Under Program Modules, configure the software connection by entering the source address of the selected process variable at the PV@ Item (RI.10) location in the defined PID module.

Remote Setpoint Connection RS@

Reference Variable Connection RV@

The Remote Setpoint (RSP) is an analog variable in the control module, in units of PV, which produces a bias in the local setpoint. If the input is not connected, the controller will use the default value 0.

WSP = RV (RSP + LSP) + (bias)n

Via the GX Tool

Make a connection between the source point and RS@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected remote setpoint at the RS@ Item (RI.11) location in the defined PID module.

The Reference Variable (RV) is an analog variable to the control module, which causes the control module to perform as a ratio controller. Its effect is a multiplier in the working setpoint calculation. If the input is not connected, the controller will use the default value 1.

WSP = RV (RSP + LSP) + (bias)n

Via the GX Tool

Make a connection between the source point and RV@ in the destination control module.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

The software connection is configured by entering the source address of the selected reference variable at the RV@ Item (RI.12) location in the defined PID module.

Proportional Band

The proportional band is a number that defines the action and sensitivity of the control module. A negative number defines a reverse acting control module; an increase of the process variable produces a decrease in the output signal. A positive number defines a direct acting control module; an increase of the process variable produces an increase in the output signal.

The number itself is an analog input connection (PB@) or value (PB) that is expressed as a percentage of the process variable range. When the process variable is one of the eight analog inputs to the DX-9100 Controller, the PV range is the range of the active analog input or the control range of the passive analog input. Otherwise, the range defaults to 0-100 (including all XP analog inputs). The connection is used for an application requiring a dynamic proportional band, and if this input is not connected, the controller will use the proportional band value of PB.

The number itself defines the percentage of the process variable range change that will produce a full output signal change. For example, if the process variable has a control range of 0 to 100, a proportional band of 2% indicates that a change of 2 in the process variable will cause the control module output signal to change by 100%. If the process variable range is 0-40, a proportional band of 10% indicates that a change of 4 in the process variable will cause the control module output signal to change by 100%.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Proport. Band (PB) field, enter the required value.

Alternatively, make a connection between the source point and PB@ of the control module.

Via the SX Tool

Under Program Modules, select the PID module. The software connection is configured by entering the source address of the selected proportional band at the PB@ Item (RI.13) location in the defined PID module; or, enter a value for the proportional band at the PB Item (RI.27) location.

Configuration Guides—DX-9100 Configuration Guide

Reverse Action Connection RA@

The Reverse Action Connection is a logic input to the control module, which changes its action from direct to reverse or vice versa.

If the input is not connected, the controller uses the default value 0 and the function is disabled such that the defined action in PB is always used. The reverse action connection should not normally be used when the controller is configured as symmetric.

The DX front panel will not show that the PB has been reversed by this connection.

Via the GX Tool

Make a connection between the source point and the RA@ point of the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected reverse action logic variable at the RA@ Item (RI.16) location in the defined PID modules.

Output Bias

The Output Bias Connection or OB@ is an analog input to the control module which biases the value of the output. If the input is not connected, the controller uses the output bias value OB. This option is normally used in a proportional-only control module where the value of OB determines the output of the control module when the PV is equal to the WSP.

Via the GX Tool

Make a connection between the source point and the OB@ destination point.

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Output Bias (OB) field, enter a value from 0 to 100. In a P-only controller, this will be the output value when PV = WSP.

Via the SX Tool

Configure the software connection by entering the source address of the selected output bias at the OB@ Item (RI.20) location. Alternatively, enter the output bias value at the OB Item (RI.34) location.

Configuration Guides—DX-9100 Configuration Guide

Local Setpoint

The local setpoint or LSP is a value that represents the basic setpoint of the control module. It is a number that should be within the range of the process variable. The LSP is disabled (ignored) in Remote mode. When a WSP adjustment is made from the front panel, it is the LSP that is actually changed according to the formula below:

WSP = RV (RSP + LSP) + bias

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Local Setpoint (LSP) field, enter the setpoint of the module.

To enable the Remote mode, enter a 1 at the Remote mode: 0 = N field. If 1, the setpoint will be calculated as follows:

WSP = RV (RSP) + bias

Via the SX Tool

Under Program Modules, select the PID module and enter a value for the local setpoint at the LSP Item (RI.26) location. To enable the Remote mode, set Alg. Item REM (RI.01), bit X8 to 1.

Reset Action

Reset action or TI is a number that defines the integration time for proportional-integral type control modules and is expressed in repeats per period of 1 minute, between 0 and 60, with one decimal place. The integral time Tn may be computed from this number using the formula: Tn = 1/TI. Reset action should normally be set to 0 for symmetrical action controllers.

Note: To clear the reset action from the DX front panel, set the value to

any negative number.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Reset Action (TI) field, enter a value between 0 and 60.

Via the SX Tool

Under Program Modules, select the PID module and enter a value for the reset action at the TI Item (RI.28) location. A zero number and all negative numbers will disable the integral action of the controller.

Configuration Guides—DX-9100 Configuration Guide

Rate Action

Rate action or TD defines the derivative action decay time parameter and is entered in minutes, between 0 and 5, with one decimal place. Rate action should normally be set to 0 for symmetrical action controllers.

Note: To clear the rate action from the DX front panel, set the value to

any negative number.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Rate Action (TD) field, enter a value between 0 and 5.

Via the SX Tool

Under Program Modules, select the PID module and enter a value for the rate action at the TD Item (RI.29) location. A zero number and all negative numbers will disable the rate action of the controller.

Output High Limit

Output Low Limit

The High Limit or HIL is a number in percent of the output, which defines a high limit value for the control module output. The default value is 100, and must always be higher than the low limit.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Out High Lmt (HIL) field, enter the high limit in terms of percentage.

Via the SX Tool

Enter the high limit value at Item HIL (RI.36) in the defined PID module.

The Low Limit or LOL is a number in percent of the output, which defines a low limit value for the control module output. The default value is 0, and must always be lower than the high limit. The lower limit is overridden when the control module is in Off mode and the output falls to 0.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Out Low Lmt (LOL) field, enter the lower limit in terms of percentage.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Enter the low limit value at Item LOL (RI.37) in the defined PID module.

Output

100%

HIGH LIMIT

(HIL)

BOF

BSB

Output

100%

HIGH LIMIT

(HIL)

BOF

BSB

Deviation Alarm Values

LOW LIMIT

(LOL)

0 %

Off

Standby

Comfort

Process Var iab le

LOW LIMIT

(LOL)

Standby

Comfort

Process Var iab le

Off

dxcon008

Figure 8: Reverse Acting Controller (Negative PB)/

Direct Acting Controller (Positive PB)

The deviation alarm values define the values which, when exceeded by the difference between the process variable and the working setpoint, will automatically generate a deviation alarm.

A low low deviation alarm indicates that the process variable is lower than the working setpoint by more than the low low deviation alarm value.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev L. L. Limit (DLL) field, enter a value in units of PV.

Via the SX Tool

The low low deviation alarm value can be entered at Alg. Item DLL (RI.41).

A low deviation alarm indicates that the process variable is lower than the working setpoint by more than the low deviation alarm value.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev Low Limit (DL) field, enter a value in units of PV.

Via the SX Tool

The low deviation alarm value can be entered at Alg. Item DL (RI.40). A high deviation alarm indicates that the process variable exceeds the working setpoint by more than the high deviation alarm value.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev High Limit (DH) field, enter a value in units of PV.

Via the SX Tool

The high deviation alarm value can be entered at Alg. Item DH (RI.39).

A high high deviation alarm indicates that the process variable exceeds the working setpoint by more than the high high deviation alarm value.

Enable PID to P

Via the GX Tool

Select the PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev H. H. Limit (DHH) field, enter a value in units of PV.

Via the SX Tool

The high high deviation alarm value can be entered at Alg. Item DHH (RI.38).

Note: Except for the PID to P changeover described next, deviation

alarms do not affect the control program operation unless the associated logic variables are used in other programmable modules. Deviation alarms do not light the LED on the DX front panel.

If a PID control module is in a high high or low low deviation alarm condition, it will operate as a proportional-only control module when Enable PID to P is set. The Enable PID to P change on deviation alarm feature sets the integral term to zero when the process variable is far from setpoint, and the controller will convert from a PI or PID controller to a proportional only controller. This is done to prevent wind-up of the integration term when the process variable is outside of the normal control range.

Configuration Guides—DX-9100 Configuration Guide

HHDA

P Only

WSP

PI or PID

LLDA

PI or PID

Term Frozen

P Only

EDB

Time

EDB

dxcon010

Figure 9: Enable PID to P

Via the GX Tool

Select the defined PID. Then select Data in the module menu. At the Ena PID to P: 0=N field, entering a 1 will enable this feature.

Via the SX Tool

This parameter is defined through Program Modules at PM Item PMnOPT (RI.01) in the PID module, with the following bit structure:

X7 = 1 PIDP Enable PID to P change automatically on the

Deviation Alarm (LLDA or HHDA).

Error Deadband

The error deadband is defined in % of the proportional band PB. When the process error (PV-WSP) is within this deadband, the integral term is frozen. The deadband is applied above and below setpoint and in the units of the PV is equal to:

(EDB/100) * (PB/100) * Range of the PV (AIn)

(EDB/100) * (PB/100) * 100 (all other numeric values)

Via the GX Tool

Select the defined PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Err Dadband (EDB) field, enter the value for the desired error deadband.

Via the SX Tool

The error deadband is entered in Item EDB (RI.33) in the PID Module.

Configuration Guides—DX-9100 Configuration Guide

Symmetrical Transfer Function

The control algorithm may be configured to operate as a P controller with a symmetrical transfer function, where the comfort cooling setpoint is calculated by adding a constant symmetry band to the comfort heating setpoint and the control module action is reversed. When the control module is in Standby or Off mode, there is a shift of the setpoints as shown in the figure below. For correct symmetrical operation, the controller must normally be set up as a reverse acting (heating) proportional controller, with no integral or derivative action, and the reverse action connection RA@ is not used.

Use this option when you need a single setpoint for two control loops. Use a dual module for two setpoints.

Via the GX Tool

Select the defined PID. Then select Data in the module menu. At the Ena Symm mode: 0=N field, enter 1 to enable this feature.

Then select Data-2 to go to page 2, and at the Symmetry Band (SBC) field, enter a value to add to the setpoint to determine the cooling setpoint.

Via the SX Tool

This symmetric operation is enabled under Program Modules at PM Item PMnOPT, bit X5 (RI.01) in the PID module. The symmetry band constant is entered at Item SBC (RI.32).

BOF

BSB

Process Variable

Off

Standby

dxcon011

Output

100 %

HIGH LIMIT

(HIL)

LOW LIMIT

(LOL)

0 %

BOF

Off

Standby

BSB

Comfort

SBC

Comfort

Figure 10: Controller with Symmetric Operation

(Proportional Controller Only)

Configuration Guides—DX-9100 Configuration Guide

Notes

1. The output, biases, PB, rate, and reset parameters can be read and modified from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. With the SX Tool, the various outputs of the control algorithm can be seen at Items OCM (RI.60), WSP (RI.61), PV (RI.62), RSP (RI.66), and RV (RI.67).

3. The logic status of the control algorithm can be seen at PM Item PMnST (RI.72) with the SX Tool, with the following bit structure:

X1 = 1 CML Controller Output at Low Limit

X2 = 1 CMH Controller Output at High Limit

X3 = 1 FORC Force-back to OCM from AO is active.

FORC is set when the connected AO (analog output) is in Hold mode. The value of the AO is also forced back, or set into the OCM, to provide bumpless override control for a PID module with an integral action.

X5 = 1 LLDA Low Low Deviation Alarm

X6 = 1 LDA Low Deviation Alarm

X7 = 1 HDA High Deviation Alarm

X8 = 1 HHDA High High Deviation Alarm

X9 = 1 SOF Shutoff mode Active

X10= 1 STA Startup mode Active

X11= 1 EF External Forcing Active

X12= 1 OF Off Mode Active

X13= 1 SB Standby Mode Active

X14= 1 RA Reverse Action Mode

X15 = 0 HEAT (Cooling Controller or PV above center of

SBC in Symmetric Operation)

X15 = 1 HEAT (Heating Controller or PV below center of

SBC in Symmetric Operation)

Status Items can be used as logic (digital) connections using the GX Tool or SX Tool.

Configuration Guides—DX-9100 Configuration Guide

GX Labels

Source Points (Outputs)

PMnCMH A 1 when a control module’s output is equal to its output

high limit.

PMnCML A 1 when a control module’s output is equal to its output

low limit.

PMnCMP A 1 when the control module’s WSP is being overridden by

a BAS (Computer mode).

PMnEF A 1 when this control module is being externally forced.

PMnHDA A 1 when the difference PV - WSP is larger than the high

deviation alarm value.

PMnHEAT A 1 when, in a symmetric control module, the PV is below

the center of the symmetry band, and a 0 when above center; or a 1 when, in a dual control module, Loop 1 is active.

PMnHHDA A 1 when the difference PV - WSP is larger than the high

high deviation alarm value.

PMnHLD A 1 when the program module is in the Hold mode, being

overridden by the SX Tool or a BAS.

PMnLDA A 1 when the difference WSP - PV is larger than the low

deviation alarm value.

PMnLLDA A 1 when the difference WSP - PV is larger than the low

low deviation alarm value.

PMnLSP The value of the local setpoint. (This value is changed

when adjusting the WSP from the DX front panel.)

PMnOCM The value of the PID control module output in percent;

either a 1 or 0 for an On/Off control module.

PMnSOF A 1 when this control module is in the Shutoff mode, which

occurs when enable shutoff = 1 and the BAS has commanded it On.

PMnSTA A 1 when this control module is in the Startup mode, which

occurs when enable startup = 1 and the BAS has commanded it On.

PMnWSP The value of a control module working setpoint.

Configuration Guides—DX-9100 Configuration Guide

Destination Points (Inputs)

EF@ The connection to the external forcing point of control

modules.

MNWS@ The connection to the minimum working setpoint of a

control module. The WSP cannot be adjusted below this value.

MXWS@ The connection to the maximum working setpoint of a

control module. The WSP cannot be adjusted above this value.

OB@ The connection of an output bias value of a PID module.

OF@ The connection to the off-mode source point of a control

module.

PB@ The connection to proportional band, which replaces the

value PB if there is a connection.

PV@ The connection to the process variable of a PID or an

On/Off.

RA@ The connection to the reverse action point of a control

module.

RS@ The connection to a remote setpoint, which is used in the

calculation for the working setpoint.

RV@ The connection to reference variable which is a multiplier

in the calculation for the working setpoint.

SB@ The connection to the standby source point of a control

module.

Configuration Guides—DX-9100 Configuration Guide

Algorithm 02 On/Off Control Module

Setting Supervisory Control Options

These options are a series of parameters that define how the On/Off Control Module operates and reacts to BAS commands.

Via the GX Tool

Select the defined On/Off module. Then select Data in the module menu. At the Ena Shutoff: 0=N field, enter a 1 to enable this function.

At the Shutoff Out Level field, enter 0 for Off and 1 for On. It will go to the specified state if Shutoff is enabled and the BAS has set Shutoff in the controller.

At the Ena Startup: 0=N field, enter a 1 to enable the function.

At the Startup Out Level field, enter 0 for Off and 1 for On. It will go to the specified state if Startup is enabled, and the BAS has set Startup in the controller.

Via the SX Tool

These parameters are defined under Program Modules at PM Item PMnOPT (RI.01) of the On/Off module, with the following bit structure:

X1 = 1 SOFE Enable Shutoff mode from BAS

Process Variable Connection PV

X2 SOFL 0=0, 1=1 Shutoff out level

X3 = 1 STAE Enable Startup mode from BAS

X4 STAL 0=0, 1=1 Startup out level

Via the GX Tool

Make a connection between the source point and PV@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected process variable at Alg. Item PV@ (RI.10) in the defined On/Off module.

Configuration Guides—DX-9100 Configuration Guide

Remote Setpoint Connection RS@

WSP = RV (RSP + LSP) + bias

Via the GX Tool

Make a connection between the source point and RS@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected remote setpoint at Alg. Item RS@ (RI.11) in the defined On/Off module.

Reference Variable Connection RV@

Reverse Action Connection RA@

WSP = RV (RSP + LSP) + bias

Via the GX Tool

Make a connection between the source point and RV@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected reference variable at Alg. Item RV@ (RI.12) in the defined On/Off module.

The Reverse Action connection or RA@ is a logic input to the control module which changes its action from direct to reverse or vice versa. If the input is not connected, the controller will use the default value 0 and the function is disabled such that the defined action in ACT is always used.

Note: When reverse action is a logic 1, the DX front panel PB will not

show that it has been reversed.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Make a connection between the source point and RA@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected reverse action logic variable at Alg. Item RA@ (RI.16).

Local Setpoint

Action Mode

The Local Setpoint or LSP is a value that represents the basic setpoint of the control module. It is a number that should be within the range of the process variable. The LSP is disabled when Remote mode is enabled. When a WSP adjustment is made from the front panel, it is the LSP that is actually changed according to the formula below:

WSP = RV (RSP + LSP) + bias

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Local Set Pt (LSP) field, enter the setpoint of the module.

Via the SX Tool

Under Program Modules, select the On/Off module and enter a value for the local setpoint at Alg. Item LSP (RI.26).

The Action mode or ACT is a value that defines the action of the control module. A -1 will define a reverse acting control module; a decrease of the process variable below WSP will cause the output to switch to On (1). A +1 will define a direct acting control module; an increase of the process variable above WSP will cause the output to switch to On (1).

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Action (ACT) field, enter 1 or -1.

Via the SX Tool

Under Program Modules, select the On/Off module and enter 1 or -1 as the Action mode at Alg. Item ACT (RI.27).

Configuration Guides—DX-9100 Configuration Guide

Differential

The differential or DIF is a number that defines the change in process variable required to initiate Off transitions once the output is On. It is used to eliminate short-cycling.

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Differential (DIF) field, enter the amount of change to cause an Off transition in the units of the PV.

Via the SX Tool

Configure the software by entering a value for the selected differential logic variable at Alg. Item DIF (RI.28) in the On/Off module.

OCM = 0

WSP

Deviation Alarm Values

OCM = 1

DIF

OCM = 0

dxcon012

WSP

DIF

OCM = 1

Figure 11: Reverse Acting Controller/Direct Acting Controller

The deviation alarm values define the value which, when exceeded by the difference between the process variable and the working setpoint, will automatically generate a deviation alarm.

A low low deviation alarm indicates that the process variable is lower than the working setpoint by more than the low low deviation alarm value.

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev L. L. Limit (DLL) field, enter a value in units of PV.

Via the SX Tool

Enter the low low deviation alarm value at Alg. Item DLL (RI.41).

A low low deviation alarm indicates that the process variable is lower than the working setpoint by more than the low deviation alarm value.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev Low Limit (DL) field, enter a value in units of PV.

Via the SX Tool

Enter the low deviation alarm value at Alg. Item DL (RI.40).

A high deviation alarm indicates that the process variable exceeds the working setpoint by more than the high deviation alarm value.

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev High Limit (DH) field, enter a value in units of PV.

Via the SX Tool

Enter the high deviation alarm value at Alg. Item DH (RI.39).

Symmetrical Transfer Function

A high high deviation alarm indicates that the process variable exceeds the working setpoint by more than the high deviation alarm value.

Via the GX Tool

Select On/Off. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev H. H. Limit (DHH) field, enter a value in units of PV.

Via the SX Tool

Enter the high high deviation alarm value at Alg. Item DHH (RI.38).

Note: Deviation alarms do not affect the control program operation

unless the associated logic variables are used in other programmable modules. Deviation alarms do not light the LED on the DX front panel.

The control algorithm may be configured to operate as an On/Off controller with a symmetrical transfer function, where the comfort cooling setpoint is calculated by adding a constant symmetry band to the comfort heating setpoint and the control module action is reversed.

When the control module is in Standby or Off mode, there is a shift of the setpoints, as shown in the Figure 12. When the controller is configured as direct action (ACT = +1) the output is at 1 within the symmetry band (SBC).

Configuration Guides—DX-9100 Configuration Guide

Output

100 %

0 %

BOF

BSB

DIF

BOF

BSB

Process Var iab le

Notes

Off

Standby

Comfort

SBC

Comfort

Off

Standby

dxcon014

Figure 12: On/Off Controller with Symmetric Operation

(ACT = -1)

Via the GX Tool

Select On/Off. Then select Data in the module menu. At the Ena Symm mode 0=N field, enter 1 to enable or 0 to disable this function.

If enabled, select Data-2 to go to page 2. At the Symmetry Band (SBC) field, enter a value to add to the setpoint to determine the cooling setpoint.

Via the SX Tool

This symmetric operation is enabled at bit X5, PM Type PMnOPT (RI.01) in the On/Off module. The symmetry band is entered at Alg. Item SBC (RI.32).

1. The WSP, output, biases, and action mode values can be read and modified from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. With the SX Tool, the active values of the control algorithm can be seen at Alg. Items WSP (RI.61), PV (RI.62), RSP (RI.66), and RV (RI.67).

3. The output of the control algorithm can be seen at PM Item PMnDO (RI.71) bit X1 (Alg. Item OCM).

Configuration Guides—DX-9100 Configuration Guide

4. The logic status of the control algorithm can be seen at PM Item PMnST (RI.72), with the following bit structure:

X1 = 1 CML Controller Output at 0

X2 = 1 CMH Controller Output at 1

X5 = 1 LLDA Low Low Deviation Alarm

X6 = 1 LDA Low Deviation Alarm

X7 = 1 HDA High Deviation Alarm

X8 = 1 HHDA High High Deviation Alarm

X9 = 1 SOF Shutoff Mode Active

X10= 1 STA Startup Mode Active

X11= 1 EF External Forcing Active

X12= 1 OF Off Mode Active

X13= 1 SB Standby Mode Active

X14= 1 RA Reverse Action Mode

X15 = 0 HEAT (Cooling Controller or PV above center of

SBC in Symmetric Operation)

GX Labels

X15 = 1 HEAT (Heating Controller or PV below center of

SBC in Symmetric Operation)

Status Items can be used as logic (digital) connections using the GX Tool or SX Tool.

Source Points (Outputs)

PMnCMH A 1 when a control module’s output is equal to its output

high limit.

PMnCML A 1 when a control module’s output is equal to its output

low limit.

PMnCMP A 1 when the control module’s WSP is being overridden by

a BAS (Computer mode).

PMnEF A 1 when this control module is being externally forced.

PMnHDA A 1 when the difference PV - WSP is larger than the high

deviation alarm value.

PMnHEAT A 1 when, in a symmetric control module, the PV is below

the center of the symmetry band, and a 0 when above center; or a 1 when, in a dual control module, Loop 1 is active.

PMnHHDA A 1 when the difference PV - WSP is larger than the high

high deviation alarm value.

Configuration Guides—DX-9100 Configuration Guide

PMnHLD A 1 when the program module is in the Hold mode, being

overridden by the SX Tool or a BAS.

PMnLDA A 1 when the difference WSP - PV is larger than the low

deviation alarm value.

PMnLLDA A 1 when the difference WSP - PV is larger than the low

low deviation alarm value.

PMnLSP The value of the local setpoint. (This value is changed

when adjusting the WSP from the DX front panel.)

PMnOCM The value of the PID control module output in percent,

either a 1 or 0 for an On/Off control module.

PMnSOF A 1 when this control module is in the Shutoff mode, which

occurs when enable shutoff = 1 and the BAS has commanded it On.

PMnSTA A 1 when this control module is in the Startup mode, which

occurs when enable startup = 1 and the BAS has commanded it On.

PMnWSP The value of a control module working setpoint.

Destination Points (Inputs)

EF@ The connection to the external forcing point of control

modules.

MNWS@ The connection to the minimum working setpoint of a

control module. The WSP cannot be adjusted below this value.

MXWS@ The connection to the maximum working setpoint of a

control module. The WSP cannot be adjusted above this value.

OF@ The connection to the off-mode source point of a control

module.

PV@ The connection to the process variable of a PID or an

On/Off.

RA@ The connection to the reverse action point of a control

module.

RS@ The connection to a remote setpoint, which is used in the

calculation for the working setpoint.

RV@ The connection to reference variable, which is a multiplier

in the calculation for the working setpoint.

SB@ The connection to the standby source point of a control

module.

Configuration Guides—DX-9100 Configuration Guide

Algorithm 03 Heating/Cooling PID Control Module (Dual PID)

The heating/cooling PID Control Module algorithm has two PID control loops, which share the same process variable and control output, and have one set of status variables, but have two different sets of tuning parameters. In Version 1.1 or later, two independent control outputs are also provided, one for each loop. Only one of the two loops will be active, depending on the control status:

PV < WSP1 Loop 1 is active.

PV > WSP2 Loop 2 is active.

Abs(PV - WSP1) <= Abs(PV - WSP2) Loop 1 is active.

Note: WSP2 must always be greater than WSP1. Abs stands for absolute.

Setting Supervisory Options

The options are a series of parameters that define how the PID Control Module operates and reacts to BAS commands.

Via the GX Tool

Click on PM in the toolbar, select Control, then Dual PID, and position the module (box) on the screen. Select the module and then Data to call up the Data Window. At the Ena Shutoff: 0=N field, enter a 1 to enable this function.

At the Shutoff Out Level field, enter a value for the output to go to if Shutoff is enabled and the BAS has set Shutoff in the controller.

At the Ena Startup: 0=N field, enter a 1 to enable the function.

At the Startup Out Level field, enter a value for the output to go to if Startup is enabled and the BAS has set Startup in the controller.

At the Ena Off Trans: 0=N field, enter a 1 so the module will operate in Off mode if the BAS has set Shutoff and the process variable is below the Off mode WSP. This is only used in a reverse acting loop (negative proportional band) for heating applications for low temperature protection.

Via the SX Tool

These parameters are defined under Program Module at PM Item PMnOPT (RI.01) in the DUAL PID module, with the following bit

structure:

X1 = 1 SOFE Enable Shutoff Mode from BAS

X3 = 1 STAE Enable Startup Mode from BAS

X9 = 1 SOTO Enable Shutoff to Off change

Configuration Guides—DX-9100 Configuration Guide

Process Variable PV@

Via the GX Tool

Make a connection between the source point and PV@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected process variable under Program Modules at Alg. Item PV@ (RI.10) in the defined DUAL PID module.

Remote Setpoint RS1@, RS2@

Reference Variables RV1@, RV2@

Each of the two remote setpoints (RSP1, RSP2) is an analog variable in the control module, in units of PV, which produces a bias in the respective local setpoint. If the input is not connected, the controller will use the default value 0.

WSPn = RVn (RSPn + LSPn) + (bias)n n = 1, 2

Via the GX Tool

Make a connection between the source point and RS1@ in the destination control module. Make a connection between the source point and RS2@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected remote setpoints under Program Modules at Alg. Items RS1@ (RI.11) and RS2@ (RI.18) in the defined DUAL PID module.

Each of the two reference variables (RV1, RV2) is an analog input to the control module, which causes the respective loop in the control module to perform as a ratio controller. Its effect is a multiplier in the working setpoint calculation. If the input is not connected, the controller will use the default value 1.

WSPn = RVn (RSPn + LSPn) + (bias)n n = 1, 2

Via the GX Tool

Make a connection between the source point and RV1@ in the destination control module. Make a connection between the source point and RV2@ in the destination control module.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

Configure the software connection by entering the source address of the selected reference variables under Program Modules at Alg. Item RV1@ (RI.12) and RV2@ (RI.19) in the defined DUAL PID module.

Proportional Band

The number itself is an analog input connection (PB@) or value (PB1 or PB2) that is expressed in percent of the process variable range. When the process variable is one of the eight analog inputs to the DX-9100 Controller, the PV range is the range of the analog input. Otherwise, the range defaults to 0-100 (including all XP analog inputs). The connection is used for an application requiring a dynamic proportional band and if this input is not connected, the controller will use the proportional band value of PB1 or PB2.

Via the GX Tool

Make a connection between the source point and PB1@ in the destination control module. Make a connection between the source point and PB2@ in the destination control module.

Alternately, select the defined Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Proport. Band (PB1) and Proport. Band (PB2) fields, enter the required values.

Via the SX Tool

Under Program Modules, select the DUAL PID module. The software connection is configured by entering the source addresses of the selected proportional band at Alg. Items PB1 (RI.27) and PB2 (RI.44); or, enter a value for the proportional bands at the PB Items (RI.27, RI.44) location.

Configuration Guides—DX-9100 Configuration Guide

Reverse Action Connection RA@

The reverse action connection is a logic input to the control module, which changes the action of both controllers from direct to reverse or vice versa. Extreme caution is advised when using this connection when setpoint biases are also being used as the sign of the biases is not reversed. For correct controller operation, WSP2 must always be greater than WSP1.

If the input is not connected, the controller will use the default value 0 and the function is disabled such that the defined action in PB@, PB1 or PB2 is always used.

Via the GX Tool

Make a connection between the source point and the RA@ point of the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected reverse action logic variable under Program Modules at Alg. Item RA@ (RI.16) in the defined DUAL PID module.

Output Bias

Each of the two output bias connections (OB1@, OB2@) is an analog input to the respective loop of the control module which biases the value of the output. If the input is not connected, the controller will use the output bias value OB1 or OB2. This option is normally used in a proportional only control module where the value of OBn determines the output of the respective control module when the PV is equal to the WSP.

Via the GX Tool

Make a connection between the source point and the OB1@ point of the destination control module. Make a connection between the source point and the OB2@ destination point.

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. Enter a value at:

• Output Bias #1 (OB1)

• Output Bias #2 (OB2)

Via the SX Tool

Configure the software connection by entering the source address of the selected output bias at Items OB1@ (RI.20) and OB2@ (RI.21). Alternatively, the internal output bias values are set under Program Modules at Alg. Items OB1 (RI.34) or OB2 (RI.50).

Configuration Guides—DX-9100 Configuration Guide

Local Setpoint

Each of the two local setpoints is a value that represents the basic setpoint of the respective loop in the control module. It is a number that should be within the range of the process variable. LSP1 and LSP2 are disabled when Remote mode is enabled. When a WSP1 or WSP2 is adjusted from the front panel, the respective LSP is changed according to the formula below:

WSPn = RVn (RSPn + LSPn) + (bias)n n=1,2

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Local SP #1 (LSP1) and Local SP #2 (LSP2) fields, enter a value in units of PV.

Via the SX Tool

Under Program Modules, select the DUAL PID module and enter values for the local setpoints at Alg. Items LSP1 (RI.26) and LSP2 (RI.43).

Reset Actions

Each of the two reset actions is a number which defines the integration time for proportional-integral type control modules and is expressed in repeats per period of 1 minute, between 0 and 60. The integral time (Tn) may be computed from this number using the formula: Tn = 1/TI.

Note: The integral term of each control loop is frozen when the loop

becomes inactive and therefore determines the initial output of the loop when it again becomes active.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Reset Action #1 (TI1) and Reset Action #2 (TI2) fields, enter a value.

Via the SX Tool

Enter a value for the selected reset actions under Program Modules at Alg. Items TI1 (RI.28) or TI2 (RI.45).

Configuration Guides—DX-9100 Configuration Guide

Rate Actions

Each of the two rate actions defines the derivative action decay time value and is entered in minutes, between 0 and 5.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Rate Action #1 (TD1) and Rate Action #2 (TD2) fields, enter a value.

Via the SX Tool

Enter a value for the selected rate actions under Program Modules at Alg. Items TD1 (RI.29) or TD2 (RI.46).

Output High Limits

Output Low Limits

Each of the two high limits is a percent of the output, which defines a high limit value for the control module output in the respective loop. The default value is 100 for each limit, and must always be higher than the low limit.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Out H Lmt #1 (HIL1) and Out H Lmt #2 (HIL2) fields, enter a value.

Via the SX Tool

Enter a value for the selected high limit under Program Modules at Alg. Items HIL1 (RI.36) and HIL2 (RI.53).

Each of the two low limits is a percent of the output, which defines a low limit value for the control module output in the respective loop. The default value is 0 for each limit, and must always be lower than the high limit. The low limits are overridden when the control module is in Off mode and the output falls to 0.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Out L Lmt #1 (LOL1) and Out L Lmt #2 (LOL2) fields, enter a value.

Via the SX Tool

Enter a value for the selected low limit under Program Modules at Alg. Items LOL1 (RI.37) and LOL2 (RI.54).

Configuration Guides—DX-9100 Configuration Guide

Output 100 %

HIL2 HIL1

BOF1

BSB1

PB1

PB2

BOF2

BSB2

Deviation Alarm Values

LOL1 LOL2

0 %

Off

Standby

Comfort

Process Var iab le

Off

Standby

dxcon015

Figure 13: Heating/Cooling Module Operation

The deviation alarm values define the value which, when exceeded by the difference between the process variable and the actual working setpoint, will automatically generate a deviation alarm.

A low low deviation alarm indicates that the process variable is lower than the working setpoint of the respective loop by more than the low low deviation alarm value.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev LL Lmt #1 (DLL1) and Dev LL Lmt #2 (DLL2) fields, enter a value in units of PV.

Via the SX Tool

The low low deviation alarm value for the respective loop can be entered under Program Modules at Alg. Item DLL1 (RI.41) and DLL2 (RI.58).

A low deviation alarm indicates that the process variable is lower than the working setpoint of the respective loop by more than the low deviation alarm value.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev L Lmt #1 (DL1) and Dev L Lmt #2 (DL2) fields, enter a value in units of PV.

Configuration Guides—DX-9100 Configuration Guide

Via the SX Tool

The low deviation alarm value for the respective loop can be entered under Program Modules at Alg. Item DL1 (RI.40) and DL2 (RI.57).

A high deviation alarm indicates that the process variable exceeds the working setpoint of the respective loop by more than the high deviation alarm value.

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev H Lmt #1 (DH1) and Dev H Lmt #2 (DH2) fields, enter a value in units of PV.

Via the SX Tool

The high deviation alarm value for the respective loop can be entered under Program Modules at Alg. Item DH1 (RI.39) and DH2 (RI.56).

A high high deviation alarm indicates that the process variable exceeds the working setpoint of the respective loop by more than the high high deviation alarm value.

Enable PID to P

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Dev HH Lmt #1 (DHH1) and Dev HH Lmt #2 (DHH2) fields, enter a value in units of PV.

Via the SX Tool

The high high deviation alarm value for the respective loop can be entered under Program Modules at Alg. Item DHH1 (RI.38) and DHH2 (RI.55).

Note: Except for the PID to P changeover described below, deviation

alarms do not affect the control program operation unless the associated logic variables are used in other programmable modules. Deviation alarms do not light the LED on the DX front panel.

If a PID control loop has a high high or low low deviation alarm, it will operate as a proportional only loop when the PID to P feature is enabled. (Refer to Figure 9.)

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select DUAL PID. Then select Data in the module menu. At the Ena PID to P: 0=N field, enter 1 to enable PID to P transition, or 0 to

disable this feature.

Via the SX Tool

This feature is enabled when Alg. Item PIDP (RI.01) bit X7 is set to 1 under Program Modules.

Error Deadband

Enable Zero Output Changeover

The error deadband is expressed in percent of the active proportional band PB1 or PB2. When the process error (PV-WSP) is within this deadband, the integral term is frozen. The deadband is applied above and below setpoint and in the units of the PV is equal to:

(EDB/100) * (PB/100) * Range of the PV (AIn)

(EDB/100) * (PB/100) * 100 (all other numeric values)

Via the GX Tool

Select Dual PID. Then select Data in the module menu. In the Data Window, select Data-2 to go to page 2. At the Err Dd Bnd #1 (EDB1) and Err Dd Bnd #2 (EDB2) fields, enter a value in percent of PB.

Via the SX Tool

The error deadbands are entered under Program Modules at Alg. Items EDB1 (RI.33) and EDB2 (RI.49).

When this option is enabled, the changeover from one loop to another will only take place when the output of the active loop is at its low limit. This feature is used when the control loops have integral or derivative action and the process variable can change very quickly. It prevents a loop becoming inactive when its output is above the low limit value due to the integral or derivative term.

When this option is not enabled, the output of the loop will go to its low limit when the loop becomes inactive, and when the loop becomes active again, the output will immediately return to the value at the time of the previous changeover. This may cause unnecessary instability.

When a long integral time is configured, the effect of enabling this option will be to slow down the changeover from heating to cooling or vice-versa when the process variable changes rapidly. The changeover cannot occur until the integral and derivative terms have decayed such that the output is at the low limit value. This feature is available with x.3 controllers or later.

Configuration Guides—DX-9100 Configuration Guide

Via the GX Tool

Select the module and then Data to call up the Data Window.

At the Ena zero c/o: 0=N field, enter a 1 to enable this function.

Via the SX Tool

This parameter is defined under Program Module at PM Item PMnOPT (RI.01) in a DUAL PID module as follows:

X10 = 1 EZCO Enable Zero Output Changeover

Notes

1. The WSP1, WSP2, PB1, PB2, OCM, PV, TI1, TI2, TD1, TD2, BOF1, BOF2, BSB1, and BSB2 can be read and modified from the DX front panel. See Display Panel and Keypads in the DX-9100 Extended Digital Controller Technical Bulletin (LIT-6364020) in FAN 636.4 or 1628.4.

2. With the SX Tool, the various outputs of the control algorithm can be seen at Alg. Items OCM (RI.60), WSP1 (RI.61), WSP2 (RI.62), PV (RI.63), RSP (RI.66), RV (RI.67), OCM1 (RI.68), and OCM2 (RI.69).

3. OCM represents the output of the active loop. OCM1 and OCM2, which are only available for Version 1.1 and later, represent the outputs of Loops 1 and 2, respectively.

Configuration Guides—DX-9100 Configuration Guide

4. The logic status of the control algorithm can be seen at PM Item PMnST (RI.72), with following bit structure:

X1 = 1 CML Controller Output at Low Limit

X2 = 1 CMH Controller Output at High Limit

X3 = 1 FORC Force-back to OCM from AO is active.

Force-back is not active when the AO is connected to OCM1 or OCM2.

X5 = 1 LLDA Low Low Deviation Alarm

X6 = 1 LDA Low Deviation Alarm

X7 = 1 HDA High Deviation Alarm

X8 = 1 HHDA High High Deviation Alarm

X9 = 1 SOF Shutoff Mode Active

GX Labels

X10= 1 STA Startup Mode Active

X11= 1 EF External Forcing Active

X12= 1 OF Off Mode Active

X13= 1 SB Standby Mode Active

X14= 1 RA Reverse Action Mode

X15= 0 HEAT Cooling (Loop 2 active) (PV above WSP2)

X15= 1 HEAT Heating (Loop 1 active) (PV below WSP1)

Status Items can be used as logic (digital) connections using the GX Tool or SX Tool.

Source Points (Outputs)

PMnCMH A 1 when a control module’s output is equal to its output

high limit.

PMnCML A 1 when a control module’s output is equal to its output

low limit.

PMnCMP A 1 when the control module’s WSP is being overridden by

a BAS (Computer mode).

PMnEF A 1 when this control module is being externally forced.

Configuration Guides—DX-9100 Configuration Guide

PMnHEAT A 1 when, in a symmetric control module, the PV is below

the center of the symmetry band, and a 0 when above center; or a 1 when, in a dual control module, Loop 1 is active.

PMnHDA A 1 when the difference PV - WSP is larger than the high

deviation alarm value.

PMnHHDA A 1 when the difference PV - WSP is larger than the high

high deviation alarm value.

PMnHLD A 1 when the program module is in the Hold mode, being

overridden by the SX Tool or a BAS.

PMnLDA A 1 when the difference WSP - PV is larger than the low

deviation alarm value.

PMnLLDA A 1 when the difference WSP - PV is larger than the low

low deviation alarm value.

PMnLSP1 The value of the local setpoint of Loop 1 of a dual control

module. (This value is directly changed when adjusting the WSP1 from the DX front panel.)

PMnLSP2 The value of the local setpoint of Loop 2 of a dual control

module. (This value is changed when adjusting the WSP2 from the DX front panel.)

PMnMNWS The value of the minimum working setpoint allowed for a

control module.

PMnMXWS The value of the maximum working setpoint allowed for a

control module.

PMnOCM The value of the dual PID control module output in percent.

PMnOCM1 The value of the Loop 1 output in a dual PID control

module in percent.

PMnOCM2 The value of the Loop 2 output in a dual PID control

module in percent.

PMnSOF A 1 when this control module is in the Shutoff mode, which

occurs when enable shutoff = 1 and the BAS has commanded it On.

PMnSTA A 1 when this control module is in the Startup mode, which

occurs when enable startup = 1 and the BAS has commanded it On.

PMnWSP1 The value of the working setpoint of Loop 1 of a dual

control module.

PMnWSP2 The value of the working setpoint of Loop 2 of a dual

control module.

Configuration Guides—DX-9100 Configuration Guide

Destination Points (Inputs)

EF@ The connection to the external forcing point of control

modules.

MNWS@ The connection to the minimum working setpoint of a control

module. The WSP cannot be adjusted below this value.

MXWS@ The connection to the maximum working setpoint of a

control module. The WSP cannot be adjusted above this value.

OB1@ The connection for Loop 1 of a dual PID output bias.

OB2@ The connection for Loop 2 of a dual PID output bias.

OF@ The connection to the off-mode source point of a control

module.

PB@ The connection to proportional band, which replaces the

value PB if there is a connection.

PV@ The connection to the process variable of a control module.

RA@ The connection to the reverse action point of a control

module.

Algorithm 04 Heating/ Cooling On/Off Control Module (Dual On/Off)

RS1@ The connection for Loop 1 of a dual control module remote

setpoint.

RS2@ The connection for Loop 2 of a dual control module remote

setpoint.

RV1@ The connection for Loop 1 of a dual control module

reference variable.

RV2@ The connection for Loop 2 of a dual control module

reference variable.

SB@ The connection to the standby source point of a control

module.

The heating/cooling On/Off algorithm has two On/Off Control loops that share the same process variable and control output, and have one set of status variables, but have two different sets of tuning parameters. In Version 1.1 or later, two independent control outputs are also provided, one for each loop. Only one of the two loops will be active, depending on the control status:

PV < = WSP1 Loop 1 is active.

PV > = WSP2 Loop 2 is active.

Abs (PV - WSP1) < = Abs (PV - WSP2) Loop 1 is active.

Note: WSP2 must always be greater than WSP1.

Configuration Guides—DX-9100 Configuration Guide

Setting Supervisory Control Options

The options are series of parameters that define how the On/Off Control Module operates and reacts to BAS commands.

Via the GX Tool

Click on PM in the toolbar, select Control, then Dual On/Off and position the module (box) on the screen. Select the module and then Data to call up the Data Window. At the Ena Shutoff: 0=N field, enter a 1 to enable this function.

At the Shutoff Out Level field, enter 0 for Off and 1 for On. It will go to the specified state if Shutoff is enabled and the BAS has set Shutoff in the controller.

At the Ena Startup: 0=N field, enter a 1 to enable the function.

At the Startup Out Level field, enter 0 for Off and 1 for On. It will go to the specified state if Startup is enabled and the BAS has set Startup in the controller.

Via the SX Tool

These parameters are defined under Item PMnOPT (RI.01) of the D On/Off module, with the following bit structure:

Process Variable Connection PV@

X1 = 1 SOFE Enable Shutoff mode from Supervisory System

X2 SOFL 0=0, 1=1 Shutoff out level

X3 = 1 STAE Enable Startup mode from Supervisory System

X4 STAL 0=0, 1=1 Startup out level

Via the GX Tool

Make a connection between the source point and PV@ in the destination control module.

Via the SX Tool

Configure the software connection by entering the source address of the selected process variable under Program Modules at Item PV@ (RI.10) in the defined D On/Off module.

Configuration Guides—DX-9100 Configuration Guide

Remote Setpoint Connections RS1@, RS2@

Each of the two remote setpoints (RSP1, RSP2) is an analog variable to the control module, in units of the PV, which produces a bias in the respective local setpoint. If the input is not connected, the controller will use the default value 0.

WSPn = RVn (RSPn + LSPn) + (bias)n n = 1, 2

Via the GX Tool

Make a connection between the source point and RS1@ in the destination control module. Make a connection between the source point and RS2@ destination point.

Via the SX Tool

Configure the software connection by entering the source addresses of the selected remote setpoint under Program Modules at Alg. Items RS1@ (RI.11) and RS2@ (RI.18).

Reference Variable Connection RV1@, RV2@

Reverse Action Connection RA@

WSPn = RVn (RSPn + LSPn) + (bias)n n = 1, 2

Via the GX Tool

Make a connection between the source point and RV1@ in the destination control module. Make a connection between the source point and RV2@ destination point.

Via the SX Tool

Configure the software connection by entering the source addresses of the selected reference variable under Program Modules at Alg. Items RV1@ (RI.12) and RV2@ (RI.19).

CAUTION: The reverse action connection is a logic input to the

control module which changes the action of both controllers from direct to reverse or vice versa. Extreme caution is advised with this connection when setpoint biases are also being used as the sign of the biases is not reversed. For correct controller operation, WSP2 must always be greater than WSP1.

100

Configuration Guides—DX-9100 Configuration Guide

Johnson Controls DX-9100 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

DX-9100 Extended Digital Plant Controller

Introduction

Hardware Configuration

Software Configuration

DX-9100 Software Elements

Configuration Tools

Configuring the Controller

DX-9100 Controller Selection

DX-9100 Global Data

Configuration Number (Version 1.1 or Later)

Analog Input Configuration

Digital Input Configuration

Analog Output Configuration

Digital Output Configuration

DO: Output Type

Constants and Result Status

Extension Module Configuration

Network Analog Input Configuration (Version 3 Only)

Network Digital Input Configuration (Version 3 Only)

Network Analog Output Configuration (Version 3 Only)

Network Digital Output Configuration (Version 3 Only)

Programmable Function Module Configuration

Control Algorithm Theory