Rockwell Automation 1794-APBDPV1 User Manual

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User Manual

FLEX I/O PROFIBUS Adapter Module

Catalog Number

1794-APBDPV1

Important User Information

IMPORTANT

Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/ important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

available from

) describes some

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Identifies information that is critical for successful application and understanding of the product.

Allen-Bradley, Rockwell Automation, FLEX I/O, RSLogix, R SLinx, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Summary of Changes

The information below summarizes the changes to this manual since the last printing.

To help you find new and updated information in this release of the manual, we have included change bars as shown next to this paragraph.

The table below lists the sections that document new features and additional or updated information about existing features.

Top ic

Added detailed procedure for using the teaching feature and the different parameters for creating a teaching entry

Page

105

Rockwell Automation Publication 1763-UM002D-EN-P - May 2014 iii

Chapter 1

Notes:

iv Rockwell Automation Publication 1763-UM002D-EN-P - May 2014

Overview of the FLEX I/O PROFIBUS APBDPV1 Module

Preface

Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Common Techniques Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . vii

Chapter 1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

The FLEX I/O System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Purpose of the FLEX I/O PROFIBUS APBDPV1 Adapter. . . . . . . . . . . 2

Differences Between APB and APBDPV1 Adapters . . . . . . . . . . . . . . . . . . 2

DP-V1 Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Bandwidth and Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

PROFIBUS APBDPV1 Adapter Components. . . . . . . . . . . . . . . . . . . . . . . 3

Diagnostic Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Network Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Set the Node Address Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Mount and Remove Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Extender Cables (1794-CE1 or -CE3) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Mounting Kit (1794-NM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mounting Dimensions and Spacing Requirements . . . . . . . . . . . . . . . . . . . 7

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 2

Communicate With Your Module

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Communication Over the I/O Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Polled I/O Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Adapter Input Status Word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Map Data into the Image Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Logic Status/Analog Feedback Definition . . . . . . . . . . . . . . . . . . . . . . 67

Logic Command/Analog Reference Definition . . . . . . . . . . . . . . . . . 68

Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Chapter 3

Connect Your Adapter to the PROFIBUS DP Network

v Publication 1794-UM064B-EN-P - May 2014

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

The DP Physical Layer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Cabling and Equipment Required for Line A Type. . . . . . . . . . . . . . . . . . 72

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

T-junction Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Termination Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

vi Table of Contents

Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Cabling and Equipment Required for Line B Type . . . . . . . . . . . . . . . . . . 73

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

T-junction Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Termination Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Connect the Adapter to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Connect Wiring to the Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Terminate the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Terminate at the Adapter Using Line A . . . . . . . . . . . . . . . . . . . . . . . . 76

Terminate at the Adapter Using Line B. . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 4

Configure the Adapter for Master/Slave Communication

Interpret Status Indicators for the FLEX I/O PROFIBUS Module

Apply FLEX I/O Modules

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

How Master/Slave Communication Takes Place . . . . . . . . . . . . . . . . . . . . 79

Enter User Parameter Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

User Parameter Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Auto Configure Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Condensed Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Full Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Enter Check Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Chapter 5

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

1794-APBDPV1 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

View status from the Master’s Configuration Software . . . . . . . . . . . . . . 92

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Chapter 6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Evaluate the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Define the Area Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Decide Classification Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Determine Hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Determine Temperature Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Select Protection Method(s). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Match Field Devices

and I/O Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

P/I Analog Transmitter Functional and IS Parameters . . . . . . . . . . . 98

Loop Functionality Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

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Specifications

Table of Contents vii

Appendix A

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Appendix B

Device Data Base (GSD) File

Additional HART Protocol Information

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Use the Teaching GSD Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Create Standard and Teaching GSD Files. . . . . . . . . . . . . . . . . . . . . . 106

Teaching GSD Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Teach an I/O Module to Work with 1794-APBDPV1 Adapter . . . . . 115

Appendix C

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Message Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Master-slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Multiple Master Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Transaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Burst Mode (not supported). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Universal Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Index

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viii Table of Contents

Notes:

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Preface

Read this preface to familiarize yourself with the rest of the manual. It provides information concerning:

• who should use this manual

• the purpose of this manual

• related documentation

• conventions used in this manual

Who Should Use this Manual

Purpose of this Manual

You must be able to program and operate a PROFIBUS product and PROFIBUS network to make efficient use of the FLEX I/O PROFIBUS APBDPV1 adapter module.

We assume you know how to do this in this manual. If you do not, refer to your software user manuals or online help before attempting to use these modules.

This manual describes how you can use your FLEX I/O PROFIBUS APBDPV1 adapter with your controller. The manual helps you install, program, and troubleshoot your module.

For Information About See

Overview of the FLEX I/O PROFIBUS APBDPV1 Module Chapter 1

Communicate With Your Module Chapter 2

Connect Your Adapter to the PROFIBUS DP Network Chapter 3

Configure the Adapter for Master/Slave Communication Chapter 4

Interpret Status Indicators for the FLEX I/O PROFIBUS Module Chapter 5

Apply FLEX I/O Modules Chapter 6

Specifications Appendix A

Device Data Base (GSD) File Appendix B

Additional HART Protocol Information Appendix C

ix Publication 1794-UM064B-EN-P - May 2014

Common Techniques Used in this Manual

The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural steps.

• Numbered lists provide sequential steps or hierarchical information.

• Italic type is used for emphasis.

Information on how to install the FLEX I/O AC Input Modules Catalog No. 1794-IA8, 1794-IA8I, 1794-IA16.

Information on how to install the FLEX I/O Digital AC Output Modules Catalog No. 1794-OA8, 1794-OA8K, 1794-OA8I, 1794-OA16.

Information on how to install the FLEX I/O DC Power Supply Catalog No. 1794-PS13, 1794-PS3

Information on how to install the extension cables. Catalog No. 1794--CE1, 1794-CE3

In-depth information on grounding and wiring Allen-Bradley programmable controllers.

A glossary of industrial automation terms and abbreviations.

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xii

Notes:

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Chapter

Adapter I/O moduleTerminal base

1113

1112

1111

Overview of the FLEX I/O PROFIBUS APBDPV1 Module

Overview

The FLEX I/O System

Read this chapter to familiarize yourself with the adapter module.

For Information About See Page

The FLEX I/O System 1

Purpose of the FLEX I/O PROFIBUS APBDPV1 Adapter 2

Differences Between APB and APBDPV1 Adapters 2

PROFIBUS APBDPV1 Adapter Components 3

Mount and Remove Your System 4

Optional Accessories 5

Mounting Dimensions and Spacing Requirements 7

The FLEX I/O system is a small, modular I/O system for distributed applications that performs all of the functions of rack-based I/O. The FLEX I/O system contains the following components:

• PROFIBUS adapter/power supply – powers the internal logic for as many as eight I/O modules

1 Publication 1794-UM064B-EN-P - May 2014

• terminal base – contains a terminal strip to terminate wiring for two- or three-wire devices

• I/O module – contains the bus interface and circuitry needed to perform specific functions related to your application

2 Overview of the FLEX I/O PROFIBUS APBDPV1 Module

RS-485

PROFIBUS DP master/scanner controller

Other DP adapter/slave

1794-APBDPV1 adapter/slave

FLEX I/O system

Other DP adapter/slave

Personal computer with configuration software

1118

Purpose of the FLEX I/O PROFIBUS APBDPV1 Adapter

The 1794-APBDPV1 module is a FLEX I/O communications adapter that interacts with the FLEX I/O backplane and any PROFIBUS DP master/scanner controller on a PROFIBUS DP network.

The 1794-APBDPV1 module is a slave device to the DP master/scanner, and is a master controller of the FLEX I/O system where it is installed. The I/O data exchange occurs as follows: Output data is sent from the DP master/scanner controller across the PROFIBUS DP network to the 1794-APBDPV1 adapter. The adapter then automatically transfers the data across the FLEX I/O backplane to the output modules. Inputs from the input modules are collected by the FLEX I/O adapter via the backplane and sent across the PROFIBUS DP network to the DP master/scanner controller.

Differences Between APB and APBDPV1 Adapters

This section describes the differences between the 1794-APB FLEX I/O PROFIBUS and the 1794-APBDPV1 FLEX I/O PROFIBUS APBDPV1 adapter modules.

DP-V1 Protocol

The FLEX I/O PROFIBUS APBDPV1 adapter uses a newer version of PROFIBUS DP (DP1) protocol whereas the The FLEX I/O PROFIBUS APB adapter uses the first generation PROFIBUS DP protocol (DP-0).

Functionality

The FLEX I/O PROFIBUS APBDPV1 adapter features Identification & Maintenance (I&M) functions. These functions specify how certain device describing data must be unambiguously stored in PROFIBUS devices essentially enabling easy access to current information on the device. The adapter also supports newer HART modules than the The FLEX I/O PROFIBUS APB adapter.

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Overview of the FLEX I/O PROFIBUS APBDPV1 Module 3

1119 1120

Status indicator

(green/red)

PROFIBUS indicator

(green/red)

PROFIBUS DP network connector

FlexBus connector

24V DC wiring connection terminals

Node address switches

Bandwidth and Range

The FLEX I/O PROFIBUS APB adapter baud-rate is now 12 MBd and, although the physically PROFIBUS address range is still limited to 1..99, the logical address range is 1..126.

PROFIBUS APBDPV1 Adapter Components

The adapter module consists of the following components:

• two diagnostic indicators

•PROFIBUS DP network connector

• 24V DC power wiring connection terminals

• two node address switches

Diagnostic Indicators

Diagnostic indicators are located on the front panel of the adapter module. They show both normal operation and error conditions in your FLEX I/O system. The indicators are:

• Device status (STATUS)

• Communication link status (PROFIBUS)

Upon power-up, the adapter goes to an initialization state and performs a self-test (memory check, data memory clear, CRC on code). The indicators also go through a self-test sequence. If a failure occurs, the adapter transitions to a faulted state and waits for reset (cycle power). Otherwise, the adapter begins monitoring the network (run state) for messages.

Network Connector

Use the 9-pin SUB-D connector to connect your adapter to the PROFIBUS network.

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4 Overview of the FLEX I/O PROFIBUS APBDPV1 Module

44560

PROFIBUS

DP Network Connector

(9-pin SUB-D)

24V DC wiring connection terminals

Thumbwheel switches for setting the node address

Set the Node Address Switches

Set the thumbwheel switches to 00 to allow node addressing by software configuration tool to set the range from 1…125. Address changes take effect only after cycling power. Use a pen to press either the + or – buttons to change the number.

Mount and Remove Your System

Power Wiring

Connection terminals are provided for connecting the required 24V DC power to the front of the module. The power wiring can be daisy-chained to the terminal base unit located next to the adapter to supply power to the module installed in that base unit.

Refer to the FLEX I/O PROFIBUS Communications Adapter Installation Instructions, publication 1794-IN114 learn how to install and wire the adapter.

You can horizontally or vertically mount the FLEX I/O system on a standard DIN rail. The adapter and terminal base easily snap on the DIN rail by hand. Refer to the installation instructions shipped with these components.

Screw holes are also provided to horizontally or vertically panel-mount your system in an enclosure. To panel-mount your FLEX I/O system, use the optional mounting kit (1794-NM1). See Example of a DIN Rail-Mounted System

page 5.

, that you received with your adapter to

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Overview of the FLEX I/O PROFIBUS APBDPV1 Module 5

1114

Screw holes are available for panel-mounting

Locking tab connector holds terminal base onto DIN rail

DIN rail Allen Bradley catalog number 199-DR1 DIN 46277-3 EN 50022 (35 X 7.5mm)

Components are slotted to accept a DIN rail

1115

1794-CE1 or 1794-CE3 extender cable

Example of a DIN Rail-Mounted System

Optional Accessories

Extender Cables (1794-CE1 or -CE3)

Use the optional 1794-CE1, 0.3m (11.81 in.) or -CE3, 0.9m (35.43 in.) extender cable (one per system) to arrange your system in two rows or split your system into horizontal and vertical orientation.

ATTENTION: Do not use more than one extender cable per system

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6 Overview of the FLEX I/O PROFIBUS APBDPV1 Module

1116

1794-NM1 Mounting Kit with 18 screws (2 screws for the adapter and 2 screws for each module

Mounting Kit (1794-NM1)

Use the optional 1794-NM1 mounting kit to mount your system on a panel or wall without a DIN rail.

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Mounting Dimensions and

Optional

mounting

kit 35

(1.4)

21 (0.83)

(1.4)

(3.7)

(0.9)

(0.6)

(0.3)

(2.0)

(1.2)

DIN Rail

(3.2)

(3.4)

(2.7)

(3.7)

(2.3)

For 1794-CE1 Approximately 292.1 (11.5) from upper connector. For 1794-CE3 Approximately 901 (35.5) from upper connector.

DPV1

1117

Spacing Requirements

Overview of the FLEX I/O PROFIBUS APBDPV1 Module 7

Chapter Summary

In this chapter you learned about the FLEX I/O PROFIBUS APBDPV1 adapter module and the FLEX I/O system. Read the next chapter to learn how to communicate with your module.

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8 Overview of the FLEX I/O PROFIBUS APBDPV1 Module

Notes:

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Communicate With Your Module

PROFIBUS Adapter

Read

Read Words

Inputs

Status

Outputs

Configuration

Inputs

Status

Outputs

Configuration

Inputs

Status

Outputs

Configuration

Write Words

Write

1122

Chapter

Overview

Communication Over the I/O Backplane

Read this chapter to familiarize yourself with configurable features on the input and output analog modules

For Information About See Page

Communication Over the I/O Backplane 9

Polled I/O Structure 10

Map Data into the Image Table 12

Defaults 68

One 1794-APBDPV1 PROFIBUS adapter can interface with up to eight terminal base units with installed FLEX I/O modules, forming a FLEX I/O system of up to eight slots. The adapter communicates to other network system components over the PROFIBUS network. The adapter communicates with its I/O modules over the backplane.

The I/O map for a module is divided into read words and write words. Read words consist of input and status words, and write words consist of output and configuration words. The number of read words or write words can be 0 or more. The length of each I/O module’s read words and write words vary in size depending on module complexity. Each I/O module will support at least 1 input word or 1 output word. Status and configuration are optional, depending on the module.

10 Communicate With Your Module

Delay

Time

Delay

Time

1123

16-point Discrete Input Module

Adapter Status

Read

Write

Slot 1 Input Data

Slot 2 Input Data

Slot 8 Input Data

Adapter Status

Slot 1 Output Data

Slot 2 Output Data

Slot 8 Output Data

1124

For example, a 16 point discrete input module will have up to 2 read words and 1 write word.

Refer to each module user manual I/O map for the exact mapping.

Polled I/O Structure

The first word of output data received by the adapter is the Adapter Status Word. Output data is received by the adapter in the order of the installed I/O modules. The Output data for Slot 1 is received first, followed by the Output data for Slot 2, and so on up to slot 8. All bits in the output status word are reserved.

The first word of input data sent by the adapter is the Adapter Status Word. This is followed by the input data from each slot, in the order of the installed I/O modules. The Input data from Slot 1 is first after the status word, followed by Input data from Slot 2, and so on up to slot 8.

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Adapter Input Status Word

The input status word consists of:

• I/O module fault bits — 1 status bit for each slot

• node address changed — 1 bit

1125

I/O Module Fault Bits

Bit: 15 014 13 12 11 10 9 8 7 6 5 4 3 2 1

Communicate With Your Module 11

Slot 8

Slot 7

Slot 6

Slot 5

Slot 1

Slot 2

Slot 3

Slot 4

Node Address Changed Bit

Reserved

The adapter input status word bit descriptions are shown in Ta b l e

Wor d B it s.

Input Status Word Bits

Bit Description Bit Explanation

I/O Module Fault

Reserved 1…7 Reserved

Node Address changed

8 This bit is set (1) when an error is detected in slot position 1.

9 This bit is set (1) when an error is detected in slot position 2.

10 This bit is set (1) when an error is detected in slot position 3.

11 This bit is set (1) when an error is detected in slot position 4.

12 This bit is set (1) when an error is detected in slot position 5.

13 This bit is set (1) when an error is detected in slot position 6.

14 This bit is set (1) when an error is detected in slot position 7.

15 This bit is set (1) when an error is detected in slot position 8.

0 This bit is set (1) when the node address switch setting has been

changed since power up.

Input Status

Possible causes for an I/O module fault are:

• transmission errors on the FLEX I/O backplane

• a failed module

• a module removed from its terminal base

• an incorrect module inserted in a slot position

• an empty slot

The node address changed bit is set when the node address switch setting has been changed since power up. The new node address does not take effect until the adapter has been powered down and then powered back up. Until this power cycling occurs, the node address switches will not match the actual node address.

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12 Communicate With Your Module

Filter Time

1126

Map Data into the Image Table

Commonly used FLEX I/O modules used with the PROFIBUS adapter are listed below. A full list of modules is available in the GSD file. For more information on the GSD file, see Device Data Base (GSD) File

FLEX I/O Data Mapping Tables

Module Description Catalog Number For image table

8 Sink input module 1794-IB8 12

16 Sink input module 1794-IB16 13

8 Source output module 1794-OB8 14

16 Source output module 1794-OB16 14

16 Source input module 1794-IV16 15

16 Sink output module 1794-OV16 16

8 Electronically fused output module 1794-OB8EP 16

10 input/6 output module 1794-IB10XOB6 17

8 input module 1794-IA8 18

8 output module 1794-OA8 19

8 relay output module 1794-OW8 19

8 input analog module 1794-IE8 20

4 output analog module 1794-OE4 23

4 in/2 out analog combo module 1794-IE4XOE2 25

8 input RTD analog module 1794-IR8 28

8 input thermocouple module 1794-IT8 32

8 input thermocouple/RTD/mV module 1794-IRT8 36

2 input pulse counter module 1794-ID2 59

4 input encoder counter module 1794-IP4 63

SCANport module 1203-FM1 66

in Appendix B.

mapping see page

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1794-IB8 — 8 Point Digital Input Module Image Table Mapping

Communicate With Your Module 13

1127

1794-IB8 Memory Map

Decimal Bit 15141312111009080706050403020100Size

Octal Bit 17161514131211100706050403020100Read Words

Not used

D7 D6 D5 D4 D3 D2 D1 D0 Read Word 0

Read Word 1

FT 00…07 Write Word 0

Where: D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1, and so on)

DT = Input Filter Time (FT 00…07 corresponds to inputs 0…7)

1794-IB8 Input Filter Times

Description Selected

02 01 00 Filter Time for Inputs 00…07

Filter Time

0 0 0 Filter Time 0 (default) 0.256 ms

0 0 1 Filter Time 1 0.512 ms

0 1 0 Filter Time 2 1 ms

0 1 1 Filter Time 3 2 ms

1 0 0 Filter Time 4 4 ms

1 0 1 Filter Time 5 8 ms

1 1 0 Filter Time 6 16 ms

1 1 1 Filter Time 7 32 ms

1794-IB16 – 16-point Digital Input Module Image Table Mapping

Counter

RCDF

Filter Tim e

Filter Time

1794-IB16 Memory Map

Decimal Bit 15 14 13 12 1110 09080706050403020100Size

Octal Bit 17 16 15 14 1312 11100706050403020100Read Words

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Read Word 0

Counter

Not used

Where: D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1, and so on)

DT = Input Filter Time (FT 00…11 corresponds to inputs 0…11; FT 12…15 corresponds to inputs 12…15) DF = Disable Filter RC = Reset Counter

DF RC FT 12…15 FT 00…07 Write Word 0

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Read Word 1

14 Communicate With Your Module

1128

1130

1794-IB16 Input Delay Times

Description Selected

02 01 00 Filter Time for Inputs 00…11

Filter Time

05 04 03 Filter Time for Inputs 12…15

0 0 0 Filter Time 0 (default) 0.256 ms

0 0 1 Filter Time 1 0.512 ms

0 1 0 Filter Time 2 1 ms

0 1 1 Filter Time 3 2 ms

1 0 0 Filter Time 4 4 ms

1 0 1 Filter Time 5 8 ms

1 1 0 Filter Time 6 16 ms

1 1 1 Filter Time 7 32 ms

1794-OB8 – 8 Point Discrete Output Module Image Table Mapping

1794-OB8 Memory Map

Decimal Bit 15 14 1312 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read Words

Not used

O7 O6 O5 O4 O3 O2 O1 O0 Write Word 0

Not used

Where: O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, and so on)

1794-OB16 – 16-point Discrete Output Module Image Table Mapping

Read Word 0

Write Word 1

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Communicate With Your Module 15

1132

1794-OB16 Memory Map

Decimal Bit 15 14 13 12 1110 09080706050403020100Size

Octal Bit 17 16 15 14 1312 11100706050403020100Read/Write Words

Not used

O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0 Write Word 0

Not used

Where: O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, and so on)

Read Word 0

Write Word 1

1794-IV16 – 16-point Source Input Module Image Table Mapping

Counter

RCDF

FT for all

Channels

1794-IV16 Memory Map

Decimal Bit15 14 1312 1110 09 08 0706050403020100Size

Octal Bit 1716 1514 13 12 11 10 0706050403020100Read/Write Words

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Read Word 0

Counter

Not used

Where: D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1, and so on)

DT = Input Filter Time (FT 00…11 corresponds to inputs 0…11; FT 12…15 corresponds to inputs 12…15) DF = Disable Filter RC = Reset Counter NU = Not Used

DF RC NU FT for all channels

Not used

Read Word 1

Write Word 0

1794-IV16 Input Filter Times

Description Selected

10 09 08 Filter Time for Inputs 00-15 (00…17)

0 0 0 Filter Time 0 (default) 216 µs

0 0 1 Filter Time 1 512 µs

0 1 0 Filter Time 2 1 ms

0 1 1 Filter Time 3 2 ms

1 0 0 Filter Time 4 4 ms

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Filter Time

16 Communicate With Your Module

1134

1136

1794-IV16 Input Filter Times

Description Selected

10 09 08 Filter Time for Inputs 00-15 (00…17)

Filter Time

1 0 1 Filter Time 5 8 ms

1 1 0 Filter Time 6 16 ms

1 1 1 Filter Time 7 32 ms

1794-OV16 – 16-point Sink Output Module Image Table Mapping

1794-OV16 Memory Map

Decimal Bit 15 14 1312 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

Not used

O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0 Write Word 0

Not used

Where: O = Output value

Read Word 0

Write Word 1

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1794-OB8EP – 8-point Discrete Protected Output Module Image Table Mapping

Communicate With Your Module 17

Filter

Time

1137

1794-OB8EP Memory Map

Decimal Bit15 14 1312 1110 09 08 0706050403020100Size

Octal Bit 1716 1514 13 12 11 10 0706050403020100Read/Write Words

F7 F6 F5 F4 F3 F2 F1 F0

Not used

Reserved

Where: F = overload fault bits – 1 = fault present; 0 = no fault

Using the Fault Reset Button When you press the manual reset button:

1. The fault indicator for the faulted output turns off for about 1.2 s (the faulted output will not attempt to turn on during this delay)

2. After the 1.2 s delay, the faulted output attempts to turn on

3. If the external condition causing the fault is corrected, the output remains on, the fault indicator is off, and the status indicator is on

(1)

The unused lower byte in read word 1 floats during operation. Do not use this byte for fault status.

Ox = Output Data (O0 corresponds to output 0, O1 corresponds to output 1, and so on) FR = fault reset bit – 1 = reset output; 0 = no change.

(1)

Read Word 0

O6 O5 O4 O3 O2 O1 O0 Write Word 0

Write Word 1

1794-IB10XOB6 – 16-point Digital Input/Output Module Image Table Mapping

1794-IB10XOB6 Memory Map

Decimal Bit 15 14 13 12 1110 09080706050403020100Size

Octal Bit 17 16 15 14 1312 11100706050403020100Read/Write Words

Not used

Where: I = Input Channel

O = Output Channel

I9 I8 I7 I6 I5 I4 I3 I2 I1 I0 Read Word 0

Read Word 1

O5 O4 O3 O2 O1 O0 Write Word 0

Filter Time Not used Write Word 1

1794-IB10XOB6 Input Filter Times

Description Selected

02 01 00 Filter Time for Inputs 00…07

0 0 0 Filter Time 0 (default) 0.256 ms

0 0 1 Filter Time 1 0.512 ms

0 1 0 Filter Time 2 1 ms

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Filter Time

18 Communicate With Your Module

1138

1794-IB10XOB6 Input Filter Times

Description Selected

02 01 00 Filter Time for Inputs 00…07

Filter Time

0 1 1 Filter Time 3 2 ms

1 0 0 Filter Time 4 4 ms

1 0 1 Filter Time 5 8 ms

1 1 0 Filter Time 6 16 ms

1 1 1 Filter Time 7 32 ms

1794-IA8 – 8-point Discrete Input Module Image Table Mapping

Filter Tim e

1794-IA8 Memory Map

Decimal Bit15 14 1312 1110 09 08 0706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

Not used

Where: D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1,and so on)

FT = Input Filter Time (FT 00…07 corresponds to inputs 0…7)

FT 00…07 Not used Write Word 0

D7 D6 D5 D4 D3 D2 D1 D0 Read Word 0

Read Word 1

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1794-IA8 Input Filter Times

Bits Description Maximum Filter Time

02 01 00 Filter Time for Inputs 00…15 (00…17) Off to On On to Off

0 0 0 Filter Time 0 (default) 8.6 ms 26.6 ms

0 0 1 Filter Time 1 9 ms 27 ms

0 1 0 Filter Time 2 10 ms 28 ms

0 1 1 Filter Time 3 12 ms 30 ms

1 0 0 Filter Time 4 17 ms 35 ms

1 0 1 Filter Time 5 26 ms 44 ms

1 1 0 Filter Time 6 43 ms 61 ms

1 1 1 Filter Time 7 78 ms 96 ms

Communicate With Your Module 19

1139

1140

1794-OA8 – 8-point Discrete Output Module Image Table Mapping

1794-OA8 Memory Map

Decimal Bit 15 14 13 12 1110 09080706050403020100Size

Octal Bit 17 16 15 14 1312 11100706050403020100Read Words

Not used

O7 O6 O5 O4 O3 O2 O1 O0 Write Word 0

Not used

Where: O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, and so on)

1794-OW8 – 8-point Discrete Relay Output Module Image Table Mapping

Read Word 0

Write Word 1

1794-OW8 Memory Map

Decimal Bit 15 14 13 12 1110 09080706050403020100Size

Octal Bit 17 16 15 14 1312 11100706050403020100Read/Write Words

Not used

O7 O6 O5 O4 O3 O2 O1 O0 Write Word 0

Not used

Where: O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, and so on)

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Read Word 0

Write Word 1

20 Communicate With Your Module

1141

1794-IE8 Series B – 8 Input Analog Module Image Table Mapping

1794-IE8/B Memory Map

Decimal Bit 15 14 1312 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

S Analog Value Channel 0

S Analog Value Channel 1

S Analog Value Channel 2

S Analog Value Channel 3

S Analog Value Channel 4

S Analog Value Channel 5

S Analog Value Channel 6

S Analog Value Channel 7

PU Not used – set to zero

C6 C5 C4 C3 C2 C1 C0 F7 F6 F5 F4 F3 F2 F1 F0 Write Word 0

Not used

Where: PU = Power up bit – included in series B modules only.

U = Underrange bits for 4…20 mA inputs C = Configure select bit F = Full range bit S = sign bit (in 2’s complement)

U7 U6 U5 U4 U3 U2 U1 U0 Read Word 8

Read Word 0

Read Word 1

Read Word 2

Read Word 3

Read Word 4

Read Word 5

Read Word 6

Read Word 7

Write Word 1…5

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Communicate With Your Module 21

1794-IE8/B Range Selection Bits

Channel No. Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7

F0 C0 F1 C1 F2 C2 F3 C3 F4 C4 F5 C5 F6 C6 F7 C7

Decimal Bits (Octal Bits)

0…10V DC/0…20 mA

4…20 mA

-10…10V DC

Off

Where: C = Configure select bit

00 08

1010101010101010

0101010101010101

1111111111111111

0000000000000000

F = Full range bit Off = When configured to off, individual channels will return 0000H on Series B modules, and 4…20 mA on Series A modules.

(10)

01 09

(11)

02 10

(12)

03 11

(13)

04 12

(14)

04 13

(15)

06 14

(16)

07 15

1794-IE8 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 Bits 00…14 Channel 0 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 0 analog data sign bit.

Read Word 1 Bits 00…14 Channel 1 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 1 analog data sign bit.

Read Word 2 Bits 00…14 Channel 2 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 2 analog data sign bit.

Read Word 3 Bits 00…14 Channel 3 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 3 analog data sign bit.

Read Word 4 Bits 00…14 Channel 4 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 4 analog data sign bit.

Read Word 5 Bits 00…14 Channel 5 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 5 analog data sign bit.

Read Word 6 Bits 00…14 Channel 6 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 6 analog data sign bit.

Read Word 7 Bits 00…14 Channel 7 analog data – 12-bit left justified two’s complement number;

Bit 15 Channel 7 analog data sign bit.

unused lower bits are zero; 4…20 mA uses all 16 bits.

(17)

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22 Communicate With Your Module

1794-IE8 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 8 Bits 00…07 Underrange bits (U) for individual channels (4...20 mA current input only) –

Bit 00 corresponds to input channel 0, bit 01 corresponds to input channel 1, and so on. When set (1), indicates either a broken or open input wire, or input current below 4.20 mA.

Bits 08…14 Not used – set to 0.

Bit 15 Power up bit – included in Series B modules only. This bit is 0 in series A

modules. This bit is set to 1 when all bits in the configuration register are 0 (unconfigured state). The configuration register can be cleared by either of the reset inputs, or by the user writing all zeroes to it.

Write Word 0 Bits 00…07 Full range bits (F) for individual channels – Bit 00 corresponds to input

channel 0, bit 01 corresponds to input channel 1, and so on. Refer to range selection table.

Bits 08…15 Configure select bits (C) for individual channels – Bit 08 corresponds to

input channel 0, bit 09 corresponds to input channel 1, and so on. Refer to range selection table.

Write Word 1 Bits 00…15 Not used – set to 0

Write Word 2 Bits 00…15 Not used – set to 0

Write Word 3 Bits 00…15 Not used – set to 0

Write Word 4 Bits 00…15 Not used – set to 0

Write Word 5 Bits 00…15 Not used – set to 0

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Communicate With Your Module 23

Chx SS Config

1142

1794-OE4 Series B – 4 Output Analog Module Image Table Mapping

1794-OE4/B Memory Map

Decimal Bit15 14 13 12 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

S Not used – set to zero W3 W2 W1 W0 Read Word 0

S Analog Value Channel 0 Write Word 0

S Analog Value Channel 1 Word 1

S Analog Value Channel 2 Word 2

S Analog Value Channel 3 Word 3

S Not used – set to 0 Chx Safe State Config Word 4

PU Not used – set to 0 C3 C2 C1 C0 Not used – set to 0 F3 F2 F1 F0 Word 5

S Not used – set to 0 Word 6…9

Where: PU = Power up bit – included in Series B modules only.

W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.) S = Sign bit (in 2’s complement) C = Configure select bit F = Full range bit

1794-OE4/B Range Selection Bits (Write Word 6)

Channel No. Channel 0 Channel 1 Channel 2 Channel 3

F0 C0 F1 C1 F2 C2 F3 C3

Decimal Bits (Octal Bits)

4…20 mA 10101010

0…10V DC/0…20 mA01010101

00 08 01 09 02 10 03 11

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1794-OE4/B Range Selection Bits (Write Word 6)

Channel No. Channel 0 Channel 1 Channel 2 Channel 3

F0 C0 F1 C1 F2 C2 F3 C3

Decimal Bits (Octal Bits)

-10…10V DC 11111111

Off 00000000

Where: C = Configure select bit

00 08 01 09 02 10 03 11

F = Full range bit Off = When configured to off, individual channels will return 0V.

1794-OE4/B Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 Bits 00…03 Current Outputs only – When set (1), the wire on the output is broken or

Bit 04…14 (04…16)

Bits 15 (17) Power Up bit – included in Series B modules only. This bit is 0 in Series A

Write Word 0 Bit 00…14

(00…16)

Bit 15 (17) Channel 0 analog data sign bit.

Write Word 1 Bit 00…14

(00…16)

Bit 15 (17) Channel 1 analog data sign bit.

Write Word 2 Bit 00…14

(00…16)

Bit 15 (17) Channel 2 analog data sign bit.

Write Word 3 Bit 00…14

(00…16)

Bit 15 (17) Channel 3 analog data sign bit.

Write Word 4 Bit 00…03 Chx Safe State Config – for individual channels. These bits control the

Bits 04…15 (04…17)

the load resistance is too high. Bit 00 corresponds to channel 0, bit 01 corresponds to channel 2, and so on.

Not used – set to zero.

Channel 0 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

Channel 1 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

Channel 2 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

Channel 3 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

safe state analog outputs. Bit 00 corresponds to output channel 0, bit 01 corresponds to output channel 1, and so on. 1 = use words 0, 1, 2 or 3 as directed by channel number n 0 = use words 10, 11, 12 or 13 as directed by channel n When bits 00…03 are all cleared (0) simultaneously by a communication error or user choice thru the programmable controller program, word 5 full range and configure select bits are preserved at their last setting.

Not used – set to zero.

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1143

1794-OE4/B Word/Bit Descriptions

Word Decimal Bit Definition

Write Word 5 Bits 00…03 Full range bits (F) for individual channels – Bit 00 corresponds to output

Bits 04…07 Not used – set to zero.

Bits 08…11 (10…13)

Bits 12…15 (14…17)

Write Words

6...9

Bits 00…15 (00…17)

channel 0, bit 01 corresponds to output channel 1, and so on.

Configure select bits (C) for individual channels

Not used – set to zero.

1794-IE4XOE2 Series B – Analog Combo Module Image Table Mapping

Chx SSC

1794-IE4XOE2 Memory Map

Decimal Bit15 14 13 12 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

S Analog Value Channel 0 Read Word 0

S Analog Value Channel 1 Read Word 1

S Analog Value Channel 2 Read Word 2

S Analog Value Channel 3 Read Word 3

PU Not used – set to 0 W1 W0 U3 U2 U1 U0 Read Word 4

S Analog Data – Output Channel 0 Write Word 0

S Analog Data – Output Channel 1 Write Word 4

Not used – set to 0 Chx SSC Write Word 2

Not used C5 C4 C3 C2 C1 C0 0 0 F5 F4 F3 F2 F1 F0 Write Word 3

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1794-IE4XOE2 Memory Map

Decimal Bit15 14 13 12 11 1009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

Not used – set to 0

Not used – set to zero. Write Words 8 and 9

Where: PU = Power up bit – included in Series B modules only.

W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.) U = Underrange bits for 4…20 mA inputs S = Sign bit (in 2’s complement) Chx SSC = Chx Safe State Config C = Configure select bit F = Full range bit

1794-IE4XOE2 Range Selection Bits

Channel No. Input

Decimal Bits (Octal Bits)

4…20 mA 101010101010

0…10V DC/0…20 mA010101010101

-10…10V DC 111111111111

Off 000000000000

Where: C = Configure select bit

Channel 0

F0 C0 F1 C1 F2 C2 F3 C3 F4 C4 F5 C5

00 08

(10)

F = Full range bit Off = When configured to off, individual channels will return 0V.

Input Channel 1

01 09

(11)

Input Channel 2

02 10

(12)

Input Channel 3

03 11

(13)

Output Channel 0

04 12

(14)

Output Channel 1

05 13

(15)

1794-IE4XOE2 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 Bits 00…14

(00…16)

Bit 15 (17) Channel 0 analog date sign bit.

Read Word 1 Bits 00…14

(00…16)

Bit 15 (17) Channel 1 analog date sign bit.

Read Word 2 Bits 00…14

(00…16)

Bit 15 (17) Channel 2 analog data sign bit.

Read Word 3 Bits 00…14

(00…16)

Bit 15 (17) Channel 3 analog data sign bit.

Channel 0 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

Channel 1 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4...20 mA uses all 16 bits.

Channel 2 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA uses all 16 bits.

Channel 3 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4…20 mA used all 16 bits.

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1794-IE4XOE2 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 4 Bit 00…03 Underrange bits (U) – for individual channels (4...20 mA current inputs only)

Bits 04…05 Wire Off bits (W) – Current outputs only – When set (1), the wire on the

Bits 06…14 (06…16)

Bit 15 (17) Power Up bit – included in Series B modules only. This bit is always 0 in

Write Word 0 Bits 00…14

(00…16)

Bit15 (17)

Write Word 1 Bits 00…14

(00…16)

Bit15 (17)

Write Word 2 Bits 00…01 Chx Safe Sate Config – for individual channels. These bits control the safe

Bits 02…15 (02…17)

Write Word 3 Bits 00…05 Full Range bits (F) for individual channels – Bit 00 corresponds to input

Bits 06…07 Not used – set to 0.

Bit 08…13 (10…15)

Bits 14…15 (16…17)

Write Words 4 and 5

-Bit 00 corresponds to input channel 0, bit 01 corresponds to input channel 1, and so on. When set (1), indicates either a broken or open input wire, or input current is @ or below 4 mA.

current output is broken or the load resistance is too high. Bit 00 corresponds to input channel 0, bit 01 corresponds to input channel 1, and so on.

Not used

Series A modules. This bit is set to 1 when all bits in the configuration register (write word 3) are 0 (unconfigured state). The configuration register can be cleared by either a reset, or by the user writing all zeroes to it.

Channel 0 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4...20 mA uses all 16 bits.

Channel 0 analog date sign bit.

Channel 1 Analog Data – 12-bit left justified two’s complement number; unused lower bits are zero; 4...20 mA uses all 16 bits.

Channel 1 analog date sign bit.

state analog outputs. Bit 00 corresponds to output channel 0, bit 01 corresponds to output channel 1. 1 = use words 0 and 1 (analog value) as directed by channel number n 0 = use words 6 and 7 (safe state analog value) as directed by channel n When bits 00...01 are cleared (0) simultaneously by a communication error or user choice through the programmable controller program, word 3 full range and configure select bits are preserved at their last setting.

Not used – set to 0.

channel 0, bit 01 corresponds to output channel 1, and so on.

Configure Select bits (C) for individual channels – Bit 08 corresponds to input channel 0, bit 09 (11) corresponds to input channel 1, bit 10 (12) corresponds to input channel 2, bit 11 (13) corresponds to input channel 3, bit 12 (14) corresponds to output channel 0, and bit 13 (15) corresponds to output channel 1. See Table

Not used – set to 0.

1794-IE4XOE2 Range Selection Bits on page 26.

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1144

1794-IR8 Memory Map

1794-IR8 – RTD Input Analog Module Image Table Mapping

Decimal Bit151413121110 09 08 0706 050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words

Reserved Read Word 0

Channel 0 Input Data Read Word 1

Channel 1 Input Data Read Word 2

Channel 2 Input Data Read Word 3

Channel 3 Input Data Read Word 4

Channel 4 Input Data Read Word 5

Channel 5 Input Data Read Word 6

Channel 6 Input Data Read Word 7

Channel 7 Input Data Read Word 8

Overrange bits Underrange bits Read Word 9

00000Bad

Cal

Cal Done

Cal out of

0 Critical Error bits Pwr Up0 0 0 Read Word 10

Range

8-bit Calibration Mask Cal

Clk

Gain

Notch Frequency Enh MDT Write Word 0 Offset Cal

RTD 3 Type RTD 2 Type RTD 1 Type RTD 0 Type Write Word 1

RTD 7 Type RTD 6 Type RTD 5 Type RTD 4 Type Write Word 2

Where: Enh = Enhanced

MDT = Module Data Type

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1794-IR8 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 00…15 (00…17) Reserved

Read Word 1 00…15 (00…17) Channel 0 Input data

Read Word 2 00…15 (00…17) Channel 1 Input data

Read Word 3 00…15 (00…17) Channel 2 Input data

Read Word 4 00…15 (00…17) Channel 3 Input data

Read Word 5 00…15 (00…17) Channel 4 Input data

Read Word 6 00…15 (00…17) Channel 5 Input data

Read Word 7 00…15 (00…17) Channel 6 Input data

Read Word 8 00…15 (00…17) Channel 7 Input data

Read Word 9 00…07 Underrange bits – these bits are set if the input signal is below the input

08…15 (10…17) Overrrange bits – these bits are set if 1), the input signal is above the

Read Word 10 00…01 Not used – set to 0

02 Reserved

03 Power Up bit – this bit is set (1) until configuration data is received by the

04…06 Critical Error bits – If these bits are anything other than all zeroes, return

07 Unused – set to 0

08 (10) Calibration Out of Range bit – set to 1 if a reference signal is out of

09 (11) Calibration Done bit – set to 1 after an initiated calibration cycle is

10 (12) Calibration Bad bit – set to 1 if the channel has not had a valid

11…15 (13…17) Unused – set to 0.

channel’s minimum range.

input channel’s maximum range, or 2), an open detector is detected.

module.

the module to the factory for repair.

range during calibration.

complete.

calibration.

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30 Communicate With Your Module

1794-IR8 Word/Bit Descriptions

Word Dec. Bits

(Octal Bits)

Write Word 0 00…01 Module Data Type

02 Enhanced mode select – Measures voltage drop across a precision resistor in the module to compare

03…05 A/D Filter First Notch Frequency

06 Gain Offset Calibration – This bit is set during gain calibration/ reset during offset calibration.

07 Calibration Clock – This bit must be set to 1 to prepare for a calibration cycle; then reset to 0 to initiate

08…15 Calibration Mask – The channel, or channels, to be calibrated will have the correct mask bit set. Bit 0

Description

Bit 01 00

0 0 °C (default)

01°F

1 0 Bipolar counts scaled between -32768... 32767

1 1 Unipolar counts scaled between 0...65535

with the unknown input.

Bit 05 04 03 Definition

0 0 0 10 Hz (default)

00125 Hz

01050 Hz

01160 Hz

100100 Hz

101250 Hz

110500 Hz

1111000 Hz

calibration.

corresponds to channel 0, bit 1 to channel 1, and so on.

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1794-IR8 Word/Bit Descriptions

Write Word 1 00…03 Channel 0 RTD Type

Bit 03 02 01 00 RTD Type – Range

0 0 0 0 Resistance (default)

0 0 0 1 No sensor connected – do not scan

0010100 Ω Pt α = 0.00385 Euro (-200...630 °C)

0011100 Ω Pt α = 0.003916 U.S. (-200...630 °C)

0100200 Ω Pt α = 0.00385 (-200...630 °C)

0101500 Ω Pt α = 0.00385 (-200...630 °C)

0 1 1 0 Reserved

011110 Ω Copper (-200...260 °C)

1000120 Ω Nickel (-60...250 °C)

1001100 Ω Nickel (-60...250 °C)

1010200 Ω Nickel (-60...250 °C)

1011500 Ω Nickel (-60...250 °C)

1 1 0 0 Reserved

1101…1111 – Reserved

04…07 Channel 1 RTD Type (see bits 00…03)

08…11 Channel 2 RTD Type (see bits 00…03)

12…15 Channel 3 RTD Type (see bits 00…03)

Write Word 2 00…03 Channel 4 RTD Type (see write word 2, bits 00…03)

04…07 Channel 5 RTD Type (see write word 2, bits 00…03)

08…11 Channel 6 RTD Type (see write word 2, bits 00…03)

12…15 Channel 7 RTD Type (see write word 2, bits 00…03)

Communicate With Your Module 31

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1145

1794-IT8 Read and Write Words

1794-IT8 – Thermocouple Input Module Image Table Mapping

Dec. Bit 151413121110 09 08 07 06 050403 02 01 00 Size

Octal Bit171615141312 11 10 07 06 050403 02 01 00 Read/Write

Words

Reserved Read Word 0

Channel 0 Input Data Read Word 1

Channel 1 Input Data Read Word 2

Channel 2 Input Data Read Word 3

Channel 3 Input Data Read Word 4

Channel 4 Input Data Read Word 5

Channel 5 Input Data Read Word 6

Channel 6 Input Data Read Word 7

Channel 7 Input Data Read Word 8

Overrange Bits Underrange Bits Read Word 9

00000Bad

8-bit Calibration Mask Cal

Cal

Cal Done

Cal out of Range

0 Critical Error Pwr UpBad TC

Typ e Selected

Gain

Clk

Offset

Notch Frequency

FFE Module

CJC Over

Data Type

CJC Under

Read Word 10

Write Word 0

Cal

Thermocouple3 Type Thermocouple 2 Type Thermocouple 1 Type Thermocouple 0 Type Write Word 1

Thermocouple 7 Type Thermocouple 6 Type Thermocouple 5 Type Thermocouple 4 Type Write Word 2

Where: FFE = Fixed Filter Enable

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1794-IT8 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 00…15 (00…17) Reserved

Read Word 1 00…15 (00…17) Channel 0 Input data

Read Word 2 00…15 (00…17) Channel 1 Input data

Read Word 3 00…15 (00…17) Channel 2 Input data

Read Word 4 00…15 (00…17) Channel 3 Input data

Read Word 5 00…15 (00…17) Channel 4 Input data

Read Word 6 00…15 (00…17) Channel 5 Input data

Read Word 7 00…15 (00…17) Channel 6 Input data

Read Word 8 00…15 (00…17) Channel 7 Input data

Read Word 9 00…07 (00…07) Underrange bits – These bits are set if the input signal is

08…15 (10…17) Overrrange bits – These bits are set if 1), the input signal

Read Word 10 00 Not used – set to 0.

01 Cold Junction sensor underrange bit – This bit is set if

02 Cold Junction sensor overrange bit – This bit is set if

03 Power Up bit – This bit is set (1) until configuration data is

04…06 Critical Fault bits – If these bits are anything other than

07 Unused – Set to 0.

08 (10) Calibration Out of Range bit – Set to 1 if a reference

09 (11) Calibration Done bit – Set to 1 after an initiated

10 (12) Calibration Bad bit – Set to 1 if the channel has not had a

11…15 (13…17) Unused – Set to 0.

below the input channel’s minimum range.

is above the input channel’s maximum range, or 2), an open detector is detected.

the cold junction temperature is below 0 °C.

the cold junction temperature is above 70 °C.

received by the module.

zero, return the module to the factory for repair.

signal is out of range during calibration.

calibration cycle is complete.

valid calibration.

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1794-IT8 Word/Bit Description

Word Dec. Bits

(Octal Bits)

Write Word 0 00…01 Module Data Type

02 Fixed Filter Enable – When this bit is set (1), a software digital filter is enabled. This filter settles to 100%

03…05 Notch Frequency

06 Gain Offset Calibration – This bit is set during gain calibration/ reset during offset calibration.

07 Calibration Clock – This bit must be set to 1 to prepare for a calibration cycle; then reset to 0 to

08…15 (10…17) Calibration Mask – The channel, or channels, to be calibrated will have the correct mask bit set. Bit 0

Write Word 1 00…03 Channel 0 Thermocouple Type

Description

Bit 01 00 Definition

0 0 °C (default)

01°F

1 0 Bipolar counts scaled between -32768…32767

1 1 Unipolar counts scaled between 0…65535

of a Full Scale step input in 60 scans.

Bit 05 04 03

0 0 0 10 Hz (default)

001 25 Hz

010 50 Hz

011 60 Hz

100 100 Hz

101 250 Hz

110 500 Hz

1 1 1 1000 Hz

initiate calibration.

corresponds to channel 0, bit 1 to channel 1, and so on.

Bit 03 02 01 00 Thermocouple Type – Range

0 0 0 0 Millivolts (default)

0 0 0 1 B 300...1800 °C (572...3272 °F)

0 0 1 0 E -270...1000 °C (-454...1835 °F)

0 0 1 1 J -210...1200 °C (-346...2192 °F)

0 1 0 0 K -71...1372 °C (-95...2502 °F)

0 1 0 1 R -50...1768 °C (-58...3214 °F)

0 1 1 0 S -50...1768 °C (-58...3214 °F)

0 1 1 1 T -73...400 °C (-99...752 °F)

1 0 0 0 C 0...2315 °C (32...4199 °F)

1 0 0 1 N -270...1300 °C (-450...2372 °F)

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1794-IT8 Word/Bit Description

Communicate With Your Module 35

Word Dec. Bits

(Octal Bits)

Write Word 1 00…03 Channel 0 Thermocouple Type

04…07 Channel 1 Thermocouple Type (see bits 00…03)

08…11 Channel 2 Thermocouple Type (see bits 00…03)

12…15 Channel 3 Thermocouple Type (see bits 00…03)

Write Word 2 00…03 Channel 4 Thermocouple Type (see write word 13, bits 00…03)

04…07 Channel 5 Thermocouple Type (see write word 13, bits 00…03)

08…11 Channel 6 Thermocouple Type (see write word 13, bits 00…03

12…15 Channel 7 Thermocouple Type (see write word 13, bits 00…03)

Description

Bit 03 02 01 00 Thermocouple Type – Range

1 0 1 0 TXK/XK(L) -200...800 °C (-328...1472 ⋅F)

10 1 1 Reserved

1 1 0 0 Module reports cold junction sensor temperature for

channels 00…03

1 1 0 1 Module reports cold junction sensor temperature for

channels 04…07

11 1 0 Reserved

1 1 1 1 No input device connected (do not scan)

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1146

1794-IRT8 – Thermocouple/RTD Input Module Image Table Mapping

1794-IRT8 Thermocouple/RTD/mV Input Module Read Words

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size

17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write

Channel 0 Input Data

Channel 1 Input Data

Channel 2 Input Data

Channel 3 Input Data

Channel 4 Input Data

Channel 5 Input Data

Channel 6 Input Data

Channel 7 Input Data

Overrange Alarm bits (channel 0 = bit 08, and so on) Underrange Alarm bits (channel 0 = bit 00, and so on)

Ch7

Ch6

Ch5

Ch4

Ch3

Ch2

Ch1

Fault

Ch0 Fault

CJC 2 Alarm

CJC 1 Alarm

Diagnostic Status

EDT command response EDT response data

Not used Data Format Fault

Mode Ch 0…3

Fault Mode Ch 4…7

Reference Jct. Filter Cutoff

Words

Write 0

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1794-IRT8 Thermocouple/RTD/mV Input Module Read Words

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size

17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write

Sensor Ch 4…7

Sensor Mode

Sensor Type Ch 4…7 Sensor Ch 0…3 Sensor Mode

Ch 0…3

Sensor Type Ch 0…3

Words

Write 1

Ch 4…7

RTD Offset Ch 7

RTD Offset Ch 6

RTD Offset Ch 5

RTD Offset Ch 4

RTD Offset Ch 3

EDT command EDT command data

RTD Offset Ch 2

RTD Offset Ch 1

RTD Offset Ch 0

Write 2

Write 3

1794-IRT8 Word/Bit Descriptions for Block Transfer Words

Word Decimal Bit Definition

Read Word 0 00…15 (00…17) Channel 0 Input data

Read Word 1 00…15 (00…17) Channel 1 Input data

Read Word 2 00…15 (00…17) Channel 2 Input data

Read Word 3 00…15 (00…17) Channel 3 Input data

Read Word 4 00…15 (00…17) Channel 4 Input data

Read Word 5 00…15 (00…17) Channel 5 Input data

Read Word 6 00…15 (00…17) Channel 6 Input data

Read Word 7 00…15 (00…17) Channel 7 Input data

Read Word 8 00…07 Underrange bits – These bits are set if the input signal is below the input

08…15 (10…17) Overrange bits – These bits are set if 1), the input signal is above the

channel’s minimum range. Bit 00 corresponds to channel 0, bit 01 corresponds to channel 1, and so on.

input channel’s maximum range, or 2), an open detector is detected. Bit 08 (10) corresponds to channel 0, bit 09 (11) corresponds to channel 1, and so on.

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1794-IRT8 Word/Bit Descriptions for Block Transfer Words

Word Dec. Bits

(Octal Bits)

Write Word 0 00…02 Inpt Filter Cutoff Bits

03…05 Reference Junction – Used when input type is set to thermocouple and sensor mode is set to internal

06…07 Fault Mode Bits – When a bit is set (1), fault mode is enabled for that channel. Bit 06 corresponds to

08…11 (10…13)

12…15 (14…17)

Description

Bit 02 01 00 Filter Time Constants – Actual filtering depends on the module’s mode

0 0 0 Hardware filtering only (default filtering).

00125 ms

010100 ms

011250 ms

100500 ms

1011 s

1102 s

1115 s

compensation. Sets a fixed reference junction to compensate all thermocouple channels.

Bit 05 04 03 Reference Junction

0000 °C

00120 °C

01025 °C

01130 °C

10040 °C

10150 °C

11060 °C

11170 °C

channels 0…3; bit 07 corresponds to channels 4…7. 0 = disabled 1 = enable wire-off detection

Data Format – Module defaults to -4000...10000 in millivolt mode, and 0...5000 in ohms mode with implied decimal points (for example -40.00, 0.0 Ω ).

Bit 11 10 09 08 Data type for channels 0-7

0 0 0 0 °C (implies decimal point XXXX.X)

0 0 0 1 °F (implies decimal point XXXX.X)

0 0 1 0 °K (implies decimal point XXXX.X)

0 0 1 1 -32767...3267

01000...65535

0101...1111 not used

Not used

of operation.

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Word Dec. Bits

(Octal Bits)

Write Word 1 00…03 Sensor Type (Thermocouple or RTD)

00…03 Thermocouple Type

Description

RTD Type

Bit 03 02 01 00 Sensor type for channels 0…3

0 0 0 0 Resistance (default)

0 0 0 1 100 Ω Pt α = 0.00385 Euro (-200...870 °C)

0 0 1 0 200 Ω Pt α = 0.00385 Euro (-200...400 °C)

0 0 1 1 100 Ω Pt α = 0.003916 U.S. (-200...630 °C)

0 1 0 0 200 Ω Pt α = 0.003916 U.S. (-200...400 °C)

0 1 0 1 100 Ω Nickle (-60...250 °C)

0 1 1 0 200 Ω Nickle (-60...200 °C)

0 1 1 1 120 Ω Nickle (-80...320 °C)

100010 Ω Copper (-200...260 °C)

1001...1111 not used

Bit 03 02 01 00 Sensor type for channels 0...3

0 0 0 0 mV (default)

0 0 0 1 B 300...1800 °C (572...3272 °F)

0 0 1 0 E -270...1000 °C (-454...1835 °F)

0 0 1 1 J -210...1200 °C (-346...2192 °F)

0 1 0 0 K -270...1372 °C (-454...2502 °F)

0 1 0 1 TXK/XK(L) -200...800 °C (-328...1472 °F)

0 1 1 0 N -270...1300 °C (-450...2372 °F)

0 1 1 1 R -50...1768 °C (-58...3214 °F)

1 0 0 0 S -50...1768 °C (-58...3214 °F)

1 0 0 1 T -270...400 °C (-454...752 °F)

1010...1111 not used

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Word Dec. Bits

(Octal Bits)

Write Word 1 04…05 Sensor Mode Select bits

06…07 Sensor

08…11 (10…13)

Description

Bit 05 04 Sensor mode select for channels 0...3

Thermocouple

0 0 External compensation – uses cold junction sensors

0 1 Internal compensation – uses the value selected for "reference junction selection"

1 0 No compensation (Data is referenced to 0 °C)

1 1 Differential measurement between 2 channels (0…1, 2…3, 4…5, 6…7)

RTD

0 0 1-wire RTD no compensation

0 1 2-wire RTD with user selected compensation

1 0 3-wire RTD

1 1 4-wire RTD

Bit 07 06 Input type selection for channels 0…3

0 0 Thermocouple

0 1 RTD

1 0 Not used

Sensor Mode Select bits

RTD Type

Bit 11 10 09 08 Sensor type for channels 4...7

0 0 0 0 Resistance (default)

0 0 0 1 100 Ω Pt α = 0.00385 Euro (-200...870 °C)

0 0 1 0 200 Ω Pt α = 0.00385 Euro (-200...400 °C)

0 0 1 1 100 Ω Pt α = 0.003916 U.S. (-200...630 °C)

0 1 0 0 200 Ω Pt α = 0.003916 U.S. (-200...400 °C)

0 1 0 1 100 Ω Nickle (-60...250 °C)

0 1 1 0 200 Ω Nickle (-60...200 °C)

0 1 1 1 120 Ω Nickle (-80...320 °C)

100010 Ω Copper (-200...260 °C)

1001...1111 not used

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Word Dec. Bits

(Octal Bits)

Write Word 1 08…11

(10…13)

12…13 (14…15)

14…15 (16…17)

Description

Thermocouple Type

Bit 11 10 09 08 Sensor type for channels 4...7

0 0 0 0 mV (default)

0 0 0 1 B 300...1800 °C (572...3272 °F)

0 0 1 0 E -270...1000 °C (-454...1835 °F)

0 0 1 1 J -210...1200 °C (-346...2192 °F)

0 1 0 0 K -270...1372 °C (-454...2502 °F)

0 1 0 1 TXK/XK(L) -200...800 °C (-328...1472 °F)

0 1 1 0 N -270...1300 °C (-450...2372 °F)

0 1 1 1 R -50...1768 °C (-58...3214 °F)

1 0 0 0 S -50...1768 °C (-58...3214 °F)

1 0 0 1 T -270...400 °C (-454...752 °F)

1010...1111 not used

Sensor Mode Select bits

Bit 13 12 Sensor mode select for channels 4…7

Thermocouple Type

0 0 External compensation – uses cold junction sensor.

0 1 Internal compensation – uses the value selected for reference junction.

1 0 No compensation (Data is referenced to 0 °C).

1 1 Differential measurement between 2 channels.

RTD

0 0 2-wire RTD no compensation.

0 1 2-wire RTD with loop resistance compensation.

103-wire RTD.

114-wire RTD.

Sensor

Bit 15 14 Input type selection for channels 4…7

0 0 Thermocouple.

01RTD.

10Not used.

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Word Dec. Bits

(Octal Bits)

Write Word 2 00…15

(00…17)

Write Word 3 00…07 Extended Data Table Command bits – These bits are written to the module during calibration. They are

08…14 (10…16)

15 (17) Reserved for factory use only.

Description

RTD Loop Resistance Offset S bits – used when input type is set to RTD and sensor mode select is set to

2-wire with loop resistance compensation. Allows you to set the type of RTD loop resistance compensation used for all RTDs or one of three fixed values for all channels. NOTE: Not applicable to 10 Ω copper RTD, which defaults to 0 Ω.

Bit 01 00 RTD channel 0.

Bit 03 02 RTD channel 1.

Bit 05 04 RTD channel 2.

Bit 07 06 RTD channel 3.

Bit 09 08 RTD channel 4.

Bit 11 10 RTD channel 5.

Bit 13 12 RTD channel 6.

Bit 15 14 RTD channel 7.

0 0 Use channel loop compensation value stored during calibration procedure for

2-wire RTD (default = 0 Ω).

015 Ω

1010 Ω

1115 Ω

used to define offset, gain and general channel calibration.

Extended Data Table Command bits – These bits are written to the module during calibration. They are used to select channel calibration action.

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1147

1794-IF4I – 4-Input Isolated Analog Module Image Table Mapping

1794-IF4I Isolated Analog Input Module Read Words

Dec. Bit 15141312111009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write

Analog Value Channel 0 Read Word 0

Analog Value Channel 0 Read Word 1

Analog Value Channel 0 Read Word 2

Analog Value Channel 0 Read Word 3

Real Time Sample Read Word 4

PUFPCF0Reserved 00000BDDN0Read Word 5

00000000V3V2V1V0U3U2U1U0Read Word 6

0000000000000000Write Word 0

Chnl 3 Filter Chnl 2 Filter Chnl 1 Filter Chnl 0 Filter Write Word 1

Chnl 3 Configuration Chnl 2 Configuration Chnl 1 Configuration Chnl 0 Configuration Write Word 2

0 Real Time Sample Programmed Interval Write Word 3

IC 1 TR IT 0 0 0 0 RV QK CK GO Channel Number Write Word 4

Not used Write Word 5

Not used Write Word 6

Word 7 Not used Write Word 7

Words

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1794-IF4I Isolated Analog Input Module Read Words

Dec. Bit 15141312111009080706050403020100Size

Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write

Where: PU = Power up unconfigured state

FP = Field power off CF = Configuration mode BD = Calibration bad DN = Calibration done U = Underrange for specified channel V = Overrange for specified channel IC = Initiate configuration bit TR = Transparent bit IT = Interrupt toggle bit RV = Revert to defaults bit QK = Quick calibration CK = Calibration clock GO = Gain offset select

Words

Setting the Input Filter

Bits Channel

03 02 01 00 Input 0

07 06 05 04 Input 1

11 10 09 08 Input 2

15 14 13 12 Input 3

A/D Conversion Rate Low Pass Filter

00001200 Hz No low pass

00011200 Hz 100 ms low pass

00101200 Hz 500 ms low pass

00111200 Hz 1000 ms low pass

0100600 Hz No low pass

0101600 Hz 100 ms low pass

0110600 Hz 500 ms low pass

0111600 Hz 1000 ms low pass

1000300 Hz No low pass

1001300 Hz 100 ms low pass

1010300 Hz 500 ms low pass

1011300 Hz 1000 ms low pass

1100150 Hz No low pass

1101150 Hz 100 ms low pass

1110150 Hz 500 ms low pass

1111150 Hz 1000 ms low pass

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Communicate With Your Module 45

Configuring Your Input Channel

Input Channel Configuration

03 02 01 00 Set these bits for Channel 0.

07 06 05 04 Set these bits for Channel 1.

11 10 09 08 Set these bits for Channel 2.

15 14 13 12 Set these bits for Channel 3.

Bit Settings Input

Values

Data Format % Underrange/

% Overrange

Input Range Hexadec. Dec.

0000Channel not configured

00014...20 mA signed 2’s complement 4% Under; 4% Over<0000...7878> <0000...30840> 7.5 ms 5.0 ms

0010± 10V signed 2’s complement 2% Under; 2% Over<831F...7CE1><-31969...31969>2.5 ms 2.5 ms

0011± 5V signed 2’s complement 4% Under; 4% Over<8618...79E8> <-31208...31208> 2.5 ms 2.5 ms

01000...20 mA signed 2’s complement % 0% Under; 4% Over<0...2710> <0...10000> 7.5 ms 5.0 ms

01100...10V signed 2’s complement % 0% Under; 2% Over<0...2710> <0...10000> 5.0 ms 5.0 ms

0111± 10V singed 2’s complement % 2% Under; 2% Over<-D8F0...2710><-10000...10000>5.0 ms 5.0 ms

10000...20 mA binary 0% Under; 4% Over<0000...F3CF> <0000...62415> 2.5 ms 2.5 ms

10014...20 mA

(1)

binary 4% Under; 4% Over <0000...F0F1> <0000...61681> 7.5 ms 5.0 ms

10100...10V binary 0% Under; 2% Over<0000...F9C2> <0000...63938> 2.5 ms 2.5 ms

10110...5V binary 0% Under; 4% Over<0000...F3CF> <0000...62415> 2.5 ms 2.5 ms

1100± 20 mA offset binary, 8000H = O mA4% Under; 4% Over<0618...F9E8> <1560...63976> 2.5 ms 2.5 ms

11014...20 mA offset binary, 8000H = 4 mA4% Under; 4% Over<8000...F878> <32768...63608> 7.5 ms 5.0 ms

1110± 10V offset binary, 8000H = OV 2% Under; 2% Over<031F...FCE1><799...64737> 2.5 ms 2.5 ms

1111± 5V offset binary, 8000H = OV 4% Under; 4% Over<0618...F9E8> <1560...63976> 2.5 ms 2.5 ms

(1)

Underrange for 4...20 mA occurs in the blind area below 0 (3.2 mA).

(2)

<and> indicates the overrun beyond actual range (about 5%).

(2)

Module Update Rate (RTSI = 0) (RTSI = 0), IT = 1

1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Word Decimal Bit

(Octal Bit)

Read Word 0 Bit 00…15

(00…17)

Read Word 1 Bit 00…15

(00…17)

Read Word 2 Bit 00…15

(00…17)

Read Word 3 Bit 00…15

(00…17)

Read Word 4 Bit 00…15

(00…17)

Definition

Channel 0 Analog Data – Real time input data per your configuration.

Channel 1 Analog Data – Real time input data per your configuration.

Channel 2 Analog Data – Real time input data per your configuration.

Channel 3 Analog Data – Real time input data per your configuration.

Real Time Sample – the elapsed time in increments programmed by the real time

sample interval.

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1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Word Decimal Bit

(Octal Bit)

Read Word 5 Bit 00 Reserved.

Bit 01 Calibration Done bit (DN) – This bit is set to 1 after a calibration cycle is

Bit 02 Calibration Bad bit (BD) – This bit is set to 1 if the channel calibration coefficients

Bits 03…07 Set to 0.

Bits 08…11 (10…12)

Bit 12 (14) Set to 0.

Bit 13 (15) Configuration Mode bit (CF) – This bit is set (1) when the calibration mode is

Bit 14 (16) Field Power Off bit (FP) – This bit is set (1) when the 24V field power fails. When

Bit 15 (17) Power Up (unconfigured state) bit (PU) – This bit is set (1) when the configuration

Read Word 6 Bits 00…03 Underrange bits (U) -These bits are set (1) when the input channel is below a preset

Bits 04…07 Overrange bits (V) – These bits are set (1) when the input channel is above a preset

Bits 08…15 (10…17)

Write Word 0 Bits 00…14

(00…16)

Write Word 1 Channels 0...3 Filter Selections (refer to Setting the Input Filter)

Bits 00…03 Channel 0 Filter Setting.

Bits 04…07 Channel 1 Filter Setting.

Bits 08…11 (10…13)

Bits 12…15 (14…17)

Write Word 2 Channel Configuration (See Configuring Your Input Channel

Bits 00…03 Channel 0 Configuration.

Bits 04…07 Channel 1 Configuration.

Bits 08…11 (10…13)

Bits 12…15 (14…17)

Write Word 3 Bits 00…14

(00…16)

Bit 15 (17) Not used. Set to 0.

Definition

completed.

cannot be saved or be read properly.

Reserved.

selected (bit 15, word 5 in the block transfer write set to 1). When this bit is set (1), the module status indicator flashes.

this bit is set (1), the module status indicator flashes.

word is all zeroes (0) due to a reset (adapter power cycle or module insertion) or a cleared configuration word (all 0). When this bit is set (1), the module status indicator flashes.

limit as defined by the configuration selected. U0 (bit 00) corresponds to input channel 0 and U1 (bit 01) corresponds to input channel 1, and so on. See Configuring Your

Input Channel on page 45.

limit as defined by the configuration selected. Bit 04 corresponds to input channel 0 and bit 05 corresponds to input channel 1, and so on. See Configuring Your Input

Channel on page 45.

Not used. Set to 0.

Channel 2 Filter Setting.

Channel 3 Filter Setting.

on page 45.)

Channel 2 Configuration.

Channel 3 Configuration.

Real Time Sample Interval – Programs the interval of the real time sample. Can be varied from 0...30 s (3000 decimal). Resolution is in ms with granularity in 5 ms steps.

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1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Communicate With Your Module 47

Word Decimal Bit

Write Word 4 Bit 00…03 Channel Calibration Selection bit. – When this bit is set (1), the channel can be

Write Words 5…7

(Octal Bit)

Bit 04 Gain/Offset Calibration bit (GO) – When this bit is cleared, a 0...1...0 transition of

Bit 05 Calibration Clock bit (CK) – When this bit is set to 1 (calibration mode), the

Bit 06 Quick Calibration bit (QK) – Normally reset (0). When this bit is set (1) during a

Bit 07 Revert to Defaults bits (RV) – Normally reset (0). When set (1) during a calibration

Bit 08…11 (10…14)

Bit 12 (14) Interrupt Toggle bit (IT) – This bit, when set (1), permits interleaving of module

Bit 13 (15) Transparent bit (TR) – This bit, when set to 1, permits configuration to be changed

Bit 14 (16) Set to 1.

Bit 15 (17) Initiate Configuration bit (IC) – When set (1), instructs the module to enter

Bits 00…15 (00…17)

Definition

calibrated using the calibration clock bit (CK). Bit 00 corresponds to input channel 0, bit 01 corresponds to channel 1, bit 02 corresponds to input channel 2, bit 03 corresponds to input channel 3.

the CK bit performs on offset calibration. When this bit is 1, the module is directed to do a gain calibration.

calibration coefficient for the selected channels is accepted. When this bit is reset (0), the accepted calibration coefficients for the selected channels are stored, applied, and the calibration mode exited. Monitor status bits DN and BD for successful calibration.

calibration sequence, the calibration coefficient is stored to all related configurations for the selected channels. NOTE: This method of calibration quickly calibrates the selected channels, however you will not be within the rated accuracy of the module.

procedure, default values for selected channels are used for the calibration coefficient. NOTE: You will not be within the rated accuracy of the module.

Not used. Set to 0.

interrupts ensuing exchange of critical data when channels are configured for their fastest update times. RTSI and "no low pass filter" must be 0 in order for the module to recognize this feature. This groups data update rates for all channels to the slowest configuration setting of any of the channels. In addition, channel update rates for all channels with a 7.5 ms update rate are reduced to 5.0 ms. When reset (0), real time sampling and filter features are enabled.

without using the IC bit.

configuration mode. Present configuration data prior to or coincident with IC being set. Once IC returns to 0, the configuration is applied and any subsequent configuration information is ignored until IC is toggled.

Not used.

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1148

1794-OF4I – 4-Output Isolated Analog Module Image Table Mapping

1794-OF4I Isolated Analog Output Module Read Words

Word/Dec. Bit 15141312111009080706050403020100

Word/Octal Bit 17161514131211100706050403020100

Read Word 0 Read Back Channel 0

Read Word 1 Read Back Channel 1

Read Word 2 Read Back Channel 2

Read Word 3 Read Back Channel 3

Read Word 4 PUFPCF0Reserved 00000BDDN0

Read Word 5 0000P3P2P1P00000W3W2W1W0

Write Word 0 ENS1S00000000000000

Write Word 1 Output Data – Channel 0

Write Word 2 Output Data – Channel 1

Write Word 3 Output Data – Channel 2

Write Word 4 Output Data – Channel 3

Write Word 5 Output Ch 3

Configuration

Output Ch 2 Configuration

Output Ch 1 Configuration

Output Ch 0 Configuration

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1794-OF4I Isolated Analog Output Module Read Words

Word/Dec. Bit 15141312111009080706050403020100

Word/Octal Bit 17161514131211100706050403020100

Write Word 6 IC 1 TR IT Q3 Q2 Q1 Q0 RV QK CK GO Channel Number

Write Words 7 and 8

Where: PU = Power up unconfigured state

Not used

FP = Field power off CF = In configuration mode BD = Calibration bad OR = Reference calibration signal is out of range P0...P3 = Output holding in response to Q0...Q3 W0...W3 =Wire off current loop status for channels 0...3 respectively — Not used on voltage outputs. EN = Enable outputs; 0 = output follows S1/S0, 1 = output enabled IC = Initiate configuration bit TR = Transparent bit IT = Interleave Interrupts Q0...Q3 = Request for outputs to hold RV = Revert to defaults bit QK = Quick calibration CK = Calibration clock GO = Gain offset calibration

1794-OF4I – Isolated Output Module Output Configuration

Configuration Bits MSD LSD

Nominal Range

Data Type Output Values

Hexadecimal Decimal

0 0 0 1 4...20 mA 2’s complement <0000..7878> <0000...30840> 5.0 ms

0 0 1 0 ±10V 2’s complement <831F...79E8> <-31208...31208> 2.5 ms

0 0 1 1 ±5V 2’s complement <8618...79E8> <-31208...31208> 2.5 ms

0 1 0 0 0...20 mA 2’s complement % <0...2710> <0...10000> 5.0 ms

0 1 0 1 4...20V 2’s complement % <0...2710> <0...10000> 5.0 ms

0 1 1 0 0...10V 2’s complement % <0...2710> <0...10000> 5.0 ms

0 1 1 1 ± 10V 2’s complement <-D8F0...2710> <-10000...10000> 5.0 ms

1 0 0 0 0...20 mA binary <0000...F3CF> <0000...62415> 2.5 ms

1 0 0 1 4...20 mA binary <0000...F0F1> <0000...61681> 5.0 ms

1 0 1 0 0...10V binary <0000...F3CF> <0000...62415> 2.5 ms

1 0 1 1 0...5V binary <0000...F3CF> <0000...62415> 2.5 ms

1 1 0 0 ±2 0 mA offset binary <0000...F9E8> <0000...63976> 2.5 ms

1 1 0 1 4...20 mA offset binary <8000...F878> <32768...63608> 5.0 ms

1 1 1 0 ± 10V offset binary <0618...F9E8> <1560...63976> 2.5 ms

1 1 1 1 ± 5V offset binary <0618...F9E8> <1560...63976> 2.5 ms

(1)

< and > indicate the overrun beyond actual range (about 5%).

(1)

Update Rate

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1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Read Word Decimal Bit

(Octal Bit)

Read Word 0 Bit 00…15

(00…17)

Read Word 1 Bit 00…15

(00…17)

Read Word 2 Bit 00…15

(00…17)

Read Word 3 Bit 00…15

(00…17)

Read Word 4 Bit 00 Reserved.

Bit 01 Calibration Done bit (DN) – This bit is set to 1 after a calibration cycle

Bit 02 Calibration Bad bit (BD) – This bit is set to 1 if the channel calibration coefficients

Bits 03…07 Set to 0.

Bits 08…11 (10…12)

Bit 12 (14) Set to 0.

Bit 13 (15) Configuration Mode bit (CF) – This bit is set (1) when the calibration mode is

Bit 14 (16) Field Power Off bit (FP) – This bit is set (1) when the 24V field power fails. When

Bit 15 (17) Power Up (unconfigured state) bit (PU) – This bit is set (1) when the configuration

Read Word 5 Bits 00…03 Wire-off Status bits (W) – These bits, when set (1), indicate the corresponding

Bits 04…07 Set to 0.

Bits 10…11 (12…13)

Bits 12…15 (13…17)

Definition

Read Back Channel 0 – During normal operation, it is a copy of the output of

channel 0. During an EN transition, it is the condition of the output as determined by S1 and S0. Read back is an image of what the user has sent as output to the module; no checks are performed on the data.

Read Back Channel 1 – During normal operation, it is a copy of the output of channel 1. During an EN transition, it is the condition of the output as determined by S1 and S0. Read back is an image of what the user has sent as output to the module; no checks are performed on the data.

Read Back Channel 2 – During normal operation, it is a copy of the output of channel 2. During an EN transition, it is the condition of the output as determined by S1 and S0. Read back is an image of what the user has sent as output to the module; no checks are performed on the data.

Read Back Channel 3 – During normal operation, it is a copy of the output of channel 3. During an EN transition, it is the condition of the output as determined by S1 and S0. Read back is an image of what the user has sent as output to the module; no checks are performed on the data.

is completed.

cannot be saved or be read properly.

Reserved.

selected (bit 15, word 5 in the block transfer write set to 1). When this bit is set (1), the module status indicator flashes.

this bit is set (1), the module status indicator flashes.

word is all zeroes (0) due to a reset (adapter power cycle or module insertion) or a cleared configuration word (all 0). When this bit is set (1), the module status indicator flashes.

current output channel is open. W0 corresponds to channel 0, W1 corresponds to channel 2, and so on.

Hold Output bits (P) – These bits are set (1) in response to Q0 or Q1 and a transition of the EN bit. When P0 or P1 is set (1), they indicate that the output is holding at the level in the readback data for the respective channel. These bits return to 0 when the output data matches the readback output data.

Set to 0.

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1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Communicate With Your Module 51

Write Word Decimal Bit

(Octal Bit)

Write Word 0 Bit 00…12

(00…14)

Bit 13…14 (15…16)

Bit 15 (17) Output Enable bit (EN) – When set (1), the outputs are enabled. This bit must be set in

Write Word 1 Bit 00…15

(00…17)

Write Word 2 Bit 00…15

(00…17)

Write Word 3 Bit 00…15

(00…17)

Write Word 4 Bit 00…15

(00…17)

Write Word 5 Channel Configuration (see 1794-OF4I Isolated Analog Output Module Read Words

Bits 00…03 Channel 0 Configuration

Bit 04…07 Channel 1 Configuration

Bit 08…11 (10…13)

Bit 12…15 (14…17)

Definition

Not used.

Safe State Configure (S1/S0) – When EN is 0, these bits designate the source of the safe state data. Bit 13 = 0, bit 14 = 1 – reset outputs to 0V/0mA (used with 1794-ASB/C) Bit 13 = 1, bit 14 = 1 – hold output at its current level (used with 1794-ASB/C) Bit 13 = 0, bit 14 = 0 – Safe state data is in output data words

order for the real time data to appear at the outputs. If this bit is not set (0), the outputs will be determined by S1/S0.

Channel 0 output data – The output data is real time data formatted to the selected configuration. This data is also safe state data when directed by S1 and S0.

Channel 1 output data – The output data is real time data formatted to the selected configuration. This data is also safe state data when directed by S1 and S0.

Channel 2 output data – The output data is real time data formatted to the selected configuration. This data is also safe state data when directed by S1 and S0.

Channel 3 output data – The output data is real time data formatted to the selected configuration. This data is also safe state data when directed by S1 and S0.

Channel 2 Configuration

Channel 3 Configuration

on page 48)

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52 Communicate With Your Module

1794-IF4I Isolated Analog Input Module Word/Bit Descriptions

Write Word Decimal Bit

Write Word 6 Bits 00…03 Calibrate bit – When this bit is set (1), the channel can be calibrated using the

Write Words 7 and 8

(Octal Bit)

Bit 04 Gain/Offset Calibration bit (GO) – When this bit is cleared, a 0 to 1 to 0 transition of

Bit 05 Calibration Clock bit (CK) – When this bit is set to 1 (calibration mode), the

Bit 06 Quick Calibration bit (QK) – Normally reset (0). When this bit is set (1) during a

Bit 07 Revert to Defaults bit (RV) – Normally reset (0). When set (1) during a calibration

Bits 08…11 (10…13)

Bit 12 (14) Interleave Interrupt (IT) – This bit, when set (1), permits interleaving of module

Bit 13 (15) Transparent bit (TR) – This bit, when set (1), permits configuration to be changed

Biut 14 (16) Set to 1.

Bit 15 (17) Initiate Configuration bit (IC) – When set (1), instructs this the module to enter

Bits 00…15 (00…17)

Definition

calibration clock bit (CK). Bit 00 corresponds to output channel 0, bit 01 corresponds to output channel 1, bit 02 corresponds to output channel 3, bit 03 corresponds to output channel 4.

the CK bit performs on offset calibration. When this bit is set (1), the module is directed to do a gain calibration.

calibration sequence, the calibration coefficient is stored to all related configurations for the selected channels. NOTE: Although this method of calibration quickly calibrates the selected channels, they will not be within the rated accuracy of the module.

procedure, default values for selected channels are used for the calibration coefficient.

NOTE: They will not be within the rated accuracy of the module.

Request for Hold Outputs (Q) – Channel request bits that instruct and output to hold

its output level when EN transitions from 1 to 0 to 1. When EN is 0, outputs go to a save state dictated by S1/S0. When EN returns to 1, the outputs will hold their level until the output data equals the output level. P0...P3 indicates channels holding. Output read back data shows what level is being held. Q0 = bit 08 (10) = channel 0; Q1 = bit 08 (10) = channel 1, and so on.

interrupts ensuring exchange of critical data when channels are configured for their fastest update times. RTSI and "no low pass filter" must be 0 in order for the module to recognize this feature. This groups data update rates for all channels to the slowest configuration setting of any of the channels. In addition, channel update rates for all channels with a 7.5 ms update rate are reduced to 5.0 ms. When reset (0), real time sampling and filter features are enabled.

without using the IC bit.

Not used.

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1149

1794-IF2XOF2I Series B – Isolated Analog Combo Module Image Table Mapping

1794-IF2XOF2I – Isolated Analog Combo Module Read Words

Word/Dec. Bit 15141312111009080706050403020100

Word/Octal Bit 17161514131211100706050403020100

Read Word 0 Input Data Channel 0

Read Word 1 Input Data Channel 1

Read Word 2 Read Back Channel 0

Read Word 3 Read Back Channel 1

Read Word 4 0 Real Time Sample

Read Word 5 PUFPCF0Reserved 00000BDDN0

Read Word 6 0000P1P00000V1V0W1W0U1U0

Write Word 0 ENS1S00000000000000

Write Word 1 Output Data – Channel 0

Write Word 2 Output Data – Channel 1

Write Word 3 00000000Input Channel 1 Filter Input Channel 0 Filter

Write Word 4 Output Channel 1

Configuration

Write Word 5 0 Real Time Sample Programmed Interval

Output Channel 0 Configuration

Input Channel 1 Configuration

Input Channel 0 Configuration

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1794-IF2XOF2I – Isolated Analog Combo Module Read Words

Word/Dec. Bit 15141312111009080706050403020100

Word/Octal Bit 17161514131211100706050403020100

Write Word 6 IC 1 TR IT Q1 Q0 0 0 RV QK CK GO Channel Number

Write Word 7 Not used

Where: PU = Power up unconfigured state

FP = Field power off CF = Configuration mode BD = Calibration bad DN = Calibration accepted P0 and P1 = Output holding in response to Q0...Q1 W0 and W3 =Wire off current loop status for channels 0 and 1 respectively. (Not used on voltage outputs). U0 and U1 = Underrange for input channels 0 and 1 respectively V0 and V1 = Overrange for input channels 0 and 1 respectively EN = Enable outputs; 0 = output follows S1/S0, 1 = output enabled IC = Initiate configuration bit TR = Transparent bit IT = Interrupt toggle bit Q0 and Q1 = Hold RV = Revert to defaults bit QK = Quick calibration CK = Calibration clock GO = Gain offset select

Configure Your Input Channels

Input Channel Configuration

03020100Set these bits for Channel 0

07060504Set these bits for Channel 1

Bit Settings Input

Values

Data Format % Underrange/

% Overrange

Input Range Hexadec. Dec.

0000Channel not configured

00014...20 mA signed 2’s complement 4% Under; 4% Over <0000...7878> <0000...30840> 7.5 ms 5.0 ms

0010± 10V signed 2’s complement 2% Under; 2% Over <831F...7CE1> <-31969...31969>2.5 ms 2.5 ms

0011± 5V signed 2’s complement 4% Under; 4% Over <8618...79E8> <-31208...31208> 2.5 ms 2.5 ms

01000...20 mA signed 2’s complement % 0% Under; 4% Over <0...2710> <0...10000> 7.5 ms 5.0 ms

01014...20 mA signed 2’s complement % 4% Under, 4% Over <0...2710> <0...10000> 7.5 ms 5.0 ms

01100...10V signed 2’s complement % 0% Under; 2% Over <0...2710> <0...10000> 5.0 ms 5.0 ms

0111± 10V singed 2’s complement % 2% Under; 2% Over <-D8F0...2710><-10000...10000>5.0 ms 5.0 ms

10000...20 mA binary 0% Under; 4% Over <0000...F3CF> <0000...62415> 2.5 ms 2.5 ms

10014...20 mA

(1)

binary 4% Under; 4% Over <0000...F0F1> <0000...61681> 7.5 ms 5.0 ms

10100...10V binary 0% Under; 2% Over <0000...F9C2> <0000...63938> 2.5 ms 2.5 ms

10110...5V binary 0% Under; 4% Over <0000...F3CF> <0000...62415> 2.5 ms 2.5 ms

1100± 20 mA offset binary, 8000H = 0 mA4% Under; 4% Over <0618...F9E8> <1560...63976> 2.5 ms 2.5 ms

11014...20 mA offset binary, 8000H = 4 mA 4% Under; 4% Over <8000...F878> <32768...63608> 7.5 ms 5.0 ms

1110± 10V offset binary, 8000H = 0V 2% Under, 2% Over <031F...FCE1> <799...64737> 2.5 ms 2.5 ms

± 5V offset binary, 8000H = 0V 4% Under, 4% Over <0618...F9E8> <1560...63976> 2.5 ms 2.5 ms

(1)

Underrange for 4...20 mA occurs in the blind area below 0 (3.2 mA).

(2)

Module Update Rate (RTSI = 0) (RTSI = 0), IT = 1

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Setting the Input Filters

Bits Channel

03 02 01 00 Input Channel 0

07 06 05 04 Input Channel 1

A/D Conversion Rate Low Pass Filter

00001200 Hz No low pass

00011200 Hz 100 ms low pass

00101200 Hz 500 ms low pass

00111200 Hz 1000 ms low pass

0100600 Hz No low pass

0101600 Hz 100 ms low pass

0110600 Hz 500 ms low pass

0111600 Hz 1000 ms low pass

1000300 Hz No low pass

1010300 Hz 100 ms low pass

1011300 Hz 500 ms low pass

1100300 Hz 1000 ms low pass

1101150 Hz No low pass

1110150 Hz 100 ms low pass

1111150 Hz 500 ms low pass

150 Hz 1000 ms low pass

(2)

<and> indicates the overrun beyond actual range (about 5%).

Configure Your Output Channels

Configuration Bits MSD LSD

00014...20 mA 2’s complement <0000...7878> <0000...30840> 5.0 ms

0010± 10V 2’s complement <8618...79E8> <-31208...31208> 2.5 ms

0011± 5V 2’s complement <8618...79E8> <-31208...31208> 2.5 ms

01000...20 mA 2’s complement % <0...10000> <0...10000> 5.0 ms

01014...20 mA 2’s complement % <0...10000> <0...10000> 5.0 ms

01100...10V 2’s complement % <0...10000> <0...10000> 5.0 ms

0111± 10V 2’s complement <-10000...10000> <-10000...10000> 5.0 ms

10000...20 mA binary <0000...F3CF> <0000...62415> 2.5 ms

10014...20 mA binary <0000...F0F1> <0000...61681> 5.0 ms

10100...10V binary <0000...F3CF> <0000...62415> 2.5 ms

10110...5V binary <0000...F3CF> <0000...62415> 2.5 ms

11004...20 mA offset binary <8000...F9E8> <32768...63976> 2.5 ms

Nominal Range

Data Type Output Values

Hexadecimal Decimal

Update Rate

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56 Communicate With Your Module

Configure Your Output Channels

Configuration Bits MSD LSD

1 1 0 1 ± 20 mA offset binary <8000...F878> <32768...63608> 5.0 ms

1 1 1 0 ± 10V offset binary <0618...F9E8> <1560...63976> 2.5 ms

1 1 1 1 ± 5V offset binary <0618...F9E8> <1560...63976> 2.5 ms

Nominal Range

Data Type Output Values

Hexadecimal Decimal

Update Rate

1794-IF2XOF2I Analog Combo Module Word/Bit Descriptions

Word Decimal Bit

(Octal Bit)

Read Word 0 Bit 00…15

(00…17)

Read Word 1 Bit 00…15

(00…17)

Read Word 2 Bits 00…15

(00…17)

Read Word 3 Bit 00…15

(00…17)

Read Word 4 Bit 00…15

(00…17)

Read Word 5 Bit 00 Reserved.

Bit 01 Calibration Done bit (DN) – This bit is set to 1 after a calibration cycle is completed.

Bit 02 Calibration Bad bit (BD) – This bit is set to 1 if the channel calibration coefficients cannot be

Bits 03…07 Set to 0.

Bits 08…11 (10…12)

Bit 12 (14) Set to 0.

Bit 13 (15) Configuration mode bit (CF) – This bit is set (1) when the calibration mode is selected (bit 15,

Bit 14 (16) Field Power Off bit (FP) – This bit is set (1) when the 24V field power fails. When this bit is

Bit 15 (17) Power Up (unconfigured state) bit (PU) – This bit is set (1) when the configuration word is

Definition

Input Channel 0 input data – 16-bit unipolar; 15-bit plus sign bipolar.

Input Channel 1 input data – 16-bit unipolar; 15-bit plus sign bipolar.

Read Back Output Channel 0 – During normal operation, it is a copy of the output of channel

0. During an EN transition, it is the condition of the output as determined by S1 and S0.

Read Back Output Channel 0 – During normal operation, it is a copy of the output of channel

0. During an EN transition, it is the condition of the output as determined by S1 and S0.

Real Time Sample – The fixed time period you set telling the module when to provide data to the processor.

saved or be read properly.

Reserved.

word 5 in the block transfer write set to 1).

set (1), the module status indicator flashes.

all zeroes (0) due to a reset (adapter power cycle or module insertion) or a cleared configuration word (all 0).

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1794-IF2XOF2I Analog Combo Module Word/Bit Descriptions

Communicate With Your Module 57

Word Decimal Bit

(Octal Bit)

Read Word 6 Bits 00…01 Underrange bits (U) – These bits are set (1) when the input channel is below a preset limit as

Bits 02…03 Wire-Off status bits (W) – These bits, when set (1), indicate the corresponding current output

Bits 04…05 Overrange bits – These bits are set (1) when the input channel is above a preset limit as

Bits 06…09 (06…11)

Bits 10…11 (12…13)

Bits 12…15 (14…17)

Write Word 0 Bits 00…12

(00…14)

Bit 13…14 (15…16)

Bit 15 (17) Output enable bit (EN) – When set (1), the outputs are enabled. This bit must be set in order

Write Word 1 Bits 00…15

(00…17)

Write Word 2 Bits 00…15

(00…17)

Write Word 3 Input Channels 0 and 1 Filter Selections. (See Setting the Input Filters on page 55).

Bits 00…01 Channel 0 Filter Setting

Bits 04…07 Channel 1 Filter Setting

Bits 8…15 (11…17)

Write Word 4 Channel Configuration

Bits 00…03 Input Channel 0 Configuration – See Configuring Your Input Channel

Bits 04…07 Input Channel 1 Configuration – See Configuring Your Input Channel on page 45

Bits 08…11 (10…13)

Bits 12…15 (14…17)

Write Word 5 Bits 00…14

(00…16)

Bit 15 (17) Set to 0.

Definition

defined by the configuration selected. U0 (bit 00) corresponds to input channel 0 and U1 (bit 01) corresponds to input channel 1.

channel is open. W0 (bit 02) corresponds to channel 0, W1 (bit 03) corresponds to channel 1.

defined by the configuration selected. Bit 04 corresponds to input channel 0 and bit 05 corresponds to input channel 1.

Not used. Set to 0.

Hold output bits (P) – These bits are set (1) in response to Q0 or Q1 and a transition of the EN bit. When P0 or P1 is set (1), they indicate that the output is holding at the level in the readback data for the respective channel. These bits return to 0 when the output data matches the readback output data.

Not used. Set to 0.

Not used.

Safe State Configure bits (S1/S0) – When EN is 0, these bits designate the source of the safe state data. Bit 13 = 0, bit 14 = 1 – reset outputs to 0V/0 mA Bit 13 = 1, bit 14 = 1 – hold the output at its current level

for the real time data to appear at the outputs. If this bit is not set (0), the outputs will be determined by S1/S0.

Output Channel 0 data. See Configure Your Output Channels

Output Channel 1 data. See Configure Your Output Channels

Set to 0.

Output Channel 0 Configuration – See Configuring Your Input Channel on page 45.

Output Channel 1 Configuration – See Configuring Your Input Channel

Real Time Sample Interval – Programs the interval of the real time sample. Can be varied

from 0...30 s (30000 decimal). Resolution is in ms with granularity in 5 ms steps.

on page 55.

on page 45

on page 45.

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1794-IF2XOF2I Analog Combo Module Word/Bit Descriptions

Word Decimal Bit

(Octal Bit)

Write Word 6 Bit 00…03 Channel Calibration Selection bit – When this bit is set (1), the channel can be claibrated

Bit 04 Gain/Offset Calibration bit (GO) – When this bit is set (1), a reset (0), set (1), reset (0) pattern

Bit 05 Calibration clock bit (CK) – When this bit is set to 1 (calibration mode), the calibration

Bit 06 Quick Calibration bit (QK) – Normally reset (0). When this bit is set (1) during a calibration

Bit 07 Revert to defaults bit (RV) – Normally reset (0). When set (1) during a calibration procedure,

Bits 08…09 (10…11)

Bits 10…11 (12…13)

Bit 12 (14) Interleave Interrupts (IT) – This bit, when set (1), permits interleaving of module interrupts

Bit 13 (15) Transparent bit (TR) – This bit, when set (1), permits configuration to be changed without

Bit 14 (16) Set to 1.

Bit 15 (17) Initiate Configuration bit (IC) – When set (1), instructs the module to enter configuration

Write Word 7 Bits 00…15

(00…17)

Definition

using the initiate calibration bit (IC). Bit 00 corresponds to input channel 0, bit 01 corresponds to input channel 1, bit 02 corresponds to output channel 0, bit 03 corresponds to output channel 1.

of the calibration clock bit (CK) causes a gain calibration to occur. When this bit is set to 0, a reset (0), set (1), reset (0) pattern of the calibration clock bit (CK) causes and offset calibration to occur.

coefficient for the selected channels is accepted. When this bit is reset (0), the accepted calibration coefficients are stored in the selected channels, applied, and the calibration mode exited. Monitor status bits DN and BD for succesful calibration.

sequence, the calibration coefficient is stored to all related configurations for the selected channels. NOTE: This method of calibration quickly calibrates the selected channels, you will not be within the rated accuracy of the module.

default values for selected channels are used for the calibration coefficient.

Not used. Set to 0.

Request for hold outputs (Q) – Channel request bits that instruct an output to hold its output level when EN transitions from 0 to 1 to 0. When EN is 0, outputs go to a safe state dictated by S1/S0. When EN returns to 1, the outputs will hold their level until the output data equals the output level. P0...P3 indicates channels holding. Output read back data shows what level is being held. Q0 = bit 08 (10) = channel 0; Q1 = bit 08 (10) = channel 1, and so on.

ensuring exchange of critical data when channels are configured for their fastest update times. RTSI and "no low pass filter" must be 0 in order for the module to recognize this feature. This groups data update rates for all channels to the slowest configuration setting of any of the channels. In addition, channel update rates for all channels with a 7.5 ms update rate are reduced to 5.0 ms. When reset (0), real time sampling and filter features are enabled.

using the IC bit.

mode. Present confirugation data prior to or coincident with IC being set. Once IC returns to 0, additional configuration information is ignored.

Not used.

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1794-ID2 – Incremental Encoder Module Image Table Mapping

1794-ID2 Pulse Counter Module Word/Bit Definitions for Block Transfer Read Words

Word Bit Definition

Read Word 0 Bit 00 Ch 0 Input A – (pulse transmitter 0) – This bit, when set, indicates a signal at A.

Bit 01 Ch 0 Input B – (pulse transmitter 0) – This bit, when set, indicates a signal at B.

Bit 02 Ch 0 Input Z – (pulse transmitter 0) – This bit, when set, indicates a signal at Z.

Bit 03 Ch 0 Input G – (pulse transmitter 0) – This bit, when set, indicates a signal at G.

Bit 04 Ch 1 Input A – (pulse transmitter 1) – This bit, when set, indicates a signal at A.

Bit 05 Ch 1 Input B – (pulse transmitter 1) – This bit, when set, indicates a signal at B.

Bit 06 Ch 1 Input Z – (pulse transmitter 1) – This bit, when set, indicates a signal at Z.

Bit 07 Ch 1 Input G – (pulse transmitter 1) – This bit, when set, indicates a signal at G.

Bit 08 (10) Calibrated 0 – This bit, when set (1), indicates that the counter 0 has been calibrated. This bit

Bit 09 (11) Calibrated 1 – This bit, when set (1), indicates that the counter 1 has been calibrated. This bit

Bit 10 (12) Ch 0 Counter Stored – This bit, when set (1), indicates a counter value is saved in store 0. This

is reset by CalReset.

bit is reset by StoreReset.

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1794-ID2 Pulse Counter Module Word/Bit Definitions for Block Transfer Read Words

Word Bit Definition

Read Word 0 Bit 11 (13) Ch 1 Counter Stored – This bit, when set (1), indicates a counter value is saved in store 1. This

Read Word 1 Bits 00…15

Read Word 2 Bits 00…15

Read Word 3 Bits 00…15

Read Word 4 Bits 00…15

Read Word 5 Bits 00…15

Read Word 7 Bits 00…15

Read Word 8 Bits 00…15

bit is reset by StoreReset.

Bit 12 (14) Ch 0 Preset Reached (PR0) – When this bit is set (1), in all configuration modes, the counter 0

value equals the preset 0 value, either in a positive or negative direction. This bit is reset by PresetReset0 and can only be set again after at least 1 more pulse.

Bit 13 (15) Ch 1 Preset Reached (PR1) – When this bit is set (1), in all configuration modes, the counter 1

value equals the preset 0 value, either in a positive or negative direction. This bit is reset by PresetReset1 and can only be set again after at least 1 more pulse.

Bit 14 (16) Ch 0 Counter Inc/Dec – 0 = last pulse decreased counter value, 1 = last pulse increased

counter value

Bit 15 (17) Ch 1 Counter In/Dec – 0 = last pulse decreased counter value, 1 = last pulse increased counter

value

Ch 0 Stored Counter – Saved counter value on channel 0.

(00…17)

Ch 1 Stored Counter – Saved counter value on channel 1.

(00…17)

Ch 0 Counter – Current value in counter 0.

(00…17)

Ch 1 Counter – Current value in counter 1.

(00…17)

Ch 0 Counter Readback – Counter word readback – last value written to write word 1.

(00…17)

Ch 1 Counter Readback – Counter word readback – last value written to write word 2.

(00…17)

Firmware Revision – identification of latest software version code.

(00…17)

1794-ID2 Pulse Counter Module Word/Bit Definitions for Block Transfer Read Words

Word Bit Definition

Write Word 0 0…15

(0…17)

Bits 00…02 02 01 00 Ch 0 Mode Selection bits

Bit 03 Ch 0 Counter Preset bit – A positive edge on this bit moves the value in Preset X to Counter X, independent of

Ch 0 Control – Control word for setting the function of Ch 0 Counter.

0 0 0 Counting on positive (rising) edge of input signal A (Up/dwn counting determined by B).

0 0 1 Quadrature encoder X1.

0 1 0 Quadrature encoder X2.

0 1 1 Quadrature encoder X4.

1 0 0 Counting up on positive edge of input signal A, and down on positive edge of input signal B.

1 0 1 No count function.

1 1 0 No count function.

1 1 1 No count function.

Preset Enable. NOTE: To use Preset as Reset, use a count value of 0000 in the Preset value word.

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1794-ID2 Pulse Counter Module Word/Bit Definitions for Block Transfer Read Words

Word Bit Definition

Write Word 1 Bit 04 Ch 0 Z Preset Enable bit – When this bit is set (1), a positive edge on Z preloads Counter X = Preset X, independent of

Bit 05 Ch 0 Count Enable bit – When this is set (1), the incremental encoder is enabled.

Bits 06…08 (06…10)

Bits 09…10 (11…12)

Bits 11…12 (13…14)

Bit 13 (15) Ch 0 Rollover bit – When set (1), the counter counts up to the prset and then restarts at 0. If this bit is reset (0) (not

Bit 14 (16) Ch 0 Store Reset bit – A positive edge on this bit resets Stored X in Signals.

Bit 15 (17) Ch 0 Preset Reset bit – A positive edge on this bit resets Preset Detected in Signals.

Write Word 2 Ch 1 Control – Control word for setting the fuction of Ch 1 Counter.

Bits 00…02 Bit 02 01 00 Ch 1 Mode Selection bits

Cal Enable.

NOTE: If Z is configured to do Store and Preset (Reset), the Store will occur first.

Ch 0 Calibration Control bits – bits 06, 07 and 08.

06 Cal Enable bit – When set (1), the counter can be calibrated.

07 Cal Direction bit – When set (1), calibration is performed in a negative direction; when reset (0), calibration is

performed in a positive direction.

08 Ch 0 Cal Reset bit – Calibration is acknowledged and a new calibration is enabled on a positive edge on this bit.

10 09 Gate Control bits

0 0 No gate function on input G.

0 1 Counting only if G is high (active).

1 0 Counting only if G is low (inactive).

1 1 The counter can be calibrated when G is high (active).

12 11 Store Control bits

Save the counter value on positive edge of Z (if Stored X = 0).

Save the counter value on positive edge of G (if Stored X = 0).

Save the counter value on negative edge of G (if Stored X = 0).

Save the counter value on positive and negative edges of G (if Stored X = 0).

rollover), the rollover preset value = FFFF (hex = 65536 (decimal).

0 0 0 Counting on positive (rising) edge of input signal A (up/dwn counting determined by B).

0 0 1 Quadrature encoder X1.

0 1 0 Quadrature encoder X2.

0 1 1 Quadrature encoder X4.

1 0 0 Counting up on the positive edge of input signal A, and down on positive edge of input signal B.

1 0 1 No count function.

1 1 0 No count function.

1 1 1 No count function.

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1794-ID2 Pulse Counter Module Word/Bit Definitions for Block Transfer Read Words

Word Bit Definition

Write Word 2 Bit 03 Counter Preset bit – A positive edge on this bit moves the value in Preset X to Counter X, independent of Preset Enable.

Bit 04 Preset Enable bit – When set (1), a positive edge on Z preloads Counter X = Preset X, independent of Cal Enable.

Bit 05 Count Enable bit – When set (1), the incremental encoder is counting.

Bits 06…08 (06…10)

Bits 09…10 (11…12)

Bits 11…12 (13…14)

Bit 13 (15) Rollover bit – When set (1), the counter counts up to the preset and then restarts at 0. If this bit is reset (0) (not rollover),

Bit 14 (16) Ch 1 Preset Reset bit – A positive edge on this bit resets Stored X in Signals.

Bit 15 (17) Ch 1 Store Reset bit - A positive ege on this bit resets Preset Reached in Signals.

Write Word 3 Bits 00…15

Write Word 4 Bits 00…15

Write Word 5 Filter Selection

Write Words 6…7

(00…17)

Bit 00 Ch 0 Filter Enable – When set (1), and a counter 0 is in mode 000 (pulse counting), signal A0 is filtered by a digital low

Bit 01 Ch 1 Filter Enable – When set (1), and a counter 1 is in mode 000 (pulse counting), signal A1 is filtered by a digial low

Bit 02…07 Unused.

Bits 08…09 (10…11)09(11)08(10)

Bits 00…15 (00…17)

Calibration Control bits – bits 06, 07 and 08.

06 Enable bit – When set (1), the counter can be calibrated.

07 Direction bit – When set (1), calibration is performed in a negative direction; when reset (0), calibration is

performed in a positive direction.

08 Reset bit – Calibration is acknowledged and a new calibration is enabled on a positive edge on this bit.

10 09 Gate Control bits

0 0 No gate function on input G.

0 1 Counting only if G is high (active).

1 0 Counting only if G is low (inactive).

1 1 Calibration if G is high (active).

12 11 Latch Control bits

0 0 Save the counter value on the positive edge of Z (if Stored X = 0).

0 1 Save the counter value on the positive edge of G (if Stored X = 0).

1 0 Save the counter value on the negative edge of G (if Stored X = 0).

1 1 Save the counter value on the positive and negative edges of G (if Stored X = 0).

the rollover preset value = FFFF hex = 65535 (decimal).

Ch 0 Preset – Value to load or compare with counter 0.

Ch 1 Preset – Value to load or compare with counter 1.

pass filter with selectable filter constant.

Filter bits – This constand is common to both counters.

0 0 73.5 kHz or minimum 0.007 ms pulsewidth.

0 1 37.8 kHz or minimum 0.013 ms pulsewidth.

1 0 12.8 kHz or minimum 0.04 ms pulsewidth.

1 1 1.2 kHz or minimum 0.4 ms pulsewidth.

Not used – set to 0.

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1151

1794-IP4 – Pulse Counter Module Image Table Mapping

1794-IP4 Pulse Counter Module Block Transfer Word Assignments

(Octal Bit ⇒ ) 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Dec. Bit ⇒ 15 14 13 12 11 10 03 08 07 06 05 04 03 02 01 00

Word

⇓ Read

1 Ch 0 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 0.

2 Ch 0 Data 1 – pulse counter or high word of 32-bit period measurement for channel 0.

3 Ch 1 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 1.

4 Ch 1 Data 1 – pulse counter or high word of 32-bit period measurement for channel 1.

5 Ch 2 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 2.

6 Ch 2 Data 1 – pulse counter or high word of 32-bit period measurement for channel 2.

7 Ch 3 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 3.

8 Ch 3 Data 1 – pulse counter or high word of 32-bit period measurement for channel 3.

9Status.

Reserved. RD3 RD2 RD1 RD0 Ch 3

10 Revision read – software version code.

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Ready

Ch 2 Ready

Ch 1 Ready

Ch 0 Ready

64 Communicate With Your Module

1794-IP4 Pulse Counter Module Block Transfer Word Assignments

(Octal Bit ⇒ ) 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

Dec. Bit

Word

1 Control Word 0 – selects the measure function.

2 Control Word 1 – sets the clock frequency and period multiple.

3 Control Word 2 – sets the start of a new measurement.

4…5 Reserved.

Where: M = Positive edge measurement ready for the respective channel.

⇒ 15 14 13 12 11 10 03 08 07 06 05 04 03 02 01 00

⇓ Write

RD = Reset Done for respective channel.

1794-IP4 Pulse Counter Module Word/Bit Definitions

Word Bit Definition

Read Word 0 Bit 00…15

Read Word 1 Bit 00…15

Read Word 2 Bit 00…15

Read Word 3 Bit 00…15

Read Word 4 Bit 00…15

Read Word 5 Bit 00…15

Read Word 6 Bit 00…15

Read Word 7 Bit 00…15

Read Word 8 Bit Status

Read Word 9

(00…17)

Bit 00 Ch 0 Ready – measurement ready.

Bit 01 Ch 1 Ready – measurement ready.

Bit 02 Ch 2 Ready – measurement ready.

Bit 03 Ch 3 Ready – measurement ready.

Bit 04 Reset Done, Ch 0 – positive edge on this bit indicates counter 01 reset done.

Bit 05 Reset Done, Ch 1 – positive edge on this bit indicates counter 11 reset done.

Bit 06 Reset Done, Ch 2 – positive edge on this bit indicates counter 21 reset done.

Bit 07 Reset Done, Ch 3 – positive edge on this bit indicates counter 31 reset done.

Bit 08…15 Reserved for factory use.

Bits 00…15 (00…17)

Store Counter 00 – 16-bit period measurement or low word of 32-bit period measurement for channel 0.

Ch 0 Data 0 – pulse counter or high word of 32-bit period measurement for channel 0.

Ch 0 Data 1 – 16-bit period measurement or low word of 32-bit period measurement for channel 1.

Ch 1 Data 1 – pulse counter or high word of 32-bit period measurement for channel 1.

Ch 2 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 2.

Ch 2 Data 1 – pulse counter or high word of 32-bit period measurement for channel 2.

Ch 3 Data 0 – 16-bit period measurement or low word of 32-bit period measurement for channel 3.

Ch 3 Data 1 – pulse counter or high word of 32-bit period measurement for channel 3.

Software revision – Version code of software installed.

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1794-IP4 Pulse Counter Module Word/Bit Definitions

Word Bit Definition

Write Word 0 Bit Control Word 0 – Control word for setting the function of counter 0.

Bit 00 Pulse counting and period time measurement selection for Channel 0 –

Bit 01 Pulse counting and period time measurement selection for Channel 1 –

Bit 02 Pulse counting and period time measurement selection for Channel 2 –

Bit 03 Pulse counting and period time measurement selection for Channel 3 –

Bits 04…15 (04…17)

Write Word 1 Bit 00 Clock frequency for period time measurement - Channel 0 –

Bits 01…03 03 02 01 Number of periods for measurement - Channel 0.

Bit 04 Clock frequency for period time measurement - Channel 1 – see Bit 00 above.

Bits 05…07 Selection of Number of period for measurement - Channel 1 – see Bits 01…03 above.

Bits 08(10) Clock frequency for period time measurement - Channel 2 – see Bit 00 above.

Bits 09…11 (11…13)

Bit 12(14) Clock frequency for period time measurement - Channel 1 – see Bit 00 above.

Bits 13…15 (15…17)

0 = pulse counting and period measurement selected. 1 = period time measurement selected.

Reserved.

0 = period time measurement with 10 MHz internal clock selected. 1 = period time measurement with 1 MHz internal clock selected.

0 0 0 1 period.

0 0 1 2 periods.

0 1 0 4 periods.

0 1 1 8 periods.

1 0 0 16 periods.

1 0 1 32 periods.

1 1 0 64 periods.

1 1 1 128 periods.

Selection of Number of period for measurement - Channel 2 – see Bits 01…03 above.

Selection of Number of periods for measurement - Channel 1 – see Bits 01…03 above.

Communicate With Your Module 65

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66 Communicate With Your Module

Logic Status Channel 1

Annalog Feedback Channel 1

Logic Command Channel 1

Annalog Reference Channel 1

Logic Command Channel 2

Annalog Reference Channel 2

Not Used

Logic Status Channel 2

Annalog Feedback Channel 2

Connection Status Channel 2 Connection Status Channel 1

Connection Enable Channel 2 Connection Enable Channel 1

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Write Word 2 Bit 00 Start new measurment bit - Channel 0 – when set, start new measurement on positive edge.

Bit 01 Start new measurment bit - Channel 1 – when set, start new measurement on positive edge.

Bit 02 Start new measurment bit - Channel 2 – when set, start new measurement on positive edge.

Bit 03 Start new measurment bit - Channel 3 – when set, start new measurement on positive edge.

Bit 04 Reset Counter, Channel 0 – positive edge on this bit resets counter 01.

Bit 05 Reset Counter, Channel 1 – positive edge on this bit resets counter 11.

Bit 06 Reset Counter, Channel 2 – positive edge on this bit resets counter 21.

Bit 07 Reset Counter, Channel 3 – positive edge on this bit resets counter 31.

Bits 08…15

Reserved.

(10…17)

Write Words 3 and 4

Bit 00…15 (00…17)

Reserved.

1203-FM1 – SCANport Module Image Table Mapping

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1153

1154

Connection Status Word Definition

3210765411 10 9 815 14 13 12

Connection Status Word Definitions

Descripton

V1 SCANport channel 1 valid data bit. When high (1), the Logic Status and

ID1 SCANport channel 1 connected peripheral port ID number. This three

V2 SCANport channel 2 valid data bit. When high (1), the Logic Status and

ID2 SCANport channel 2 connected peripheral port ID number. This three

Analog Feedback values are valid and can be used. When low (0), the values should not be used.

bit field contains the port number that channel 1 is connected to on the SCANport device. It should contain a value between 1 and 7. If this field is 7, then the channel is not connected to the SCANport device or the SCANport device may not be powered.

Analog Feedback values are valid and can be used. When low (0), the values should not be used.

bit field contains the port number that channel 2 is connected to on the SCANport device. It should contain a value between 1 and 7. If this field is 7, then the channel is not connected to the SCANport device, or the SCANport device may not be powered.

Logic Status/Analog Feedback Definition

The Logic State and Analog Feeback values are defined within the product manuals of the connected SCANport device(s).

Connection Enable Word Definition

14 13 12

Connection Enabled Word Definitions

Descripton

E1 SCANport channel 1 enable bit. When set (1), the module attempts to

connect to the SCANport device. When reset (0), the module stops communicating with the connected SCANport device. This usually causes the device to fault.

E2 SCANport channel 2 enable bit. When set (1), the module attempts to

connect to the SCANport device. When reset (0), the module stops communicating with the connected SCANport device. This usually causes the device to fault.

32 10765411 10 9 815

E2 E1

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68 Communicate With Your Module

Logic Command/Analog Reference Definition

The Logic Command and Analog reference values are defined within the product manuals of the connected SCANport device(s).

Defaults

Each I/O module has default values associated with it. At default, each module generates inputs/status and expects outputs/configuration.

FLEX I/O Module Defaults

Module Defaults for: Adapter Defaults Optimal Sizes

Catalog Number Description Input

Default

1794-IB8 8-pt 24V DC Sink Input 1 1 1 0

1794-OB8 8-pt 24V DC Source Output 1 1 0 1

1794-IB16 16-pt 24V DC Sink Input 1 1 1 0

1794-OB16 16-pt 24V DC Source Output 1 1 0 1

1794-IV16 16-pt 24V DC Source Input 1 1 1 0

1794-OV16 16-pt 24V Sink Output 1 1 0 1

1794-OB8EP Elec. Prot. Output Module 1 1 0 1

1794-IB10XOB6 10 In/6 Out Combo Module 1 1 1 1

1794-IA8 8-pt 120V AC Input 1 1 1 0

1794-OA8 8-pt 120V AC Output 1 1 0 1

1794-IB8S 8-pt 24V DC Sensor Input 1 1 1 0

1794-OW8 8-pt Relay Output 1 1 0 1

1794-IE8 8-pt Analog Input 9 6 8 0

1794-OE4 4-pt Analog Output 1 14 0 4

1794-IE4XOE2 4 in/2 out Analog Combo 5 10 4 2

1794-IR8 8-pt RTD Analog Input 11 4 10 0

1794-IT8 8-pt Thermocouple Input 11 4 10 0

1794-IRT8 TC/mV/TRD Module 11 4 1 0

1794-IF4I 4 Isolated Input Module 7 5 1 0

1794-OF4I 4 Isolated Output Module 6 9 0 1

1794-IF2XOF2I Isolated Combo Module 7 7 1 1

1794-ID2 Incremental Encoder Module 8 7 1 0

1794-IP4 Pulse Counter Module 10 3 1 0

1203-FM1 SCANport Module 6 5 4 3

Output Default

Input Default

Output Default

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The default values refect the maximum number of read/write words.

You can change the I/O data size for a module by reducing the number of words mapped into the adapter module, as shown in optimal sizes.

Communicate With Your Module 69

Optimal sizes are the settings that provide optimal data to and from the I/O modules. You need a software configuration tool to change the size. Make sure the FLEX I/O adapter is compatible with the configuration tool you choose.

The optimal setting provide the fastest network time by only mapping read and write words used by the I/O modules. If you reduce your data sizes to only include optimal data, you can only change your configuration data with a software tool. If you need to change configuration information on an optimal basis, your data size must be large enough to include the necessary words.

Chapter Summary

In this chapter you learned how to communicate with your module. Read the next chapter to learn how to connect to the PROFIBUS DP network.

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70 Communicate With Your Module

Notes:

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Chapter

Connect Your Adapter to the PROFIBUS DP Network

Overview

The DP Physical Layer

Read this chapter to install the input and output analog modules.

For Information On Page

The DP Physical Layer

Cabling and Equipment Required for Line A Type

Cabling and Equipment Required for Line B Type

Connect the Adapter to the Network

Terminate the Network

The PROFIBUS network media is a balanced transmission line corresponding to the standard EIA RS-485, terminated at both ends. Both line A and line B types are available, depending on your system requirements.

Specifications and guidelines for DP media:

• linear bus, terminated at both ends

• drop cables (preferably no longer than .30 m), no branches

• shielded twisted pair

• max. line length between 100 and 1200 m (depending on baudrate and cable type)

•number of stations: 32

• DP baudrates: 9.6, 19.2, 93.75, 187.5, 500 Kbit/s, 1.5 Mbit/s, 12 MBd

Use the following table to determine what line type will best meet your needs.

Line Type Characteristics

Characteristic Bus Segments and Drop Cables

Line A Requirements

Impedance 135…165 Ω (3-29 MHz) 100…130 Ω (f> 100 kHz)

Capacity < 30 pF/m < 60 pF/m

Resistance < 110 Ω/km –

Wire Gauge > 0.64 mm > 0.53 mm

Conductor Area > 0.34 mm > 0.22 mm

71 Publication 1794-UM064B-EN-P - May 2014

(1)

(2)

Line B Requirements Total Capacity of

all Drop Cables

72 Connect Your Adapter to the PROFIBUS DP Network

Line Type Characteristics

Characteristic Bus Segments and Drop Cables

Impedance 135…165 Ω (3-29 MHz) 100…130 Ω (f> 100 kHz)

Maximum Length with Baud Rate (bits/s) of:

Where: NA = Not Applicable

(1)

Measurements are the sum of all bus segments and drop cable lengths combined.

(2)

If using a combination of both line types, divide the lengths shown by two.

(1)

Line A Requirements

≤ 19.2 k1200 m 1200 m ≤ 15 nF

93.75 k 1200 m 1200 m ≤ 3 nF

187.5 k 1000 m 600 m ≤ 1 nF

500 k 400 m 200 m ≤ 0.6 nF

1.5 M 200 m NA ≤ 0.2 nF

12 M 100 m

(2)

Line B Requirements Total Capacity of

all Drop Cables

Cabling and Equipment Required for Line A Type

Line A cabling can support baudrates as high as 1.5 Mbits/s.

Cables

You need a shielded twisted pair cable for your cabling (bus segments or drop cables). Any line A cable available on the market can be used to connect your adapter to a PROFIBUS network.

T-junction Connectors

You need t-junction connectors to connect your droplines to bus segments. You can use any t-junctions available on the market.

Termination Blocks

Termination blocks are only needed if the devices on the end of the network do not have built-in terminating resistors. If you need termination blocks, you can use any termination blocks available on the market.

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Connect Your Adapter to the PROFIBUS DP Network 73

IMPORTANT

Bus Connector

Connect your adapter to the PROFIBUS DP network by attaching a bus connector to the female 9 pin D-Sub connector on the front of the module.

For detailed information on the topology and cabling for line A, refer to the PROFIBUS Standard (DIN 19245 Parts 1 & 3, Issue 1994).

Cabling and Equipment Required for Line B Type

Line B cabling can support baudrates as high as 500 kbits/s.

Cables

You need a shielded twisted pair cable for your cabling (bus segments or drop cables). Any shielded twisted pair cables available on the market can be used to connect your adapter to a PROFIBUS network, however, bus segment cables must contain wire for data ground and a cable braid shield. We recommend Sprecher+Schuh cable as shown in the table below.

T-junction Connectors

You need T-junction connectors to connect your droplines to bus segments. You can use any t-junctions available on the market, however, we recommend Sprecher+Schuh connectors as shown in Tab l e

page 74.

Cable Types and Descriptions on

Termination Blocks

Termination blocks are only needed if the devices on the end of the network do not have built-in terminating resistors. If you need to use termination blocks, any termination blocks available on the market can be used, however, we recommend Sprecher+Schuh termination blocks as shown in the table below.

Bus Connector

Connect your adapter to the PROFIBUS DP network by attaching a bus connector to the female 9 pin D-Sub connector on the front of the module.

For detailed information on the topology and cabling for line B, refer to the PROFIBUS Standard (DIN 19245 Parts 1 & 3, Issue 1994).

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74 Connect Your Adapter to the PROFIBUS DP Network

PROFIBUS DP master/scanner controller

PROFIBUS media (trunk cable)

Other DP adapter/slave

1794-APBDPV1 adapter/slave

FLEX I/O system

Other DP adapter/slave

Personal computer with configuration software

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Cable Types and Descriptions

Equipment Type Catalog Number Part Number

Drop cable Sprecher + Schuh PTL-2, PTL-4, PDC-10 87.890.282-10

T-junction connector Sprecher + Schuh PTS-0 87.890.276-01

Bus segment cable Sprecher + Schuh none 299.257.001

Bus segment 1 m Sprecher + Schuh PCB-10 87.890.281-10

Connector Sprecher + Schuh none 87.890.283-01

Termination Block Sprecher + Schuh PCE-0 87.890.284-01

Connect the Adapter to the Network

For line A or B connections,

• use bus segments with t-junctions and termination blocks to form the

PROFIBUS media (trunk cable).

• Use termination blocks to terminate the line at each end of the trunk cable.

• Use drop cables to connect devices to the network.

The maximum number of stations on the same network is 32.

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Connect Wiring to the Adapter

1. Connect the PROFIBUS drop cable to the 9-pin D-shell connector according to the pin assignments in Ta b l e

page 75.

ATTENTION: If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

D-Shell Pin Assignment on

Connect Your Adapter to the PROFIBUS DP Network 75

44558

24V

COM

PROFIBUS connector

44559

D-Shell Pin Assignment

PIN RS-485 Reference Signal Description

1 Shield Shield, RC to earth ground

2 RP Not used

3 B/B’ RXD/TXD-P Receive/transmit data - P

4 CTNR-P Not used

5 C/C’ DGND Data ground

6 VP Voltage plus (+5V)

7 PR Not used

8 A/A’ RXD/TXD-N Receive/transmit data - N

9 CTNR-N Not used

Metal shell Earth ground

2. Connect the cable shield to pin 1. The shield is connected to earth ground.

3. Connect the data signal pins on both ends (signal + pin 3 and signal - pin 8).

DROP CABLE

RCV/ Xmit data +

RCV/ Xmit data -

Earth ground

PROFIBUS

ADAPTER

Shield

Signal + Pin #3

Signal - Pin #8

Pin #1

Pin #5

Data ground

Pins #5 and #6 can be used to supply an external PROFIBUS terminator.

+5V Pin #6

4. Insert the wired connector into the mating connector on the PROFIBUS adapter as shown.

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76 Connect Your Adapter to the PROFIBUS DP Network

PROFIBUS DP ADAPTER

. .

+ 5V 6

390 Ω (2%, 1/4 W)

CABLE

Signal +

Signal -

Data ground

220 Ω (2%, 1/4 W)

1157

5. Connect +V DC power to the left side of the lower connector, terminal E.

ATTENTION: Total power connection wire length must be less than 10 m (32.8 ft).

6. Connect - V common to the left side of the upper connector, terminal D.

7. Connections G and F are used to pass +V DC power (G) and -V common

(F) to the next module in the series (if required).

ATTENTION: When connecting wiring, torque terminal screws D, E, F, and G to 0.8 Nm (7 lb-in).

ATTENTION: Do not wire more than two conductors on any single terminal.

Terminate the Network

You must use termination blocks only if your devices on the end of the network do not have built-in terminating resistors. Terminate the PROFIBUS media (trunk cable) at both ends of the network. If you are not using a connector with built-in resistors, terminate the cable at the adapter connector as shown.

Terminate at the Adapter Using Line A

Since Line A has a higher line impedance, you must use the following termination resistors:

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Connect Your Adapter to the PROFIBUS DP Network 77

1158

Terminate at the Adapter Using Line B

Use the following termination resistors with line B:

Chapter Summary

PROFIBUS DP ADAPTER

+ 5V 6

Signal +

Signal -

Data ground

. .

390 Ω (2%, 1/4 W)

150 Ω (2%, 1/4 W)

390 Ω (2%, 1/4 W)

. .

CABLE

In this chapter you learned how to connect your adapter to the PROFIBUS DP network. Read the next chapter to learn about how to configure your adapter for Master/Slave communication

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78 Connect Your Adapter to the PROFIBUS DP Network

Notes:

Publication 1794-UM064B-EN-P - May 2014

Chapter

Configure the Adapter for Master/Slave Communication

Overview

How Master/Slave Communication Takes Place

Read this chapter to familiarize yourself with input, output and configuration files for analog I/O modules on the PROFIBUS network.

For Information On See Page

How Master/Slave Communication Takes Place 79

Enter User Parameter Data 80

Enter Check Configuration Data 86

A data exchange between the master and slave cannot be performed until check configuration and send parameter data are issued. Each time you power-up the network, the master sends check configuration and send parameter data to the slave (FLEX I/O adapter).

Check configuration data determines or checks the number of input and output words used by each FLEX I/O module.

Send parameter data contains device-specific parameters you define for each FLEX I/O module.

You need a software configuration tool to set the values associated with these parameters. Since the FLEX I/O adapter is compatible with any master, you can use any compatible configuration tool available.

The Device Database File (GSD) is used by your configuration tool to help you set up your system. Your configuration tool automatically reads the GSD file and extracts defaults used in the data exchange. For more information on GSD files, see Appendix B on page 105.

The file is in ASCII format and you can view it with any text editor. To download a printable copy of your GSD file, see Appendix B on page 105.

The user parameter data fields are not defined in the GSD file. Depending on the format you choose, you may have to manually edit these values with your configuration tool.

For more information on how you define and enter these user parameter values, refer to the documentation associated with your master and software configuration tool.

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80 Configure the Adapter for Master/Slave Communication

GroupIdent.

Number

Minimum

Station

Delay

Watchdog Control

Station

Status

User Parameter Data

Watchdog Control

You configure these values using your

software configuration tool.

These values are defined by the PROFIBUS

standard. the defaults are provided by

the GSD file.

Ident.

1161

Enter User Parameter Data

Send parameter data is comprised of a string of octets (1…244) that contain 244 bytes of data:

• octets 1…7 contain data specific to the:

– PROFIBUS Standard – defaults contained in the database (GSD) file

• octets 8…244 are user configurable and contain user parameter data. User

parameter data consists of these formats: – auto configure –condensed –full

FigureSend Parameter Data Table Structure shows the structure of the send parameter data table.

Send Parameter Data Table Structure

User Parameter Data

The first byte of the user parameter data is the flags byte. This byte selects the appropriate format and also specifies adapter behavior. The flags byte is defined in the following table:

Send Parameter Data Flags Byte

Bit Position Name Description

0…1 Format Selection 00 = Auto Configure

2…3 Fault Action 00 = Reset to zero

4 Input Fault Action 0 = Reset inputs to zero

5 Byte Order of Float values

6…7 Reserved Reserved bits must be zero

If the send parameter data is received with no user parameter data, the flags byte is set to zero which selects:

01 = Reserved 10 = Condensed 11 = Full

01 = Hold Last State 10 = Use Safe State 11 = Reserved

1 = Hold Last Value

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Configure the Adapter for Master/Slave Communication 81

1159

• auto configure

• reset outputs to zero on fault

• reset inputs to zero on fault

The reserved bits must be set to zero to prevent undesired firmware update behavior. This is the default behavior of the module as defined in the GSD file.

The descriptions in this chapter use the following example FLEX I/O configuration to explain the information required for each of these functions:

1794-APBDPV1 Adapter Slave

FLEX I/O System

Auto Configure Format

The Auto Configure format allows you to change modules without affecting the User Parameter or Check Configuration data. This format provides no keying from the master on the I/O modules installed in the FLEX I/O system. The installed module at power-up is taken as the key.

If you change a module while it is being controlled by a master, a recoverable fault occurs. To recover from this fault, you must replace the module with an identical module type.

User Parameter Example

User Parameter Message, Auto Configure Format (Length 1 byte)

Name Value Description

Octet 8: 00h Auto Configure Format, Reset to Zero on Fault

The complete I/O module real time data table without the module ID, but with the module configuration, is transferred via cyclic PROFIBUS data in one block.

Condensed Format

The condensed format consists of the flags byte and the module key parameter for each of the eight slots. This parameter dictates which I/O module must be installed. If at any time the actual module ID does not match this module key, the slot will be considered in fault and the following occurs:

• Status Indicator flashes red/off

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82 Configure the Adapter for Master/Slave Communication

• an error bit in the poll response data is set

• a diagnostic bit in the Ext_Diag_Data field returned in the Read DP-Slave

All eight slots must be configured with the module key parameter. The size for this format depends on the module types which are configured (1 word ID for standar modules, 2 word ID for EDT modules). The range can vary from 20 bytes (including the flags byte) to 36 bytes.

The condensed format structure must be repeated for each of the eight slots.

Data Format for Condensed Format

Name Size Description

Module Key WORD Module ID # that must be installed

(1)

Only bits 0…12 are used. Bits 13…15 must be zero except when keying an empty slot where 0FFFFh is used.

The following table shows the identification numbers for commonly used FLEX I/O modules.

Diagnostic Information message response is set

(1)

FLEX I/O Module Catalog Number Module Identification Number

Four-word Modules

1794-IB8 0180h

1794-OB8 0190h

1794-IB16 0281h

1794-OB16 0191h

1794-IV16 0204h

1794-OV16 010Ch

1794-IA8 0285h

1794-OA8 0195h

1794-OA8I 019Ch

1794-OW8 0199h

Sixteen-word Modules

1794-IE8/A 1920h

1794-OE4/A 1121h

1794-IE4XOE2/A 1522h

1794-IE8/B 1924h

1794-OE4/B 1125h

1794-IE4XOE2/B 1526h

1794-IT8 1B00h

1794-IR8 1B01h

1794-IRT8 1B03h

1794-ID2/B 1B03h

(module key)

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Configure the Adapter for Master/Slave Communication 83

FLEX I/O Module Catalog Number Module Identification Number

1794-IP4/B 1A04h

1203-FM1 1600h

1794-IE8H/A 1E3F 2003h

1794-OE8H/A 153F 2002h

1797-IE8H/A 1E3F 2001h

1797-OE8H/A 153F 2002h

1794-VHSC/A 1A3F 2000h

1794-IF8IH/A 1E3F 2005h

1794-OF8I/A 153F 2006h

1794-IE8H/B 1E3F 2103h

1794-OE8H/B 153F 2104h

1797-IE8H/B 1E3F 2102h

1797-OE8H/B 153F 2102h

(module key)

When you use the condensed format, no safe state data can be defined, thus the safe state data is left at the power up default of all zeroes. Setting the Fault Action in the byte to Use Safe State with this format is the equivalent of setting Reset to Zero.

The complete I/O module real time data table without the module ID, but with the module configuration, is transferred via cyclic PROFIBUS data in one block.

User Parameter Example

User Parameter Message, Condensed Format (Length 17 bytes)

Name Value Description

Octet 8: 02h Condensed Format, Reset to Zero on Fault, Reset

Octet 9-10: 0281h 1794-IB16 16-point discrete input module

Octet 11-12: 0191h 1794-OB16 16-point discrete output module

Octet 13-14: 1920h 1794-IE8 8-point analog input module

Octet 15-16: 1121h 1794-OE4 4-point analog output module

Octet 17-18: 0FFFFh Empty

Octet 19-20: 0FFFFh Empty

Octet 21-22: 0FFFFh Empty

Octet 23-24: 0FFFFh Empty

Inputs to Zero

Refer to your configuration tool publications for information on how and where to enter this data.

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84 Configure the Adapter for Master/Slave Communication

Full Format

The full format consists of the flags byte and four parameters for each of the eight slots. The module key parameter is the same for the full format as defined by the condensed format, but adds three more parameters for each slot.

Use the full format for non EDT I/O modules to:

• provide Safe State values for output points

• send FLEX I/O module configurations once (when you send parameters)

• configure data sizes to reduce the size of data required during run mode

Use the full format for EDT I/O modules to:

• provide Safe State values for output points

• send FLEX I/O module configurations once (when you send parameters)

• configure data sizes to reduce the size of data required during run mode

• configure HART variables data to show in the cyclic PROFIBUS data

instead of every poll

area.

You must configure all eight slots. The minimum size is 28 bytes – no slots have FLEX I/O module configuration or safe state data. The maximum size is 237 bytes (the size of the PROFIBUS user parameter area).

Data Format for Full Format of Non EDT I/O Module

User Parameter Byte

5, 6 Module Key WORD Module ID # that must be installed

7 Module Data Sizes

8....x Safe State Data ARRAY Output Safe States. Word array of size Safe

x...y Module Configuration

(1)

Each of the two sizes can range from 0…15 words but when combined cannot exceed 15 words total.

(2)

Only bits 0…12 are used. Bits 13…15 must be zero except when keying an empty slot where 0xFFFF is used.

Name Size Description

(1)

BYTE Bits 0…3 Safe State Size (in words)

ARRAY FLEX I/O Module Configuration. Word array of

Data

Bits 4…7 Module Configuration Data Size (in words)

State Size.

size Configuration Size.

(2)

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Configure the Adapter for Master/Slave Communication 85

Data Format for Full Format of EDT I/O Module

User

Name Size Description Parameter Byte

5...8 Module Key 2 WORDS Module ID # that must be installed

9 Module

Data Sizes

10 Configuratio

BYTE Bits 0…3 Safe State Size (in words)

(1)

Bits 4…7 Module Configuration Data Size (in words)

BYTE Module Configuration Data Size (in words)

(2)

n Data Sizes

11....X Safe State

ARRAY Output Safe States. Word array of size Safe State Size.

Data

X...Y Module

Configuratio

ARRAY FLEX Module Configuration. Word array of size

Configuration Size.

n Data

Y. . .Z H A R T

Variables

Configuratio

ARRAY Y.Byte Bits 0…3 HART loop select of first HART value

Y.Byte Bits 4…7 HART loop select of second HART value Y+1.Byte Bits 0…3 HART loop select of third HART value Y+1.Byte bits 4…7 HART loop select of fourth HART value Y+2.Byte Bits 0…1 Variable select of first HART value Y+2.Byte Bits 2…3 Variable select of seoncd HART value Y+2.Byte Bits 4…5 Variable select of third HART value Y+2.Byte Bits 6…7 Variable select of fourth HART value

(1)

Each of the two sizes can range from 0…15 words but when combined cannot exceed 15 words total.

(2)

Only bits 0…12 are used. Bits 13…15 must be zero except when keying an empty slot where 0xFFFF is used.

There are some possible configurations of FLEX I/O modules that would exceed the user parameter area of 237 bytes. Be aware of the totals of the words and modules you are using.

User Parameter Example

User Parameter Message, Full Format (Length 43 bytes)

Name Value Description

Octet 8: 02h Full Format, Reset to Zero on Fault

Octet 9…10: 0281h Slot 1 Module key 1794-IB16 16-point discrete input module

Octet 11: 10h Slot 1 config size 1 word, safe state size 0 words

Octet 12…13: 0000h 1 config word, input delay times

Octet 14…15: 0191h Slot 2 Module Key 1794-OB16 16-point discrete output module

Octet 16: 01h Slot 2 config size 0 words, safe state size 1 word

Octet 17…18: 0000h 1 safe state data word, safe state value for output points

Octet 19…20: 1920h Slot 3 Module Key 1794-IE8 8-point analog input module

Octet 21: 10h Slot 3 config size 1 word, safe state size 0 words

Octet 22…23: 0000h 1 config word, channel slection

Octet 24…25: 5121 Slot 4 Module Key 1794-OE4 4-point analog output module

Octet 26: 24h Slot 4 config size 2 words, safe state size 4 words

Octet 27…28: 0000h 2 config words – channel selection and

Octet 29…30: 0000h output enabled

Octet 31…32: 0000h 4 safe state data words – safe state size 4 words

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86 Configure the Adapter for Master/Slave Communication

User Parameter Example

User Parameter Message, Full Format (Length 43 bytes)

Name Value Description

Octet 33…34: 0000h output point 2

Octet 35…36: 0000h output point 3

Octet 37…38: 0000h output point 4

Octet 39…40: 0FFFFh Slot 5 empty

Octet 41: 00h Slot 5 all sizes zero

Octet 42…43 0FFFFh Slot 6 empty

Octet 44: 00h Slot 6 all sizes zero

Octet 45…46: 0FFFFh Slot 7 empty

Octet 47: 00h Slot 7 all sizes zero

Octet 48…49: 0FFFFh Slot 8 empty

Octet 50: 00h Slot 8 all sizes zero

Refer to your configuration tool publications for information on how and where to enter this data.

Enter Check Configuration Data

On a PROFIBUS DP network, the I/O data exchanged between the PROFIBUS DP master and a DP slave is encapsulated into logical modules. The total I/O data exchanged between a PROFIBUS DP master and a DP slave device comprises a set of logical modules which is defined in the check configuration data.

Each physical slot of the FLEX I/O system is represented by two logical modules (one input and one output). When the FLEX I/O adapter is powered-up, the check configuration message configures the module format (input and output words) and defines the size of the modules within the device. When the sizes are configured, the I/O data can be optimized to remove unused data from the data stream.

Both input and output sizes can be configured. If a slot is empty, or if either the input or output module is zero length, the specific identifier for an empty module (free place) must be used.

If the end of the identifiers is reached before all slots have been configured, the remaining slots are configured as empty.

The first two modules allocated are for the adapter itself, and must always be a 1 word input module and a 1 word output module, regardless of what parameter format you choose. The adapter uses these words for adapter status information. Modules for each of the individual slots (FLEX I/O modules) must also follow these word assignments.

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Configure the Adapter for Master/Slave Communication 87

Most Significant Bit

Bit Number

Consistency over 0 byte or word 1 whole length

length format 0 byte byte structure 1 word word structure

input/output 00 specific identifier formats 01 input 10 output 11 input-output

Length of data 00 1 byte resp. 1 word

15 16 byte resp. 16 words

76543210

Least Significant Bit

•

1160

The format of the adapter status word is defined in the following table:

Adapter Status Word

Input Status Word

Bit Position Name Description

1…7

8…15

Bit Position Name Description

0…15 Reserved sent as zeroes.

I/O Module Faults are caused by:

• transmission errors on the FLEX I/O backplane

• bad module

• removed module

• incorrect module inserted

Address Change This bit is set when the Node Address switch is

changed since power up.

Reserved Sent as zeroes.

I/O Module Fault This bit is set when an error is detected in a slot

position (bits 0…7 refer to slots 1…8).

Output Status Word

The adapter expects the identifier area for each of the eight FLEX I/O slots to be 2 bytes. The DP input/output identifier and all specific DP identifiers (except the empty module) are not supported.

The identifier byte and its format are described in the following illustration. This byte is defined in Part 3 of the PROFIBUS Standard.

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88 Configure the Adapter for Master/Slave Communication

The maximum size of this identifier area is 17 bytes. If no FLEX I/O modules are installed in the upper slots, the length may be less. Consistency must be over a word.

Check Configuration Example

Check Configuration Message when used with Send Parameter Auto Configure or Condensed Format (Length 10 bytes)

Name Identifier Byte Description

Octet 1: 50h Input Status Word (input – 1 word)

Octet 2: 60h Output Status Word (output – 1 word)

Octet 3: 51h Slot 1, input module 2 words

Octet 4: 60h Slot 1, output module 1 word

Octet 5: 00h Slot 2, input module empty

Octet 6: 60h Slot 2, output module 1 word

Octet 7: 57h Slot 3, input module 8 words

Octet 8: 60h Slot 3, output module 1 word

Octet 9: 50h Slot 4, input module empty

Octet 10: 65h Slot 4, output module 6 words

I/O sizes configured: 22 input bytes, 20 output bytes

Refer to your configuration tool publications for information on how and where to enter this data.

Check Configuration Example

Check Configuration Message when used with Send Parameter Full Format (Length 10 bytes)

Name Identifier Byte Description

Octet 1: 50h Status Word (input – 1 word)

Octet 2: 60h Output Status Word (output – 1 word)

Octet 3: 51h Slot 1, input module 2 words

Octet 4: 00h Slot 1, output module 1 word

Octet 5: 00h Slot 2, input module empty

Octet 6: 60h Slot 2, output module 1 word

Octet 7: 57h Slot 3, input module 8 words

Octet 8: 00h Slot 3, output module 1 word

Octet 9: 00h Slot 4, input module empty

Octet 10: 63h Slot 4, output module 6 words

I/O sizes configured: 22 input bytes, 12 output bytes

Refer to your configuration tool publications for information on how and where to enter this data.

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Rockwell Automation 1794-APBDPV1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Preface

Who Should Use this Manual

Purpose of this Manual

Related Documentation

Common Techniques Used in this Manual

Overview of the FLEX I/O PROFIBUS APBDPV1 Module

Overview

The FLEX I/O System

Purpose of the FLEX I/O PROFIBUS APBDPV1 Adapter

Differences Between APB and APBDPV1 Adapters

DP-V1 Protocol

Functionality

Bandwidth and Range

PROFIBUS APBDPV1 Adapter Components

Diagnostic Indicators

Network Connector

Set the Node Address Switches

Mount and Remove Your System

Power Wiring

Optional Accessories

Extender Cables (1794-CE1 or -CE3)

Mounting Kit (1794-NM1)

Chapter Summary

Communicate With Your Module

Overview

Communication Over the I/O Backplane

Polled I/O Structure

Adapter Input Status Word

Map Data into the Image Table

Logic Status/Analog Feedback Definition

Logic Command/Analog Reference Definition

Defaults

Chapter Summary

Connect Your Adapter to the PROFIBUS DP Network

Overview

The DP Physical Layer

Cabling and Equipment Required for Line A Type

Cables

T-junction Connectors

Termination Blocks

Bus Connector

Cabling and Equipment Required for Line B Type

Cables

T-junction Connectors

Termination Blocks

Bus Connector

Connect the Adapter to the Network

Connect Wiring to the Adapter

Terminate the Network

Terminate at the Adapter Using Line A

Terminate at the Adapter Using Line B

Chapter Summary

Configure the Adapter for Master/Slave Communication

Overview

How Master/Slave Communication Takes Place

User Parameter Data

Enter User Parameter Data

Auto Configure Format

Condensed Format

Full Format

Enter Check Configuration Data