Micromod 2050R User Manual

MODBUS Communications for User’s Guide

MODCELL 2050R Supplement

Indicating Process Controller

2050R Model B Version 2.8
2051R Model B Version 2.8

MicroMod Automation, Inc.

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IB-23C650M

CONTENTS

CONTENTS

Page

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

About This Supplement . . . . . . . . . . . . . . . . . . . . . . 1

About Modbus Communications . . . . . . . . . . . . . . . . 1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Controller Option Requirements . . . . . . . . . . . . . . . . 3

2-Wire Modbus Network Connections . . . . . . . . . . . . 3

4-Wire Modbus Network Connections . . . . . . . . . . . . 5

Communication Applications . . . . . . . . . . . . . . . . . . . . . . 9

Standard Control with Modbus Communications . . . . 9

Supervisory Control . . . . . . . . . . . . . . . . . . . . . . . . 9

Computer Control . . . . . . . . . . . . . . . . . . . . . . . . . . 10

RS-485 Communications Setup . . . . . . . . . . . . . . . . . . . 11

Basic Operation With a Host Device . . . . . . . . . . . . . . . . 27

Enabling Write Communication With a Host . . . . . . . 27

Standard Communication With a Host . . . . . . . . . . . . 27

Supervisory Station . . . . . . . . . . . . . . . . . . . . . . . . . 29

Computer Auto/Manual Station . . . . . . . . . . . . . . . . . 30

Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . 31

Modbus Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Communications Speed . . . . . . . . . . . . . . . . . . . . . . 33

Message Response Time . . . . . . . . . . . . . . . . . . . . 33

Messages Supported . . . . . . . . . . . . . . . . . . . . . . . 34

Message Formats . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Controller Attribute Listing - Register Data . . . . . . . . . . . . 39

Common Data (registers) . . . . . . . . . . . . . . . . . . . . 39

Ramp/Soak Profile and Totalizer Data (registers) . . . . 42

Tuning Parameter Data (registers) . . . . . . . . . . . . . . 44

Alarm Data (registers) . . . . . . . . . . . . . . . . . . . . . . . 46

Computer Activity Data (registers) . . . . . . . . . . . . . . 47

Ramp/Soak Profile Configuration Data (registers) . . . . 49

More Computer Activity Data (registers) . . . . . . . . . . 51

Controller Attribute Listing - Coil Data . . . . . . . . . . . . . . . 55

Computer Activity Data (coils) . . . . . . . . . . . . . . . . . 55

Digital Input and Output Data (coils) . . . . . . . . . . . . . 56

Ramp/Soak Data (coils) . . . . . . . . . . . . . . . . . . . . . . 57

i

IB-23C650M

CONTENTS

CONTENTS (Cont’d)

Page

Totalizer Data (coils) . . . . . . . . . . . . . . . . . . . . . . . . 57

Autotune Data (coils) . . . . . . . . . . . . . . . . . . . . . . . . 57

Process Alarm Data (coils) . . . . . . . . . . . . . . . . . . . . 58

Diagnostic Data (coils) . . . . . . . . . . . . . . . . . . . . . . . 59

Ramp/Soak Profile Data (coils) . . . . . . . . . . . . . . . . . 60

Record of Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

ILLUSTRATIONS

Figure Page

1 Typical 2-Wire Modbus Network Connections . . . . . . 4

2 Typical 4-Wire Modbus Network Connections with . . . 6
a Host Device as Master
3 Typical 4-Wire Modbus Network Connections with . . . 7
a MODCELL Multiloop Processor as Master

TABLES

Table Page

1 RS-485 Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . 12

2 Modbus Messages Supported by MODCELL 2050 . . . 35

ii

IB-23C650M

INTRODUCTION

INTRODUCTION
About This Supplement

This supplement provides instructions for installation, setup, and use of
the Modbus RS-485 serial communications option available in the
MODCELL 2050 Single Loop Controller. Comprehensive instructions
covering all aspects of the controller not related to Modbus
communication are included in the

IB-23C650 User’s Guide.

Specific information provided in this supplement is as follows:

• Instructions for connecting the controller to a Modbus network using
either a 2-Wire or 4-wire configuration.

• Application information including controller operation as a supervisory
station or computer auto/manual station using Modbus
communications.

• Step-by-step instructions for setup of the communications function
using the RS-485 MENU in the controller data base.

• Operating instructions for the controller when Modbus
communication with a host device is enabled.

• A description of the Modbus messages supported and the message
formats.

• Controller attribute reference data. The listing includes register data
for numeric attributes and coil data for boolean (discrete) attributes.

About Modbus Communications

A 2050R controller and a host device connected to a Modbus network
communicate via a master/slave relationship. The host device functions
as the Modbus master and the controller functions as the slave. The
master is in command of the communications transaction and talks to
one slave (controller) at a time. The master sends a message to a
slave and waits to receive an answer back from that slave before it
talks to the another slave. Each slave has a unique address which

1

IB-23C650M

INTRODUCTION

allows it to be identified by the master. This permits multiple slaves
(controllers) to reside on a single Modbus network.

The controller can be assigned any address between 1 and 247.
Addresses are set in the RS-485 MENU as part of the setup for
modbus communication. Address 0 is the “broadcast” address. Only
write messages can use it. All controllers process the message, but
there is no response back to the host.

Other types of slaves may reside on a network with the controllers.
Modbus does not support peer-to-peer communications where two
controllers can talk directly with each other.

2

IB-23C650M

INSTALLATION

INSTALLATION

This section provides instructions for making Modbus network connections
using either a 2-wire or 4-wire configuration. This information assumes that
physical installation and all other electrical connections are being made in
accordance with the instructions in IB-23C650.

Before making any connections, be sure the controller can support Modbus
communications; see the option requirements below.

Controller Option Requirements

The controller must be equipped with an option card and firmware Version 2 to
run MODBUS RS-485 serial communications. The option card (Catalog No.
2050NZ10100A) and Version 2 firmware may have already been installed in
the controller during manufacture. If necessary these items can be installed in
the field. Instruments manufactured with the option card and Version 2
firmware are identified by digits in the instrument catalog number as shown
below:

Sample Catalog Number: 2050RZ10 1 02 A
RS-485 Communications Option Card
RS-485 Firmware Version

2-Wire Modbus Network Connections

Connections for a typical Modbus network using a 2-wire configuration are
shown in Figure 1. The host device functions as the master and the
controllers function as slaves. It is recommended that no more than 32 devices
be connected on a single network. The devices and host must have a
common ground.

The master is responsible for providing the 560 ohm pull-up and pull-down
bus stabilizing resistors. Connect 120 ohm termination resistors across the
transmission line at both ends as shown. The number of devices can be
increased by the use of repeaters. The termination resistors may not be
required if the line length is very short.

Cable requirements depend on the length of the run. For short runs of 10 to
25 ft (3 to 6m) virtually any 2-wire shielded or twisted pair is suitable. For runs
up to 4000 ft (1219m) Belden 9841 cable or equivalent is recommended. This
cable is a 24 AWG twisted pair with a foil shield. The insulation is low
dissipation (polypropylene). A drain wire is provided for grounding the shield.

3

IB-23C650M

INSTALLATION

Personal Computer Modbus Master

RS485 Interface

+5V dc

560

All resistors are 0.25W.

Other 2050R's

wired same way

without resistors.

RX/TX+

120

RX/TX-560

COM

120

RX+

RX -

TX+

TX -

COM

Last

2050R

Figure 1. Typical 2-Wire Modbus Network Connections

.

4

IB-23C650M

INSTALLATION

4-Wire Modbus Network Connections

Connections for typical Modbus networks using a 4-wire configuration are
shown in Figures 2 and 3. The host device functions as the master and the
controllers function as slaves. It is recommended that no more than 32 devices
be connected on a single network. The number of devices can be increased
by the use of repeaters.

When the host is a device such as a personal computer, the instruments and
host must have a common ground as shown in Figure 2. When the host is a
MODCELL Multiloop Processor, Figure 3, connection of the processor to the
instrument common line is not required because the processor connections
are optically isolated.

The master is responsible for providing the 560 ohm pull-up and pull-down
bus stabilizing resistors. In the MODCELL processor, these resistors are
provided in the RS-485 communications module, and the TERM switch on the
module must be set at YES to connect the resistors to the network (see
IB-23C600 MODCELL Multiloop Processor Installation Instructions for
more information). Connect 120 ohm termination resistors across the
transmission line at both ends as shown. The termination resistors may not be
required if the line length is very short.

Cable requirements depend on the length of the run. For short runs of 10 to
25 ft (3 to 6m) virtually any 2-wire shielded or twisted pair is suitable. For runs
up to 1000 ft (305m), Belden 9502 cable or equivalent is recommended. This
cable is a dual 24 AWG twisted pair with an overall foil shield. A drain wire is
provided for grounding the shield. For runs up to 4000 ft (1219m) Belden
9729 or equivalent is recommended. This cable is a dual 24 AWG twisted pair
with a foil shield for each pair. The cable insulation is low dissipation
(polypropylene). Two separate drain wires are provided for grounding the
shields.

5

IB-23C650M

INSTALLATION

Personal Computer Modbus Master

RS485 Interface

+5V dc

560

560

560

560

2050R Controller

(Modbus Slave)

All resistors are 0.25W.

Other 2050R's

wired same way

without resistors.

RX+

120

RX-

TX+

120

TX-

COM

120

120

RX+

RX -

TX+

TX -

COM

Figure 2. Typical 4-Wire Modbus Network Connections with a Host

Device as Master

6

Last

2050R

IB-23C650M

INSTALLATION

Modcell Processor

Isolated +5Vdc

560

TERM

Switch

YES

Modbus Master

2034N RS-485 MODULE
(Module Locations 31 & 32)

2050R Controller

(Modbus Slave)

S31

1

2

S32

1

2

All resistors are 0.25W.

Other 2050R's

wired same way

without resistors.

RX+

120

RX-

TX+

120

TX-

120

120

RX+

RX -

TX+

TX -

COM

2050R

Figure 3. Typical 4-Wire Modbus Network Connections with a

MODCELL Multiloop Processor as Master

Last

7

IB-23C650M

INSTALLATION

Blank Page

8

IB-23C650M

COMMUNICATION APPLICATIONS

COMMUNICATION APPLICATIONS

The following are sample applications available with the controller through the
use of Modbus communications. The RS-485 MENU is used to set up the
controller for these applications. The setup requirements are described in
detail in Table 1.

Standard Control With Modbus Communications

For this application, the instrument acts as a stand alone single loop controller
which can receive read/write commands from a host Modbus device such as a
personal computer, MODCELL Multiloop Processor, PLC, etc. Multiple
instruments and other devices can be on a single Modbus network. Each
device on a network must have a unique address. The instrument address is
assigned using the Bus Address attribute in the RS-485 MENU.

During runtime operation, the last attribute entry to the controller becomes the
active entry. For example, if the operator sets an active set-point value via the
instrument display and moments later the host sends a new active set-point
value, the controller uses the operators value until it receives the host value.
At that time the host value becomes the new active set-point value.

A prompt in the DISPLAYS MENU permits the operator to disable the host
from writing to the controller. The host can still receive data from the
instrument, but can not write to it. This is useful if the operator must maintain
manual control of the process and does not want the host to write to the
instrument. The operator can reinitiate the host write capacity via the
DISPLAYS MENU when required.

The Computer Timeout attribute is not active in this application. When
necessary, this attribute is initialized by the host as a means of notifying the
instrument of a communication failure. In this application, failure of the host or
the communications has no effect on instrument operation. The controller
continues to operate with its current attribute values as if nothing happened.

Supervisory Control

The controller receives its set-point from the host device in a supervisory
control application. All other aspects of controller operation are similar to
standard control as described above. The PID control function is provided by
the controller.

9

IB-23C650M

COMMUNICATION APPPLICATIONS

Attributes in the RS-485 MENU permit the supervisory control mode to be
indicated via the set-point status display on the front of the instrument. Each
of the three characters in the status display is configurable so that the user
can choose an appropriate mnemonic to represent the supervisory control
mode.

A timeout value can be defined for communications traffic to the instrument via
the Computer Timeout attribute. An activity timer in the instrument is
initialized by the host when operation starts. This action also enables the
configured set-point status display.

The timer monitors the communications bus for activity to the instrument
within the specified timeout period. If there is no communications activity to
the instrument during the specified time, a "computer failure" is declared.
During a computer failure the controller assumes local control with I/O and
mode states as defined under "Computer Failure Setup" in the RS-485
MENU.

When the controller is receiving a set-point from the host, the set-point status
display can be configured to indicate that the host is the set-point source. The
R/L key still performs its normal function. The set-point status display
indicates changes in the set-point source ( LOC, LO1, etc. ).

Computer Control

In a computer control application, the instrument functions as a computer
auto/manual station. The host performs the PID control function with the
results communicated to the controller and then to the field.

Attributes in the RS-485 MENU permit the computer control mode to be
indicated via the control and set-point status displays on the front of the
instrument. Each of the three characters in each status display is configurable
so that the user can choose appropriate mnemonics to represent the computer
control mode and set-point status.

A computer timeout value is defined and a timer monitors communications in
the same manner as for supervisory control. When the computer is active, the
function of the AUTO, R/L and Maunal keys can be configured to provide a
signal to the computer upon which it can take some programmed action.

10

IB-23C650M

RS-485 COMMUNICATIONS SETUP

RS-485 COMMUNICATIONS SETUP

Before starting the communications setup, refer to the Setup Section in
IB-23C650 for information about the setup preparation, method, and controls.

Perform the communications setup using the RS-485 MENU as described in
Table 1.

Note: In order to access the RS-485 MENU, the RS-485 Communications

Enable attribute in the BASE CONFIGURATION MENU must be set at
YES. Refer to Table 1, Base Configuration in IB-23C650.

11

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

1

2

3

4

5

RS-485 Menu. (requires option board)

UP

moves to RELAYS **MENU**.

DN

moves to RAT BIAS **MENU** if A/M ratio bias

is enabled, or to SETPTS **MENU** otherwise.

SCRL

advances to Step 2 (read only in auto).

Bus Enable

UP

or

DN

selects ON or OFF.

SCRL

to advance to Step 3.

Instrument Address

UP

or

DN

sets instrument address.

SCRL

to advance to Step 4.

Baud Rate

UP

or

DN

sets instrument baud rate.

SCRL

to advance to Step 5.

Parity Selection

UP

or

DN

sets instrument parity.

SCRL

to advance to Step 6.

Top

Display

RS-485

BUS

BUS

BAUD

PARITY

6

7

12

Stop Bit Selection

UP

or

DN

sets number of stop bits.

SCRL

to advance to Step 7.

Allowed Access Type

UP

or

DN

sets communications access type.

SCRL

to advance to Step 8.

STOP

ACCESS

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

**MENU**

ENABLE ON

Bottom
Display

Entry Description

None.

= enables the bus for communications with a
host device.
= disables the communications bus from

OFF

receiving or writing with a host device.
The bus must be disabled in order to make
changes in the following steps.

ADDRESS XXX Where X is any address between 1 and 247.

Each instrument on a bus must have a unique
address.

RATE XXXX Where X is one of the following baud rates;

150, 300, 1200, 2400, 4800, 9600, 19200,

38400. All devices on the same bus must have
the same baud rate.

SELECT

ODD
EVEN

BITS 1

= Parity calculation is odd.
= Parity calculation is even.
Note: Total word length equals start bit (1) +
data (8 bits) + parity (1) + stop bits (1/2).
Total word length can be 11 or 12 bits.

= One stop bit appended to character.

2

= Two stop bits appended to character.

TYPE RD_ONLY

RD/WRITE

= Allows the host device to read only from the
controller.
= Allows the host device to read data from and
write data to the controller.

13

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8

8.1

8.2

Computer Activity Setup.

UP

begins setup at Step 8.1.

SCRL

to advance to Step 9 (Enable Bus).

Computer Activity Timeout.

UP

or

DN

sets value.

SCRL

to advance to Step 8.2.

Computer Activity Mnemonic (Auto )

UP

or

DN

sets value (press

press

UP

to start at A or press

Press

SCRL

to access the next character.

Repeat through the third character. Press
after the third character to continue with step 8.3.

UP

to begin then

DN

to start at 9 ).

Top

Display

COMPUTER

COMPUTER

CMP AUTO

SCRL

8.3

14

Computer Activity Mnemonic (Manual)

UP

or

DN

set values and
characters as described in Step 8.2. Press
after the third character to continue with step 8.4.

SCRL

accesses

SCRL

CMP MAN

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

SETUP

Bottom
Display

Entry Description

Steps 8.1 through 8.12.6.1.1allow setup for the
controller to be used as a computer
auto/manual (CAM) or supervisory station when
connected to a host device. No entries are
required if the instrument is to be used as a
stand alone controller which can receive
read/write commands from a host device.

TIMEOUT XXXXX X represents a time between 1 and 16383

seconds. The computer activity timeout
function is initialized and maintained by the
computer (host). If the time between sessions
of bus activity is greater than this value, a
Computer Fail is declared. This causes the
activity timer to be disabled, and the computer
status reverts to LOCKED. The controller
returns to local with parameters as defined in
Step 8.12.

MNEMONIC XXX Where X = any of the following characters:

Letters A through Z,
Any of the special characters:

b, c, super c, d, h, sub L, super L,
super m, super n, o, r, super T, u,
super V, w, <, >, =, +, –, *, #, /, %,
degrees (super o), or space,

Numbers 0 through 9.
Mnemonic appears in the control mode status
display when the activity timer is initialized by
the host and control mode is automatic.
Default mnemonic is CMP.

MNEMONIC XXX Where X = any of the characters listed in

Step 8.2
Mnemonic appears in the control mode status
display when the activity timer is initialized by
the host and control mode is manual.
Default mnemonic is MAN.

15

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8.4.

8.5

8.6

Computer Control Mode Value

UP

or

DN

sets value.

SCRL

to advance to Step 8.5

Computer Set-point Mnemonic (Local)

UP

or

DN

sets value (press

press

UP

to start at A or press

Press

SCRL

to access the next character.

Repeat through the third character. Press
after the third character to continue with Step 8.6.

Computer Set-point Mnemonic (Local 2)

UP

or

DN

set values and
characters as described in Step 8.5. Press
after the third character to continue with Step 8.7.

UP

SCRL

to begin then

DN

to start at 9.

accesses

Top

Display

COMPUTER

CMP LOC

SCRL

CMP LO2

SCRL

8.7

16

Computer Set-point Mnemonic (Local 3)

UP

or

DN

set values and
characters as described in Step 8.5. Press
after the third character to continue with Step 8.8.

SCRL

accesses

SCRL

CMP LO3

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

MODE VAL XXX

Bottom
Display

Entry Description

Where X = any value between 0 and 255.
This value is OR'd into bits 9-12 of the Control
Mode register (#14) when the activity timer is
enabled. Default value is 1.

MNEMONIC XXX Where X = any of the following characters:

Letters A through Z,
Any of the special characters:

b, c, super c, d, h, sub L, super L,
super m, super n, o, r, super T, u,
super V, w, <, >, =, +, –, *, #, /, %,
degrees (super o), or space,

Numbers 0 through
Mnemonic appears in the set-point status
display when the activity timer is initialized by
the host and set-point source is local, or when
coil #8 is True and the computer set-point
mode is Local. Default is LOC.

MNEMONIC XXX Where X = any of the characters listed in

Step 8.5.
Mnemonic appears in the set-point status
display when the activity timer is initialized by
the host and set-point source is Local 2.
Default is LO2.

MNEMONIC XXX Where X = any of the characters listed in

Step 8.5.
Mnemonic appears in the set-point status
display when the activity timer is initialized by
the host and set-point source is Local 3.
Default is LO3.

17

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8.8

8.9

8.10

8.11

Computer Set-point Mnemonic (Local 4)

UP

or

DN

set values and
characters as described in Step 8.5. Press
after the third character to continue with Step 8.9.

Computer Set-point Mnemonic (Remote)

UP

or

DN

set values and
characters as described in Step 8.5. Press
after the third character to continue with Step 8.10.

Computer Set-point Mode Value.

UP

or

DN

sets value

SCRL

to advance to Step 8.11

Use Computer Active Tag

UP

or

DN

selects yes or no.

SCRL

to advance to Step 8.11.1 from yes or

Step 8.12 (Computer Failure Setup) from no.

SCRL

SCRL

Top

Display

CMP LO4

accesses

SCRL

CMP REM

accesses

SCRL

COMPUTER

USE CMP

8.11.1

8.12

18

Computer Active Tag

UP

or

DN

sets value (press
press

UP

to start at letter A or press

9.
Press

SCRL

to access the next character.

Repeat through the last character. Press
after the last character to advance to Step 8.12

Computer Failure Setup.

UP

begins setup at step 8.12.1.

SCRL

to advance to Step 9 (bus enable).

UP

to begin then

DN

to start at

SCRL

COMPUTER

CMP FAIL

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

MNEMONIC XXX

Bottom
Display

Entry Description

Where X = any of the characters listed in
Step 8.5.
Mnemonic appears in the set-point status
display when the activity timer is initialized by
the host and set-point source is Local 4.
Default is LO4.

MNEMONIC XXX Where X = any of the characters listed in

Step 8.5.
Mnemonic appears in the set-point status
display when the activity timer is initialized by
the host and set-point source is remote.
Default is REM.

SPMD VAL XXX Where X = any value between 5 and 255.

This value is OR'd into bits 13-6 of the the set­point mode register (#15) when the activity
timer is enabled. Default value is 1.

ACT TAG YES

= Display the computer active tag configured
in Step 8.11.1 instead of the Tag Name
configured in the Tune Menu when the activity
timer is initialized by the host, This display
appears in the top location in the Displays
Menu.
=Don’t display computer active tag.

NO

ACT TAG XXXXXXXX Where X = any of the characters listed in

Step 8.5.
This is the tag name displayed when Step 8.11
is set at yes. Default tag is COMPUTER.

SETUP This menu provides setup for the control mode,

output values, set-point value and relays status
following a computer failure. A failure is
defined as a loss of communications from teh
computer for a time greater than the timeout
period configured in step 8.1.

19

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8.12.1

8.12.1.1 Computer Fail Output.

8.12.1.1.1 Computer Fail Output Value.

8.12.2

Computer Fail Control Mode.

UP

or

DN

sets desired mode.

SCRL

to advance to

Step 8.12.2 from AUTO if output 2 is available
Step 8.12.3 from AUTO if Relay A is available
Step 8.12.4 from AUTO if Relay B is available
Step 8.12.5 from AUTO if Relay C is available

or to Step 8.12.1.1 otherwise.

UP

or

DN

sets control output value.

SCRL

to advance to Step 8.12.1.1.1 (Computer

Failed Output Value) from "NEW VALU" or to any
step between 8.12.2 and 8.12.5 for outputs
enabled as manual or computer only. If no
outputs are assigned to manual or computer only,
continue with Step 8.12.6 (Computer Fail Set-point
Mode).

UP

or

DN

sets output value.

SCRL

to advance to any step between 8.12.2 and

8.12.5 for outputs enabled as manual or computer
only. If no outputs are assigned to manual or
computer only, continue with Step 8.12.6
(Computer Fail Set-point Mode).

Computer Fail Output 2.

UP

or

DN

sets value

SCRL

to advance to Step 8.12.2.1 (Computer Fail

Output 2 Value) from "NEW VALU" or to any step
between 8.12.3 and 8.12.5 for outputs enabled as
manual or computer only. If no additional outputs
are assigned to manual or computer only, continue
with Step 8.12.6 (Computer Fail Set-point Mode).

Top

Display

CMP FAIL

CMP FAIL

CMP FAIL

CMP FAIL

20

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

CTL MODE LAST

OUTPUT LAST

Bottom
Display

MANUAL

AUTO

NEW VALU

Entry Description

=controller maintains the same control mode

after a communications failure has been
detected.
=controller operates in manual following a
computer failure with the output as defined in
Step 8.12.1.1.
=controller operates in automatic following a
computer failure with the set-point as defined in
Step 8.12.6.1.1.

=control output holds at the output value prior
to the computer failure.
=control output set to value set in Step

8.12.1.1.1.
Note: This new value is used only if the
controller mode in Step 8.12.1 is manual (MAN)
and a computer failure is detected.

OUT VAL XXX Where X = any value between 0 and 100%.

This is the output of the controller if a computer
failure is detected and the controller is in
manual.

OUTPUT 2 LAST

NEW VALU

=output 2 holds at the same value prior to the

computer failure.
=output set to value set in Step 8.12.2.1.
Note: This new value is used only if the
retransmission variable in the "MA OUTP
MENU" has been selected as manual or
computer only, and if a computer failure is
detected (see Table 4 in IB-23C650 for more
information).

21

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8.12.2.1 Computer Fail Output 2 Value.

UP

or

DN

sets output 2 value.

SCRL

to advance to any step between 8.12.3 and

8.12.5 for additional outputs enabled as manual or
computer only. If no outputs are assigned to
manual or computer only, continue with Step

8.12.6 (Computer Fail Set-point Mode).

8.12.3

8.12.4

8.12.5

8.12.6

Computer Fail Relay A.

UP

or

DN

sets relay condition.

SCRL

to advance to Step 8.12.4 for relay B or

Step 8.12.5 for relay C if they have been selected
for manual or computer only or to Step 8.12.6
(Computer Fail Set-point Mode) if relays B or C
have not been selected.

Computer Fail Relay B.

UP

or

DN

sets relay condition.

SCRL

to advance to step 8.12.5 for relay C if it

has been selected for manual or computer only or
to Step 8.12.6 (Computer Fail Set-point Mode) if it
has not been selected.

Computer Fail Relay C.

UP

or

DN

sets relay condition.

SCRL

to advance to Step 8.12.6 (Computer Fail

Set-point Mode).

Computer Fail Set-point Mode.

UP

or

DN

sets the set-point mode.

SCRL

to advance to Step 9 (Bus Enable) from

LAST, REMOTE, or a local set-point configured as
fixed in the set-points menu, or to Step 8.12.6.1
(Computer Fail Set-point) otherwise.

Top

Display

CMP FAIL

CMP FAIL

CMP FAIL

CMP FAIL

CMP FAIL

22

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

Bottom
Display

OUT2 VAL XXX

RELAY A LAST

OFF
ON

RELAY B LAST

OFF
ON

RELAY C LAST

OFF
ON

SPT MODE LAST

LOCAL
LOCAL-2
LOCAL-3
LOCAL-4

REMOTE

Entry Description

Where X = any value between 0 and 100%.
This is the output 2 value the controller will
have if the retransmission variable in the "MA
OUTP MENU" has been selected as manual or
computer only and a computer failure has been
detected.

=relay state remains as it was prior to the

detection of a computer fail.
=relay goes to off state after a computer fail.
=relay goes to on state after a computer fail.

=relay state remains as it was prior to the

detection of a computer fail.
=relay goes to off state after a computer fail.
=relay goes to on state after a computer fail.

=relay state remains as it was prior to the

detection of a computer fail.
=relay goes to off state after a computer fail.
=relay goes to on state after a computer fail.

= controller uses the same set-point source
after a computer fail has been detected.
=Selecting any other set-point source causes
the controller to use the selected set-point after
a computer fail has been detected.

Note: The local set-points need not be enabled
in the "SETPTS MENU" for this use. If
ramp/soak is running at the time of a computer
fail, and a mode other than LAST has been
selected, ramp/soak will discontinue.

23

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

Step Step Description

8.12.6.1 Computer Fail Set-point

UP

or

DN

sets the set-point value.

SCRL

to advance to step 9 (Bus Enable) from

LAST or Step 8.12.6.1.1 (Computer Fail Set-point
Value) from NEW VALU.

8.12.6.1.1 Computer Fail Set-point Value.

UP

or

DN

sets the set-point value.

SCRL

to advance to Step 9 (Bus Enable)

9

Bus Enable.

UP

or

DN

SCRL

to advance to Step 1

selects ON or OFF.

Top

Display

CMP FAIL

CMP FAIL

BUS

24

RS-485 COMMUNICATIONS SETUP

Table 1. RS-485 Setup Menu

IB-23C650M

Middle

Display

SETPOINT LAST

Bottom
Display

NEW VALU

Entry Description

If any of the LOCAL set-point sources were
selected in the previous step, "LAST" will
cause the controller to use the current set-point
value in that location. Selecting "NEW VALU"
allows a new value (defined in Step 8.12.6.1.1)
to be written into the set-point source register.
Note: The set-point value entered into that set­point source in the "SETPTS MENU" will be
overwritten by the new value.
Ex.; LOC3 is selected as the computer fail set­point mode (step 8.4.6) and has been set at

58.3 in the "SETPTS MENU". The computer
fail set-point value (set in Step 8.12.6.1.1) is set
at 38.6. When a computer fail is detected, 38.6
will be written into LOC3.

SPT VALU XXXX Where X = -3000 to 30000. This value is

limited by the specific set-point limits.

ENABLE ON

= enables the bus for communications with a
host device.
= disables the communications bus from

OFF

receiving or writing with a host device.
This duplicate entry is provided for

convenience since the bus must be re-enabled
following any parameter change.

NOTE: IF this attribute setting is changed

from OFF to ON, communication with
the host device must be initiated by
switching from LOCKED to
REQUESTED at the computer (CMP)
prompt in the DISPLAYS MENU. See

Basic Operation With a Host
Device for more information.

25

IB-23C650M

RS-485 COMMUNICATIONS SETUP

Blank Page

26

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

BASIC OPERATION WITH A HOST DEVICE

This section supplements the Basic Operation Section in IB-23C650.
It covers the operational activities related to Modbus communication
which are performed in the DISPLAYS MENU.

Enabling Write Communication With a Host

After completing the RS-485 communications setup, the host can read
instrument data when the bus is enabled (see Table 1, Step 9). If write
communication is required and the communication mode is LOCKED,
the write function can be enabled as follows:

1. Go to the DISPLAYS MENU.

2. Press scroll. This allows the
computer activity status to be
displayed in the DISPLAYS
MENU.

3 Press scroll until CMP appears

in the bottom status display
location.

4. Press

Standard Communication With a Host

In the standard communications mode the instrument functions as a
stand alone controller which can receive read and write commands from
the host. In this mode the last attribute entry becomes the active entry.
For example, if the operator sets an active set-point value via the
instrument display, and moments later the host sends a new set-point
value, the controller uses the operators value until it receives the host
value. At that time the host value becomes the new active set-point.

DN

or UP key to initiate
communication with the host.
When the key is pressed, the
engineering display reads
REQUESTD for a few seconds,
then changes to ENABLED.

27

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

If necessary, the operator can disable the host from writing to the
controller. This gives the operator total control of the instrument
operation. The host can still read data from the instrument but cannot
write to it.

To disable the host, access the CMP status display as described in the
previous section. When CMP appears, press the
change the status from ENABLED to LOCKED.

DN

or UP key to

28

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

Supervisory Station

When the controller and host device are configured to provide a
supervisory function, the controller receives its set-point from the host
device. The controller executes its PID algorithm in the normal manner,
and in general functions the same as a standard controller. This activity
is initiated by the host.

The displays and control key operation for a supervisory station are as
follows:

Tag display can be configured to
indicate that the host has initiated
activity. Default indication is
COMPUTER.

The auto and manual keys perform
their normal function.

This status display shows a
configured mnemonic when the
host initializes activity. The default
is CMP. For supervisory operation,
the display can be configured to
show AUT to indicate that the PID
function still resides in the
controller.

The R/L key can be disconnected
by a coil when the host initializes
activity. This allows the key to be
read by the host to select multiple
set-points stored in the host.

The status display shows a
configurable mnemonic indicating
which host set-point is being
written to the controller. Defaults
are: LOC, LO2, LO3, LO4 and
REM.

To check the Modbus
communication status, press the
scroll key to access CMP. Status
is indicated as ENABLED or
LOCKED.

29

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

Computer Auto/Manual Station

When the controller and host device are configured to provide a
computer auto/manual function, the host performs the PID control
function. The results are communicated to the instrument and then to
the field. This activity is initiated by the host.

The displays and control key operation for a computer auto/manual
station are as follows:

Tag display can be configured to
indicate that the host has initiated
activity. Default indication is
COMPUTER.

The auto and manual keys can be
disconnected by a coil when the
host initiates activity. This allows
the keys to be read by the host
which then initiates programmed
action.

This status display shows a
configured mnemonic indicating the
programmed action. Defaults are
CMP for automatic and MAN for
manual.

30

The R/L key permits selection of
any set-point enabled in the set­points menu. This may be
disconnected by a coil so the R/L
key can be read by the host to
select set-points stored in the host.

The status display shows a
configurable mnemonic indicating
the set-point source. Defaults are:
LOC, LO2, LO3, LO4 and REM.

To check Modbus communication
status, press the scroll key to
access CMP. Status is indicated
as ENABLED or LOCKED. The
locked status is displayed after the
controller is switched to manual.

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

Diagnostic Messages

The controller provides diagnostic messages which alert the user to
communication problems . The Diagnostic messages are displayed on
the TAG line. When one or more unacknowledged messages exist, the
red LED on the ALARM key flashes, the message alternates with the
TAG on the top display, and the beeper sounds if configured to do so.
This activity continues until all diagnostic conditions are either
acknowledged or no longer active. When only acknowledged diagnostic
messages exist, the red LED is steady and the tag display shows only
the tag.

Press the alarm key to view messages and acknowledge any
unacknowledged conditions using the UP key.

Communication problems are indicated by the following diagnostic
messages:

• [CMP INHB]
RS-485 bus write messages have been locked out by the operator.

• [CMP ERR]
One or more framing, parity, crc, etc. errors has occurred on RS­485 bus.

• [OVERCFGD]
Instrument is unable to complete all configured tasks in less than
250 msec. (operation will continue, but time based activities will be
in error).

31

IB-23C650M

BASIC OPERATION WITH A HOST DEVICE

32

IB-23C650M

MODBUS PROTOCOL

MODBUS PROTOCOL
Communications Speed

The controller supports baud rates of 150, 300, 1200, 2400, 4800, 9600, 19.2K,
and 38.4K baud. Messages are not buffered. A new message (including
broadcast type) will not be accepted until an existing message has been
processed and responded to if necessary.

Message Response Time

The controller typically takes between 10 and 30 milliseconds to respond to a
message requesting 10 registers. This time is from the end of the request
message to the start of the response message.

The total amount of time a message takes to get back and forth between the
host and the slave depends on the message size, baud rate and the slave's
time to process the message. The following information is for a request
message to read 10 registers:

• request message size is 8 characters + 3.5 idle time characters (11.5).

• response message size is 25 characters + 3.5 idle time characters (28.5).

• for this example, a character is 11 bits (1 start, 8 data, 1 parity, 1 stop).

• Therefore, the total typical time using a controller response time of 30

milliseconds is shown below for the various baud rates:

Baud Rate

150 623 2090 2743

300 312 1045 1387
1200 78 261 369
2400 39 131 190
4800 19 65 114
9600 10 33 73

19200 5 16 51
38400 2 8 40

Request Time

(mSec)

Response

Time (mSec)

Total Typical
Time (mSec)

33

IB-23C650M

MODBUS PROTOCOL

Messages Supported

The controller utilizes registers and coils to access information. The following
MODBUS messages are supported by the controller. See the Gould
MODBUS Protocol Reference Guide dated Jan. 1985 for further detail.

Note: In cases where the controller processor is already heavily loaded, it

may be necessary to limit the number of registers or coils addressed
by any single message. Limiting the number of coils and registers in
a single message will avoid pushing the instrument into the "over
configured" condition (>250 milliseconds scan time). Only repetitive
messages are a concern in this regard.

34

IB-23C650M

MODBUS PROTOCOL

Table 2.

MODBUS

Function

Code

MODBUS messages supported by the 2050R Controller

MODBUS

Message Name

01 Read Coil

Status

02 Read Input

Status

03 Read Holding

Registers

04 Read Input

Registers

05 Force Single

Coil

06 Preset Single

Register

08 Loopback

Diagnostic Test

15 Force Multiple

Coils

16 Preset Multiple

Registers

2050R Definition

Read "n" consecutive discrete (boolean) points
from a specified starting point. The controller
returns zeros for points which do not contain
defined data and will nak any request for point
numbers greater than 9999. See Note, page 34.

Same as Read Coil Status.

Read "n" consecutive registers from specified
starting register. The controller returns zeros for
registers which do not contain defined data and
will nak any request for register numbers greater
than 9999. See Note, page 34.

Same as Read Holding Registers

Write one discrete (boolean) point. The controller
will nak this if the point is not currently writeable.

Write one register. The controller will nak this if
the register is not currently writeable. It will also
apply any currently applicable limits to the value
before storage in the database.

Echo the message. Only "Return of Query" is
supported.

Write "n" consecutive coils from a specified
starting coil. The controller will nak if any of the
coils are not currently writeable, but will still do all
the writes which are valid. See Note, page 34.

Write "n" consecutive registers from a specified
starting register. The controller will nak if any of
the registers are not currently writeable, but will
still do all the writes which are valid, applying any
currently applicable limits to the values before
storage in the database. See Note, page 34.

35

IB-23C650M

MODBUS PROTOCOL

Message Formats

The following message formats are used to transfer information between the
controller and a host. Refer to the message format example for format details.

Read Coil Status, Read Input Status

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Starting Coil Number Number of Coils CRC

Slave Response Bytes

0123

Device
Address

Function
Code

Number of
Data Bytes

Data byte #1 ... Data Byte #n CRC

...

x

Read Holding Registers, Read Input Registers

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Starting Register Number Number of Registers CRC

x+1 &

x+2

Slave Response Bytes

0 1 2 3 & 4

Device
Address

Function
Code

Force Single Coil

Number of
Data Bytes

Register #1
data

...

... Register #n

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Coil Number Coil Data

ON = FF00
OFF =0000

Slave Response (simple echo) Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Coil Number Coil Data

ON = FF00
OFF =0000

36

x & x+1

data

x+2 &

x+3

CRC

CRC

CRC

IB-23C650M

MODBUS PROTOCOL

Preset Single Register

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Register Number Register Data CRC

Slave Response (simple echo) Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Register Number Register Data CRC

Loopback Diagnostic Test

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Diagnostic Code

(0000 only)

Data (ignored) CRC

Slave Response (simple echo) Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Diagnostic Code

(0000 only)

Data (ignored) CRC

Force Multiple Coils

Master Message Format Bytes

0 1 2 & 3 4 & 5 6 7

Device
Address

Function
Code

Starting
Coil
Number

Number
of Coils

Number
of Data
Bytes

Data Byte1... Data

...

x

Byte n

Slave Response Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Starting Coil Number Number of Coils CRC

x+1 &

x+2

CRC

37

IB-23C650M

MODBUS PROTOCOL

Preset Multiple Registers

Master Message Format Bytes

x &

0 1 2 & 3 4 & 5 6 7 & 8

Device
Address

Function
Code

Starting
Register
Number

Number
of
Registers

Number
of Data
Bytes

Register
Data 1

...

x+1

... Register

Data n

& x+3

CRC

Slave Response Bytes

0 1 2 & 3 4 & 5 6 & 7

Device Address Function Code Starting Register Number Number of Registers CRC

Coil Data Example

Coil data is packed 1 bit per coil. The low order bit of the first data byte
contains the addressed coil and unused bits are zero filled. For instance, if
coils 22 through 33 are requested, two data bytes will be returned with the coil
data located as follows; (coils 22,24,25,26,29,30,32 and 33 are on).

coil # 29 26 25 24 22 33 32 30

data bytes 1 & 2 10011101 00001101

x +2

38

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

The tables in this section provide a listing of the controller’s numeric attributes
which are addressed as registers. The tables divide the attributes into related
groups such as tuning, alarms, etc. A group of numeric attributes may have
associated boolean (discrete) attributes which are addressed as coils. The
boolean attributes are listed in the next section.

The following tables list the attributes in order by Modbus register number.
The letters below each number indicate whether the attribute is readable and
writeable or read only:

• R W Readable and Writeable

• R _ Read only

Common Data (registers)

Reg.

#

4

Maximum milliseconds used in any

R W

one cycle. This value is updated by
the controller and can be reset to zero
with a write by the host.

5

Average milliseconds used per cycle.

R _

This should not exceed 250
milliseconds.

6

Bits 15 - 4 indicate unacknowledged

R _

process alarms (PA) and diagnostics
(DIAG).

Refer to coil numbers 41-48 for
alarms and 49-64 for diagnostics.

Description Register Value

Bit 15 = PA1
Bit 14 = PA2
Bit 13 = PA3
Bit 12 = PA4
Bit 11 = DIAG1
Bit 10 = DIAG2
Bit 9 = DIAG3
Bit 8 = DIAG4
Bit 7 = DIAG5
Bit 6 = DIAG6
Bit 6 = DIAG7
Bit 6 = DIAG8
Bits 0-3 Not Used

Typically written from
host as 0.

Number of
milliseconds

2050R

Displayed Value

not displayed

not displayed

39

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Common Data (registers) Cont’d

Reg.

#

7

Field Input 1

R _

Note: This register permits reading of
actual process input to 2050R when
Coil #14 is TRUE. Data is copied to
Reg. #10 when Coil #14 is FALSE.

8

Field Input 2

R _

Note: This register permits reading of
actual input 2 to 2050R when Coil
#15 is TRUE. Data is copied to Reg.
#11 when Coil #15 is FALSE.

9

Bits

Bits 15 - 4 indicate active process

15 - 4

alarms (PA) and diagnostics (DIAG).

R _

See Register #6 for bit descriptions.

Bits

Process decimal point. Positions the

1 & 0

decimal point in the process and set-

R _

points engineering displays.

10

Process Variable for Display

R W

• Coil #14 is FALSE:

Description Register Value

Register #9, Bits 1 & 0 = 0
Register #9, Bits 1 & 0= 1
Register #9, Bits 1 & 0= 2
Register.#9, Bits 1 & 0 = 3

Same as Reg. #7 Same as Reg. #7

Actual 2050R Process variable
(field input 1) is displayed

-32000 to +32000

-32000 to +32000

-32000 to +32000

-32000 to +32000

0
1
2
3

Same as Reg. #7

values

Displayed Value

-32000 to +32000

-3200.0 to +3200.0

-320.00 to +320.00

-32.000 to +32.000
displayed when Coil

#14 is TRUE. See

values

displayed when Coil

#15 is TRUE. See

Same as Reg. #7

2050R

Values are not

Reg. #10

Values are not

Reg. #11.

n

n.n

n.nn

n.nnn

values

• Coil #14 is TRUE:
Display value is written from host

11

Active set-point variable

R W

12

R W

13

R W

Register No. 9, Bits 1 & 0 = 0
Register No. 9, Bits 1 & 0 = 1
Register No. 9, Bits 1 & 0 = 2
Register No. 9, Bits 1 & 0 = 3

Control analog output value. -80 to 1100 -8.0 to 110.0

Input No. 2

• Coil # 15 is FALSE:
Input No. 2 value is obtained
from Field Input 2

• Coil #15 is TRUE:
Input No. 2 value is written from
host

Same as Reg. #7

values

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

Same as Reg. #7

values

Same as Reg. #7

values

40

Same as Reg. #7

values

-3000 to 30000

-300.0 to 3000.0

-30.00 to 300.00

-3.000 to 30.000

Same as Reg. #7

values

Same as Reg. #7

values

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Common Data (registers) Cont’d

Reg.

#

14

Computer active control mode value

Bits

(this is a copy of register #77).

9 - 2

This part present only when activity

R W

timer is enabled.

Bit 10

Output Tracking 1

R W
Bit 1

Computer Auto/Manual status.

R W

When Coil #10 is TRUE, the A and M
keys change this status instead of the
controller mode.
This part present only when activity
timer is enabled.

Bit 0

Control mode of 2050R 1

R W

15

Computer (host) Set-point mode value

Bits

This part present only when activity

13 - 6

timer is enabled.

R W

Bits

Computer Remote/Local status.

5 - 0

When Coil #8 is TRUE, the R/L key

R W

changes this status instead of the set­point status.
This part present only when activity
timer is enabled.

Bits

2050R Set-point source 0
2 - 0
R W

16

Analog output #2 value -100 to 1100 -10.0 to 110.0
R W

17

Local set-point 1 value Same as Reg.#11 Same as Reg.#11
R W

18

Local set-point 2 value Same as Reg.#11 Same as Reg.#11
R W

19

Local set-point 3 value Same as Reg.#11 Same as Reg.#11
R W

20

Local set-point 4 value Same as Reg.#11 Same as Reg.#11
R W

Description Register Value

0 to 255 Not Displayed

0
1

0

0

5 to 255 Not Displayed

0
1
2
3
4

•

•

•

to value in register

#123

1
2
3
4

See RS-485 Setup;

Displayed Mnemonic

See RS-485 Setup;

Displayed Mnemonic

IB-23C650M

2050R

Displayed Value

Table 1, Step 8.4.

TRK

AUT

MAN

is configurable,

defaults are shown.

See Reg. #75, 76,

113 & 114

AUT

MAN

Table 1, Step 8.10.

LOC

LO2
LO3
LO4

REM

is configurable for

values 0-5, defaults

are shown.
See Reg #78 &
#115 thru #122

LOC

LO2
LO3
LO4

REM

41

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Ramp/Soak Profile and Totalizer Data (registers)

Reg.

#

30

Ramp/soak segment time remaining.

R _

Time remaining in the currently active
ramp/soak segment.

31

Current ramp/soak cycle. 0 to 65535 0 to 65535

R _

32

Current ramp/soak segment 1 to 10 1 to 10

R _

33

Floating point totalized count hi bytes.

R _

Upper 2 bytes of totalized count in
IEEE floating point format.

Description Register Value

0 to 32000 0.0 to 3200

Displayed Value

2050R

Register #9, bits 1 & 0 = 0

Register #9, bits 1 & 0 = 1

Register #9, bits 1 & 0 = 2

Register #9, bits 1 & 0 = 3

34

Floating point totalized count low

R _

bytes. Lower 2 bytes of totalized
count in IEEE floating point format.

35

Integer totalized count. Permits

R _

transfer of totalized count in integer
format. Tops out at 65K

Register # 9, Bits 1&0 = 0
Register # 9, Bits 1&0 = 1
Register # 9, Bits 1&0 = 2
Register # 9, Bits 1&0 = 3

36

Floating point totalizer preset hi bytes.

R W

Upper 2 bytes of totalizer preset
number in IEEE floating point format.

37

Floating point totalizer preset low

R W

bytes. Lower 2 bytes of totalizer
preset number in IEEE floating point
format.

38

Integer totalizer preset count. Permits

R W

transfer of totalizer preset number in
integer format.

IEEE Single
precision floating
point value

Same as above

Same as above

Same as above

Same as Reg #33 Same as Reg #33

0 to 65535
0 to 65535
0 to 65535
0 to 65535

Same as Reg #33 Same as Reg #33

Same as Reg #33 Same as Reg #33

Same as Reg #35 Same as Reg #35

0000000 to

9999999

000000.0 to

999999.9

00000.00 to

99999.99

0000.000 to

9999.999

0 to 65535
0 to 6553.5
0 to 655.35
0 to 65.535

42

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Ramp/Soak Profile and Totalizer Data (registers) Cont’d

Reg.

#

39

Floating point totalizer predetermined

R W

count hi bytes. Upper 2 bytes of
totalizer predetermined count in IEEE
floating point format.

40

Floating point totalizer predetermined

R W

count low bytes. Lower 2 bytes of
predetermined count in IEEE floating
point format

41

Integer totalizer predetermined count.

R W

Permits transfer of totalizer
predetermined count in integer format.

42

Totalizer scale decimal point. Sets the

R _

decimal point position in the totalizer
scale factor (Reg. # 43).

43

Totalizer scale factor. Permits

R W

fractional scaling of an input signal.

Description Register Value

Register No. 42 =0
Register No. 42 =1
Register No. 42 =2
Register No. 42 =3

Displayed Value

Same as Reg #33 Same as Reg #33

Same as Reg #33 Same as Reg #33

Same as Reg #35 Same as Reg #35

0
1
2
3

1 to 30000
1 to 30000
1 to 30000
1 to 30000

0.001 to 30.000

IB-23C650M

2050R

0

0.0

0.00

0.000

1 to 30000

0.1 to 3000.0

0.01 to 300.00

43

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Tuning Parameter Data (registers)

Reg.

#

50

Autotune output step size

R W

51

Autotune hysteresis value

R W

52

Autotune process variable maximum

R W

(high trip point)

Description Register Value

Register No. 9 = 0
Register No. 9 = 1
Register No. 9 = 2
Register No. 9 = 3

Register #9, bits 1 & 0 = 0

-29970 or Reg. #53
value +30 to

300000.

Displayed Value

1 TO 500 0.1 to 50.0

1 to 30000
1 to 30000
1 to 30000
1 to 30000

-2997 or Low Trip
Point +3 to 30000.

2050R

0.1 to 3000.0

0.01 to 300.00

0.001 to 30.000

0.001 to 30.000

Register #9, bits 1 & 0 = 1

Register #9, bits 1 & 0 = 2

Register #9, bits 1 & 0 = 3

53

Autotune process variable minimum

R W

(low trip point)

Register #9, bits 1 & 0 = 0

Register #9, bits 1 & 0 = 1

Register #9, bits 1 & 0 = 2

Register #9, bits 1 & 0 = 3

54R_Autotune error number 0

Same as above

Same as above

Same as above

-30000 to 299970 or
Reg. #52 value - 30

Same as above

Same as above

Same as above

-299.7 or Low Trip
Point +0.3 to

3000.0

-29.97 or Low Trip
Point +0.03 to

300.00

-2.997 or Low Trip
Point +0.003 to

30.000

-3000 to 29997 or
High Trip Point - 3.

-300.0 to 2999.7 or
High Trip Point

- 0.3.

-30.00 to 299.97 or
High Trip Point

- 0.03.

-3.000 to 29.997 or
High Trip Point

- 0.003.

2
3
5
6

No error
Increase step
Process slow
Decrease step
Response limited

44

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Tuning Parameter Data (registers) Cont’d

Reg.

#

55

Gain or heat gain value 1 to 30000 0.1 to 3000.0

R W

56

Reset or heat reset 10 to 12000 0.01 to 120.00

R W

57

Preact value 0 to 30000 0.0 to 3000.0

R W

58

Manual reset value 0 to 1000 0.0 to 100.0%

R W

59

Remote set-point ratio or AMRB ratio -30000 to 30000 -300.00to 300.00

R W

60

Remote set-point bias or AMRB bias

R W

61

Time proportioning cycle time or heat

R W

cycle time

62

On/off differential gap

R W

63

Heat/cool output crossover 1 to 3000 0.1 to 300.0%

R W

64

Crossover output off hysteresis 0 to 250 0.0 to 25.0 in %

R W

65

Cool gain value 1 to 30000 0.1 to 3000.0

R W

66

Cool reset value 10 to 1200 0.1 to 120.0

R W

67

Cool cycle time value 10 to 3000 1.0 to 300.0 sec.

R W

68

Position proportioning deadband value 0 to 500 0.0 to 50.0%

R W

69

Position proportioning preact value 0 to 500 0.0 to 50.0%

R W

Description Register Value

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

repeats/minute

seconds derivative
response

-30000 to 300000

-30000 to 300000

-30000 to 300000

-30000 to 300000
10 to 3000 1.0 to 300.0 sec.

0 to 1000
0 to 1000
0 to 1000
0 to 1000

output centered on

IB-23C650M

2050R

Displayed Value

-3000 to 30000

-300.0 to 3000.0

-30.00 to 300.00

-3.000 to 30.000

0 to 100

0.0 to 10.0

0.00 to 1.00

0.000 to 0.100

crossover value

(±25%)

repeats/minute

45

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Alarm Data (registers)

Reg.

#

70

Alarm 1 trip point

R W

• Process High or Low

Description Register Value

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

-2995 to 30000

-2995 to 30000

-2995 to 30000

-2995 to 30000

Displayed Value

-299.5 to 3000.0

-29.95 to 300.00

-2.995 to 30.000

2050R

-2995 to 30000

• Deviation High or Low

• Output High or Low

• Input 2 High or low

71

Alarm 2 trip point Same as Reg. # 70 Same as Reg. #70

R W

72

Alarm 3 trip point Same as Reg. # 70 Same as Reg. #70

R W

73

Alarm 4 trip point Same as Reg. # 70 Same as Reg. #70

R W

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

1 to 30000
1 to 30000
1 to 30000
1 to 30000

0 to 1000

Same as Process
high or low

0.01 to 300.00

0.001 to 30.000

Same as Process
high or low

1 to 30000

0.1 to 3000.0

0.0 to 100.0

46

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Computer Activity Data (registers)

Reg.

#

74

Computer active: timeout value 1 to 16383 1 to 16383 sec.

R W

75

Automatic control mode status display

R W

mnemonic with computer active.
Default display is CMP. Each
character is configurable; this register
defines the first character (C in the
default CMP).

76

Same as display described in Reg.

R W

#75. This register defines the second
and third characters (M and P in the
default CMP).

77

Computer active: control mode value

R W

Default is 1.

78

Local Set-point status display

R W

mnemonic with computer active.
Default display is LOC. Each
character is configurable; this register
defines the first character (L in the
default LOC)

79

Same as display described in Reg.

R W

#78. This register defines the second
and third characters (O and C in the
default LOC).

Description Register Value

ASCII code for first
character in status
display

ASCII code for
second and third
characters in status
display

0 to 255 0 to 255

Same as Reg. #75 Letter L (default) or

.

Same as Reg. #76

Letter C (default) or
letters A-Z,
numbers 0-9 plus
other special
characters per
configuration. See
RS-485 Setup
Menu.

Letters M and P
(default) or letters
A-Z, numbers 0-9
plus other special
characters per
configuration. See
RS-485 Setup
Menu.

letters A-Z,
numbers 0-9 plus
other special
characters per
configuration. See
RS-485 Setup Menu

Letters O and C
(default) or letters
A-Z, numbers 0-9
plus other special
characters per
configuration. See
RS-485 Setup
Menu

IB-23C650M

2050R

Displayed Value

.

Note: The "computer active" references in this section mean "when the

computer activity timer is enabled".

47

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Computer Activity Data (registers) Cont’d

Reg.

#

80

Computer active: set-point mode value 0 to 255 0 to 255

R W

81

Computer fail: control mode 0

R W

82

Computer fail: output value 0 to 1000 0.0 to 100.0%

R W

83

Computer fail: output 2 value 0 to 1000 0.0 to 100.0%

R W

84

Computer fail: relay A 0

R W

85

Computer fail, relay B Same as Reg. #84 Same as Reg. #84

R W

86

Computer fail: relay C Same as Reg. #84 Same as Reg. #84

R W

87

Computer fail: set-point mode 0

R W

88

Computer fail: set-point value

R W

Description Register Value

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

Displayed Value

1
2

1
2

1
2
3
4
5

-3000 to 30000

-300.0 to 3000.0

-30.00 to 300.00

-3.000 to 30.000

2050R

Last

Manual

Auto

Last

Off
On

Last

LOC

LO2
LO3
LO4

REM

48

See register #113 through #131 for

more computer activity data

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Ramp/Soak Profile Configuration Data (registers)

Reg.

#

89

Ramp/soak soak hysteresis

R W

90

Ramp/soak ramp hysteresis Same as Reg. #89 Same as Reg. #89

R W

91

Ramp/soak number of segments 0 to 10 0 to 10

R W

92

Ramp/soak segment 1 starting set-

R W

point

93

Ramp/soak segment 1 ending set-

R W

point

94

Ramp/soak segment 1 ramp-rate

R W

- OR ­Ramp/soak segment 1 soak-time

Description Register Value

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

Register #9, bits 1 & 0 = 0
Register #9, bits 1 & 0 = 1
Register #9, bits 1 & 0 = 2
Register #9, bits 1 & 0 = 3

Displayed Value

1 to 30000
1 to 30000
1 to 30000
1 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

-3000 to 30000

1 to 30000
1 to 30000
1 to 30000
1 to 30000

0 to 30000

IB-23C650M

2050R

1 to 30000

0.1 to 3000.0

0.01 to 300.00

0.001 to 30.000

-3000 to 30000

-300.0 to 3000.0

-30.00 to 300.00

-3.000 to 30.000

-3000 to 30000

-300.0 to 3000.0

-30.00 to 300.00

-3.000 to 30.000

1 to 30000

0.1 to 3000.0

0.01 to 300.00

0.001 to 30.000

0.0 to 3000.0

95

Ramp/soak segment 2 ending set-

R W

point

96

Ramp/soak segment 2 ramp-rate or

R W

soak-time

97

Ramp/soak segment 3 ending set-

R W

point

98

Ramp/soak segment 3 ramp-rate or

R W

soak-time

Units are hours or
minutes as defined
in Time Units.

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

49

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Ramp/Soak Profile Configuration Data (registers) Cont’d

Reg.

#

99

Ramp/soak segment 4 ending set-

R W

point

100

Ramp/soak segment 4 ramp-rate or

R W

soak-time

101

Ramp/soak segment 5 ending set-

R W

point

102

Ramp/soak segment 5 ramp-rate or

R W

soak-time

103

Ramp/soak segment 6 ending set-

R W

point

104

Ramp/soak segment 6 ramp-rate or

R W

soak-time

105

Ramp/soak segment 7 ending set-

R W

point

106

Ramp/soak segment 7 ramp-rate or

R W

soak-time

107

Ramp/soak segment 8 ending set-

R W

point

108

Ramp/soak segment 8 ramp-rate or

R W

soak-time

109

Ramp/soak segment 9 ending set-

R W

point

110

Ramp/soak segment 9 ramp-rate or

R W

soak-time

111

Ramp/soak segment 10 ending set-

R W

point

112

Ramp/soak segment 10 ramp-rate or

R W

soak-time

Description

Register Value

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Same as Reg. #93 Same as Reg. #93

Same as Reg. #94 Same as Reg. #94

Displayed Value

2050R

50

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

More Computer Activity Data (registers)

Reg.

#

113

Manual control mode status display

R W

mnemonic with computer active.
Default display is MAN. Each
character is configurable; this register
defines the first character (M in the
default MAN).

114

Same as display described in Reg.

R W

#113. This register defines the
second and third characters (A and N
in the default MAN)

115

Local 2 set-point status display

R W

mnemonic with computer active.
Default display is LO2. Each
character is configurable; this register
defines the first character (L in the
default LO2).

116

Same as display described in Reg.

R W

#115. This register defines the
second and third characters (O and 2
in the default LO2).

117

Local 3 set-point status display

R W

mnemonic with computer active.
Default display is LO3. Each
character is configurable; this register
defines the first character (L in the
default LO3).

118

Same as display described in Reg.

R W

#117. This register defines the
second and third characters (O and 3
in the default LO3)

Description

.

Register Value

ASCII code for first
character in status
display

ASCII code for
second and third
characters in status
display

Same as Reg. #113 Letter L (default) or

Same as Reg. #114 Letter O & #2

Same as Reg. #113 Letter L (default) or

Same as Reg. #114 Letter O & #3

IB-23C650M

2050R

Displayed Value

Letter M (default) or
letters A-Z,
numbers 0-9 plus
other special
characters per
configuration. See
RS-485 Setup
Menu.

Letters A and N
(default) or letters
A-Z, numbers 0-9
plus other special
characters per
configuration. See
RS-485 Setup
Menu.

other configured
character. See Reg.
#113.

(default) or other
configured
characters. See
Reg. #114.

other configured
character. See Reg.
#113.

(default) or other
configured
characters. See
Reg. #114.

Note: The "computer active" references in this section mean "when the

computer activity timer is enabled".

51

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

More Computer Activity Data (registers) Cont’d

Reg.

#

119

Local 4 set-point status display

R W

mnemonic with computer active.
Default display is LO4. Each
character is configurable; this register
defines the first character (L in the
default LO4).

120

Same as display described in Reg.

R W

#119. This register defines the
second and third characters (O and 4
in the default LO4)

121

Remote set-point status display

R W

mnemonic with computer active.
Default display is REM. Each
character is configurable; this register
defines the first character (R in the
default REM

122

Same as display described in Reg.

R W

#121. This register defines the
second and third characters (E and M
in the default REM)

123

Maximum computer Remote/Local

R W

status value (see register #15).

124

Loop Tag Display message with

R W

computer active. Default message is
COMPUTER. This register defines
the first and second characters (C and
O in the default COMPUTER).

125

Same as display described in Reg.

R W

#124. This register defines the third
and fourth characters (M and P in the
default COMPUTER)

126

Same as display described in Reg.

R W

#124. This register defines the fifth
and sixth characters (U and T in the
default COMPUTER)

Description

).

Register Value

Same as Reg. #113 Letter L (default) or

Same as Reg. #114 Letter O & #4

Same as Reg. #113 Letter R (default) or

Same as Reg. #114 Letters E and M

As Configured Not applicable

ASCII code for
configured
characters

Same as Reg #124 Letters M and P

Same as Reg #124 Letters U and T

Displayed Value

other configured
character. See Reg.
#113.

(default) or other
configured
characters. See
Reg. #114.

other configured
character. See Reg.
#113.

(default) or other
configured
characters. See
Reg. #114.

Letters C and O
(default)or other
configured
characters. See
Reg. #114.

(default)or other
configured
characters. See
Reg. #114.

(default)or other
configured
characters. See
Reg. #114.

2050R

52

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

More Computer Activity Data (registers) Cont’d

Reg.

#

127

Same as display described in Reg.

R W

#124. This register defines the
seventh and eighth characters (E and
R in the default COMPUTER

128

Loop Tag Display. This is the normal

R W

tag as configured in the TUNE Menu
(see Table 12 in IB-23C650). This
register defines the first and second
characters of the tag name.

129

Same as display described in Reg.

R W

#128. This register defines the third
and fourth characters of the tag name.

130

Same as display described in Reg.

R W

#128. This register defines the fifth
and sixth characters of the tag name.

131

Same as display described in Reg.

R W

#128. This register defines the
seventh and eighth characters of the
tag name.

Description

Register Value

Same as Reg #124 Letters E and R

Same as Reg #124 First and second

Same as Reg #124 Third and fourth

Same as Reg #124 Fifth and sixth

Same as Reg #124 Seventh and eighth

IB-23C650M

2050R

Displayed Value

(default)or other
configured
characters. See
Reg. #114.

characters in tag
name

characters in tag
name

characters in tag
name

characters in tag
name

53

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - REGISTER DATA

Blank Page

54

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

CONTROLLER ATTRIBUTE LISTING - COIL DATA

The tables in this section provide a listing of the 2050R boolean (discrete)
attributes which are addressed as coils. The description column identifies
the TRUE state of each attribute. The binary values are:

• TRUE = 1

• FALSE = 0

The tables list the attributes in order by Modbus coil number. The letters
below each number indicate whether the attribute is readable and writeable,
read only or write only:

• R W Readable and Writeable

• R _ Read only

• _ W Write only ( Write only applies to command type
attributes. They can be read but the
value returned is always 0.)

Computer Activity Data (coils)

Coil.

#

7

Computer tag is displayed in Loop Tag

R W

Display (top) location when computer (host)
is active.

8

Remote /Local key and digital inputs

R W

change computer R/L status, not 2050R
set-point mode when computer is active.

9

Operator can manually change output when

R W

Coil #10 is TRUE, 2050R is in MANUAL
and computer A/M status is Auto.

10

Auto and manual keys change computer

R W

A/M status, not 2050R control mode when
computer is active.

11

Enable "computer fail" set-point value See

R W

12

Enable "computer fail" output 2 value See

R W

13

Enable "computer fail" output value See

R W

Description Reference Information

See

Table 1, Step

supplement.

Table 1, Step

this supplement

Table 1, Step

supplement.

Table 1, Step

this supplement.

11 in this

8.12.6.1 in

8.12.2 in this

8.12.1.1.1 in

55

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Computer Activity Data (coils) Cont’d

Coil.

#

14

Decouple field input 1 from process

R W

variable.

15

Decouple field input 2 from internal

R W

variable.

16

Computer active Write to start computer activity

R W

17

Computer writes enabled See Standard Communication

R W

Description Reference Information

timer; Read to see if timer is

running (see Table 1, Step 8.1).

With a Host in the Basic

Operation With A Host Device

Section of this supplement.

Digital Input and Output Data (coils)

Coil

#

18

Digital input 1 on This is the same as DI1 Enable/

R _

19

Digital input 2 on Same as Coil #18 for DI2.

R _

20

Relay output A on See

R W

21

Relay output B on Same as Coil #20

R W

22

Relay output C on Same as Coil #20

R W

23

Enable digital input 1 Same as Coil #18

R W

24

Enable digital input 2 Same as Coil #18

R W

Description Reference Information

Disable in the Display Menu.

See Enabling Digital Inputs in

the Operation Using Digital

Inputs Section of the IB-23C650

User’s guide

Table 5, Output Relays

Setup Menu

in the IB-23C650

User’s Guide.

56

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Ramp/Soak Data (coils)

25

Ramp/soak RUN See Ramp/Soak Operation in

R W

26

Ramp/soak RESET Same as Coil #25

_ W

27

Ramp/soak SKIP Same as Coil #25

_ W

the IB-23C650 User’s Guide.

Totalizer Data (coils)

IB-23C650M

Coil

#

28

Totalizer RUN See Totalizer Operation in the

R W

29

Totalizer RESET Same as Coil #28

_ W

Description Reference Information

IB-23C650 User’s guide.

Autotune Data (coils)

Coil

#

30

Autotune in progress - write to start, read

R W

for status

31

Autotune the derivative response - in

R W

addition to P & I

Description Reference Information

See

Table 13, Autotune

Procedure

User‘s Guide.

in the IB-23C650

Same as coil #30

Limit in Manual (coil)

Coil

#

32

Apply output limits in MANUAL. See

R W

Description Reference Information

Table 4, Milliamp Output

Setup Menu Step 8

IB-23C650 User‘s Guide.

in the

57

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Process Alarm Data (Coils)

41

Process alarm 1 active

R _

(Reg. # 9, PA1)

42

Process alarm 1 unacknowledged

R W

(Reg. # 6, PA1)

43

Process alarm 2 active

R _

(Reg. # 9, PA2)

44

Process alarm 2 unacknowledged

R W

(Reg. # 6, PA2)

45

Process alarm 3 active

R _

(Reg. # 9, PA3)

46

Process alarm 3 unacknowledged

R W

(Reg. # 6, PA3)

47

Process alarm 4 active

R _

(Reg. # 9, PA4)

48

Process alarm 4 unacknowledged

R W

(Reg. # 6, PA4)

See Control Keys in the Basic

Operation Section of the IB­23C650 User’s Guide.

Write to acknowledge process

alarm from computer.

Same as coil #41

Same as coil #42

Same as coil #41

Same as coil #42

Same as coil #41

Same as coil #42

58

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Diagnostic Data (coils)

Coil

#

49

Process fault diagnostic active

R _

(Reg. # 9, DIAG1)

50

Process fault diagnostic unacknowledged

R W

(Reg. # 6, DIAG1)

51

Input 2 fault diagnostic active

R _

(Reg. # 9, DIAG2)

52

Input 2 fault diagnostic unacknowledged

R W

(Reg. # 6, DIAG2)

53

Main calibration bad diagnostic active

R _

(Reg. # 9, DIAG3)

54

Main calibration bad diagnostic

R W

unacknowledged
(Reg. # 6, DIAG3)

55

Option calibration bad diagnostic active

R _

(Reg. # 9, DIAG4)

56

Option calibration bad diagnostic

R W

unacknowledged
(Reg. # 6, DIAG4)

57

Bad database checksum diagnostic active

R _

(Reg. # 9, DIAG5)

58

Bad database checksum diagnostic

R W

unacknowledged
(Reg. # 6, DIAG5)

59

Computer writes inhibited diagnostic active

R _

(Reg. # 9, DIAG6)

60

Computer writes inhibited diagnostic

R W

unacknowledged
(Reg. # 6, DIAG6)

61

Computer error diagnostic active

R _

(Reg. # 9, DIAG7)

62

Computer error diagnostic unacknowledged

R W

(Reg. # 6, DIAG7)

63

Instrument over configured diagnostic active

R _

(Reg. # 9, DIAG8)

64

Instrument over configured diagnostic

R W

unacknowledged
(Reg. # 6, DIAG8)

Description Reference Information

IB-23C650M

See Operational Failure

Messages in the Diagnostics
Section of the IB-23C650 User’s
Guide.

Write to acknowledge diagnostic
from computer.

Same as Coil #49

Same as Coil #50

Same as Coil #49

Same as Coil #50

Same as Coil #49

Same as Coil #50

Same as Coil #49

Same as Coil #50

See Diagnostic Messages in the

Basic Operation With A Host

Device Section of this

supplement.

Same as Coil #50

Same as Coil #59

Same as Coil #50

Same as Coil #59

Same as Coil #50

59

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Ramp/Soak Profile Data (coils)

73

Ramp soak repeat See

R W

74

Ramp soak time base in hours Same as Coil #73

R W

75

Ramp soak segment 1 relay A state on Same as Coil #73

R W

76

Ramp soak segment 1 relay B state on Same as Coil #73

R W

77

Ramp soak segment 1 relay C state on Same as Coil #73

R W

78

Ramp soak segment 1 guaranteed Ramp or

R W

Soak

79

Ramp soak segment 2 relay A state on Same as Coil #73

R W

80

Ramp soak segment 2 relay B state on Same as Coil #73

R W

81

Ramp soak segment 2 relay C state on Same as Coil #73

R W

82

Ramp soak segment 2 guaranteed Ramp or

R W

Soak

83

Ramp soak segment 3 relay A state on Same as Coil #73

R W

84

Ramp soak segment 3 relay B state on Same as Coil #73

R W

85

Ramp soak segment 3 relay C state on Same as Coil #73

R W

86

Ramp soak segment 3 guaranteed Ramp or

R W

Soak

87

Ramp soak segment 4 relay A state on Same as Coil #73

R W

88

Ramp soak segment 4 relay B state on Same as Coil #73

R W

89

Ramp soak segment 4 relay C state on Same as Coil #73

R W

90

Ramp soak segment 4 guaranteed Ramp or

R W

Soak

Table 9, Ramp/Soak Profile

Setup Menu

User‘s Guide.

Same as Coil #73

Same as Coil #73

Same as Coil #73

Same as Coil #73

in the IB-23C650

60

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Ramp/Soak Profile Data (coils) Cont’d

Coil.

#

91

Ramp soak segment 5 relay A state on See

R W

92

Ramp soak segment 5 relay B state on Same as coil # 91

R W

93

Ramp soak segment 5 relay C state on Same as coil # 91

R W

94

Ramp soak segment 5 guaranteed Ramp or

R W

Soak

95

Ramp soak segment 6 relay A state on Same as coil # 91

R W

96

Ramp soak segment 6 relay B state on Same as coil # 91

R W

97

Ramp soak segment 6 relay C state on Same as coil # 91

R W

98

Ramp soak segment 6 guaranteed Ramp or

R W

Soak

99

Ramp soak segment 7 relay A state on Same as coil # 91

R W

100

Ramp soak segment 7 relay B state on Same as coil # 91

R W

101

Ramp soak segment 7 relay C state on Same as coil # 91

R W

102

Ramp soak segment 7 guaranteed Ramp or

R W

Soak

103

Ramp soak segment 8 relay A state on Same as coil # 91

R W

104

Ramp soak segment 8 relay B state on Same as coil # 91

R W

105

Ramp soak segment 8 relay C state on Same as coil # 91

R W

106

Ramp soak segment 8 guaranteed Ramp or

R W

Soak

Description Reference Information

Table 9, Ramp/Soak Profile

Setup Menu

User‘s Guide.

Same as coil # 91

Same as coil # 91

Same as coil # 91

Same as coil # 91

IB-23C650M

in the IB-23C650

61

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Ramp/Soak Profile Data (coils) Cont’d

Reg.

#

106

Ramp soak segment 8 guaranteed Ramp or

R W

Soak

107

Ramp soak segment 9 relay A state on Same as Coil #106

R W

108

Ramp soak segment 9 relay B state on Same as Coil #106

R W

109

Ramp soak segment 9 relay C state on Same as Coil #106

R W

110

Ramp soak segment 9 guaranteed R or S Same as Coil #106

R W

111

Ramp soak segment 10 relay A state on Same as Coil #106

R W

112

Ramp soak segment 10 relay B state on Same as Coil #106

R W

113

Ramp soak segment 10 relay C state on Same as Coil #106

R W

114

Ramp soak segment 10 guaranteed Ramp

R W

or Soak

Description Reference Information

See

Table 9, Ramp/Soak Profile

Setup Menu

User‘s Guide.

Same as Coil #106

in the IB-23C650

62

IB-23C650M

CONTROLLER ATTRIBUTE LISTING - COIL DATA

RECORD OF DATABASE

DESCRIPTION

This section provides a table of the database fields for planning and recording
your configuration entries via the RS-485 configuration menu. This database
record provides a reference when entering the configuration and then a record
of your configuration. Make copies of these pages as needed.

Blank fill-in fields on this table represents configuration fields that require a
selection. Fields that are grayed-out either do not require a selection or are
entry points into other parts of the menu. Refer to Table 1 for more
information on the fields and valid entries.

NOTE: Database record tables for all other instrument setup menus are

provided in IB-23C650.

63

IB-23C650M

aaaaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaaaa

a

a

a

a

a

a

a

a

a

CONTROLLER ATTRIBUTE LISTING - COIL DATA

Data Base Record

Top

Display

RS-485 **MENU** COMPUTER SPMD VAL

Middle

Display

Bot. Disp.

Entry

aaaaaaaaaaaaa
aaaaaaaaaaaaa
aaaaaaaaaaaaa

Display

a
a
a

Top

Middle

Display

BUS ENABLE USE CMP ACT TAG
BUS ADDRESS COMPUTER ACT TAG

BAUD RATE CMP FAIL SETUP

PARITY SELECT CMP FAIL CTL MODE

STOP BITS CMP FAIL OUTPUT

ACCESS TYPE CMP FAIL OUT VAL

aaaaaaaaaaaaa

COMPUTER SETUP CMP FAIL OUTPUT 2

aaaaaaaaaaaaa
aaaaaaaaaaaaa

a
a
a

COMPUTER TIMEOUT CMP FAIL OUT2 VAL

CMP AUTO MNEMONIC CMP FAIL RELAY A

CMP MAN MNEMONIC CMP FAIL RELAY B

COMPUTER MODE VAL CMP FAIL RELAY C

CMP LOC MNEMONIC CMP FAIL SPT MODE

CMP LO2 MNEMONIC CMP FAIL SETPOINT
CMP LO3 MNEMONIC CMP FAIL SPT VALU
CMP LO4 MNEMONIC BUS ENABLE

CMP REM MNEMONIC

Bot. Disp.

Entry

aaaaaaaaaaaaa
aaaaaaaaaaaaa
aaaaaaaaaaaaa
aaaaaaaaaaaaa

a
a
a
a

64

t

n

The Company’s policy is one of continuous product improvement and the righ
is reserved to modify the information contained herein without notice, or to
make engineering refinements that may not be reflected in this bulletin.
Micromod Automation assumes no responsibility for errors that may appear i
this manual.
© 2004 MicroMod Automation, Inc. Printed in USA

IB-23C650M, Issue 2 9/2004

MicroMod Automation, Inc.

75 Town Centre Drive

Rochester, NY USA 14623

Tel. [phone]
Fax [phone]

www.micromodautomation.com