ProSoft Technology MVI56-DFCMR User Manual

MVI56-DFCMR

ControlLogix Platform

DF1 Interface Module with Reduced Data
Block

10/20/2008

USER MANUAL

Please Read This Notice

Successful application of this module requires a reasonable working knowledge of the Rockwell Automation
ControlLogix hardware, the MVI56-DFCMR Module and the application in which the combination is to be used. For
this reason, it is important that those responsible for implementation satisfy themselves that the combination will meet
the needs of the application without exposing personnel or equipment to unsafe or inappropriate working conditions.

This manual is provided to assist the user. Every attempt has been made to ensure that the information provided is
accurate and a true reflection of the product's installation requirements. In order to ensure a complete understanding
of the operation of the product, the user should read all applicable Rockwell Automation documentation on the
operation of the Rockwell Automation hardware.

Under no conditions will ProSoft Technology be responsible or liable for indirect or consequential damages resulting
from the use or application of the product.

Reproduction of the contents of this manual, in whole or in part, without written permission from ProSoft Technology
is prohibited.

Information in this manual is subject to change without notice and does not represent a commitment on the part of
ProSoft Technology Improvements and/or changes in this manual or the product may be made at any time. These
changes will be made periodically to correct technical inaccuracies or typographical errors.

Warnings

UL Warnings

A Warning - Explosion Hazard - Substitution of components may impair suitability for Class I, Division 2.
B Warning - Explosion Hazard - When in Hazardous Locations, turn off power before replacing or rewiring

modules.
Warning - Explosion Hazard - Do not disconnect equipment unless power has been switched off or the area is
known to be nonhazardous.

C Suitable for use in Class I, division 2 Groups A, B, C and D Hazardous Locations or Non-Hazardous Locations.

ATEX Warnings and Conditions of Safe Usage:

Power, Input, and Output (I/O) wiring must be in accordance with the authority having jurisdiction

A Warning - Explosion Hazard - When in hazardous locations, turn off power before replacing or wiring modules.
B Warning - Explosion Hazard - Do not disconnect equipment unless power has been switched off or the area is

known to be non-hazardous.

C These products are intended to be mounted in an IP54 enclosure. The devices shall provide external means to

prevent the rated voltage being exceeded by transient disturbances of more than 40%. This device must be
used only with ATEX certified backplanes.

D DO NOT OPEN WHEN ENERGIZED.

Electrical Ratings

 Backplane Current Load: 800 mA @ 5 V DC; 3mA @ 24V DC
 Operating Temperature: 0 to 60°C (32 to 140°F)
 Storage Temperature: -40 to 85°C (-40 to 185°F)
 Shock: 30g Operational; 50g non-operational; Vibration: 5 g from 10 to 150 Hz
 Relative Humidity 5% to 95% (non-condensing)
 All phase conductor sizes must be at least 1.3 mm(squared) and all earth ground conductors must be at least

4mm(squared).

Markings:

II 3 G 0C <=Ta<= 60C EEx nA IIC T4 DEMKO 07ATEX0710717X

Battery Life Advisory

All modules in the MVI series use a rechargeable Lithium Vanadium Pentoxide battery to backup the 512K SRAM
memory, real-time clock, and CMOS. The battery should last for the life of the module.
The module must be powered for approximately twenty hours before it becomes fully charged. After it is fully charged,
the battery provides backup power for the CMOS setup and configuration data, the real-time clock, and the 512K
SRAM memory for approximately 21 days.
Before you remove a module from its power source, ensure that the battery within the module is fully charged. A fully
charged battery will hold the BIOS settings (after being removed from its power source) for a limited number of days.
When the battery is fully discharged, the module will revert to the default BIOS settings.

Note: The battery is not user replaceable.

ProSoft® Product Documentation

In an effort to conserve paper, ProSoft Technology no longer includes printed manuals with our product shipments.
User Manuals, Datasheets, Sample Ladder Files, and Configuration Files are provided on the enclosed CD and are
available at no charge from our web site: http://www.prosoft-technology.com
Printed documentation is available for purchase. Contact ProSoft Technology for pricing and availability.
Asia Pacific: +603.7724.2080
Europe, Middle East, Africa: +33.5.34.36.87.20
Latin America: +1.281.298.9109
North America: +1.661.716.5100

Your Feedback Please

We always want you to feel that you made the right decision to use our products. If you have suggestions, comments,
compliments or complaints about the product, documentation or support, please write or call us.

ProSoft Technology
1675 Chester Avenue, Fourth Floor
Bakersfield, CA 93301
[phone]
[phone] (Fax)
http://www.prosoft-technology.com

Copyright © ProSoft Technology, Inc. 2000 - 2008. All Rights Reserved.

MVI56-DFCMR User Manual
10/20/2008

ProSoft Technology ®, ProLinx ®, inRAx ®, ProTalk® and RadioLinx ® are Registered Trademarks of ProSoft
Technology, Inc.

Contents MVI56-DFCMR ♦ ControlLogix Platform
DF1 Interface Module with Reduced Data Block

Contents

Please Read This Notice 2

Warnings ............................................................................................................................................. 2

Battery Life Advisory ...........................................................................................................................3

ProSoft® Product Documentation....................................................................................................... 3

Your Feedback Please........................................................................................................................ 3

Guide to the MVI56-DFCMR User Manual 7

1 Start Here 9

1.1 System Requirements ............................................................................................... 9

1.2 Package Contents ...................................................................................................10

1.3 Setting Jumpers ......................................................................................................11

1.4 Install the Module in the Rack .................................................................................12

1.5 Connect your PC to the Processor.......................................................................... 13

1.6 Open the Sample Ladder Logic ..............................................................................14

1.7 Download the Sample Program to the Processor................................................... 18

1.8 Connect your PC to the Module ..............................................................................19

2 Installing and Configuring the Module 21

2.1 Modifying the Configuration Data............................................................................ 25

2.2 Configuration Data ..................................................................................................27

3 Ladder Logic 37

3.1 Configuration Objects..............................................................................................37

3.2 Module Data Object (DFCMModuleDef) ................................................................. 41

3.3 Status Object (DFCMInStat)....................................................................................42

3.4 User Data Objects ...................................................................................................43

3.5 Slave Polling Control and Status............................................................................. 43

4 Diagnostics and Troubleshooting 45

4.1 Reading Status Data from the Module .................................................................... 45

4.2 LED Status Indicators..............................................................................................60

5 Reference 63

5.1 Product Specifications.............................................................................................63

5.2 Functional Overview................................................................................................65

5.3 Cable Connections ..................................................................................................79

5.4 MVI56-DFCMR Database Definition ....................................................................... 85

5.5 MVI56-DFCMR Status Data Definition....................................................................85

5.6 Error Codes .............................................................................................................87

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5.7 DF1 Command Set For ProSoft Technology Communication Modules................. 89

5.8 DF1 Command List Form ..................................................................................... 101

6 Support, Service & Warranty 103

6.1 How to Contact Us: Technical Support................................................................. 103

6.2 Return Material Authorization (RMA) Policies and Conditions............................. 104

6.3 LIMITED WARRANTY.......................................................................................... 106

Index 111

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Guide to the MVI56-DFCMR User Manual

Function Section to Read Details

Introduction

(Must Do)

Verify Communication,
Diagnostic and
Troubleshooting

Reference

Product Specifications

Functional Overview

Glossary

Support, Service, and
Warranty

Index

→

→

→

→

Start Here (page 9)

Verifying
Communication
(page 60)

Diagnostics and
Troubleshooting
(page 45)

Reference (page 63)

Functional Overview
(page 65)

Product
Specifications (page

63)

Support, Service
and Warranty (page

103)

This Section introduces the customer to the
module. Included are: package contents,
system requirements, hardware installation, and
basic configuration.

This section describes how to verify
communications with the network. Diagnostic
and Troubleshooting procedures.

These sections contain general references
associated with this product, Specifications, and
the Functional Overview.

This section contains Support, Service and
Warranty information.

Index of chapters.

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1 Start Here

In This Chapter

 System Requirements .............................................................................9

 Package Contents .................................................................................10

 Setting Jumpers ....................................................................................11

 Install the Module in the Rack ...............................................................12

 Connect your PC to the Processor ........................................................ 13

 Open the Sample Ladder Logic............................................................. 14

 Download the Sample Program to the Processor.................................. 18

 Connect your PC to the Module ............................................................19

Installing the MVI56-DFCMR module requires a reasonable working knowledge
of the Rockwell Automation hardware, the MVI56-DFCMR Module and the
application in which they will be used.

Caution: It is important that those responsible for implementati on can complete the
application without exposing personnel, or equipment, to unsafe or inappropriate working
conditions. Safety, quality and experience ar e key factors in a successful installation.

1.1 System Requirements

The MVI56-DFCMR module requires the following minimum hardware and
software components:

 Rockwell Automation ControlLogix™ processor, with compatible power

supply and one free slot in the rack, for the MVI56-DFCMR module. The
module requires 800mA of available power.

 Rockwell Automation RSLogix 5000 programming software version 2.51 or

higher.

 Rockwell Automation RSLinx communication software
 Pentium® II 450 MHz minimum. Pentium III 733 MHz (or better)

recommended

 Supported operating systems:

o Microsoft Windows XP Professional with Service Pack 1 or 2
o Microsoft Windows 2000 Professional with Service Pack 1, 2, or 3
o Microsoft Windows Server 2003

 128 Mbytes of RAM minimum, 256 Mbytes of RAM recommended
 100 Mbytes of free hard disk space (or more based on application

requirements)

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 256-color VGA graphics adapter, 800 x 600 minimum resolution (True Color

1024 × 768 recommended)

 CD-ROM drive
 ProSoft Configuration Builder, HyperTerminal or other terminal emulator

program.

Note: You can install the module in a local or remote rack. For remote rack installation, the modul e
requires EtherNet/IP or ControlNet communication with the processor.

1.2 Package Contents

The following components are included with your MVI56-DFCMR module, and
are all required for installation and configuration.

Important: Before beginning the installation, please verify that all of the following items are
present.

Qty. Part Name Part Number Part Description

1

1 Cable

3 Cable

2 Adapter 1454-9F

1

MVI56­DFCMR
Module

ProSoft
Solutions CD

MVI56-DFCMR DF1 Interface Module with Reduced Data Block

Cable #15, RS232
Null Modem

Cable #14, RJ45 to
DB9 Male Adapter
cable

For RS232 Connection to the CFG Port

For DB9 Connection to Module's Port

Two Adapters, DB9 Female to Screw Terminal. For
RS422 or RS485 Connections to Port 1 and 2 of the
Module

Contains sample programs, utilities and
documentation for the MVI56-DFCMR module.

If any of these components are missing, please contact ProSoft Technology
Support for replacement parts.

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1.3 Setting Jumpers

If you use an interface other than RS-232 (default), you must change the jumper
configuration to match the interface. There are three jumpers located at the
bottom of the module.

The following illustration shows the MVI56-DFCMR jumper configuration:

1 Set the PRT 2 (for application port 1) and PRT 3 (for application port 2)

jumpers for RS232, RS422 or RS485 to match the wiring needed for your
application. The default jumper setting for both application ports is RS-232.

2 The Setup Jumper acts as "write protection" for the module's flash memory.

In "write protected" mode, the Setup pins are not connected, and the
module's firmware cannot be overwritten. Do not jumper the Setup pins
together unless you are directed to do so by ProSoft Technical Support.

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1.4 Install the Module in the Rack

If you have not already installed and configured your ControlLogix processor and
power supply, please do so before installing the MVI56-DFCMR module. Refer to
your Rockwell Automation product documentation for installation instructions.

Warning: You must follow all safety instructions when installing this or any other electronic
devices. Failure to follow safety procedures could result in damage to hardware or data, or even
serious injury or death to personnel. Refer to the documentation for each device you plan to
connect to verify that suitable safety procedures ar e in place before installing or servicing the
device.

After you have checked the placement of the jumpers, insert MVI56-DFCMR into
the ControlLogix chassis. Use the same technique recommended by Rockwell
Automation to remove and install ControlLogix modules.

Warning: When you insert or remove the module while backplane power is on, an electrical arc
can occur. This could cause an explosion in hazardous location installations. Verify that power is
removed or the area is non-hazardous before proceeding. Repeated electrical arcing causes
excessive wear to contacts on both the module and its mating connector. Worn contacts may
create electrical resistance that can affect module operation.

1 Turn power OFF.
2 Align the module with the top and bottom guides, and slide it into the rack

until the module is firmly against the backplane connector.

3 With a firm but steady push, snap the module into place.

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4 Check that the holding clips on the top and bottom of the module are securely

in the locking holes of the rack.

5 Make a note of the slot location. You will need to identify the slot in which the

module is installed in order for the sample program to work correctly. Slot
numbers are identified on the green circuit board (backplane) of the
ControlLogix rack.

6 Turn power ON.

Note: If you insert the module improperly, the system may stop working, or may behave
unpredictably.
Note: If you are installing MVI56-DFCMR with other modul es connected to the PCI bus, the
peripheral modules will not have holding clips. Make sure all of the modules are ali gned with their
respective slots before you snap them into place.

1.5 Connect your PC to the Processor

1 Connect the right-angle connector end of the cable to your controller at the

communications port.

2 Connect the straight connector end of the cable to the serial port on your

computer.

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1.6 Open the Sample Ladder Logic

The sample program for your MVI56-DFCMR module includes custom tags, data
types and ladder logic for data I/O and status monitoring. For most applications,
you can run the sample ladder program without modification, or, for advanced
applications, you can incorporate the sample program into your existing
application.

The inRAx Solutions CD provides one or more versions of the sample ladder
logic. The version number appended to the file name corresponds with the
firmware version number of your ControlLogix processor. The firmware version
and sample program version must match.

1.6.1 To Determine the Firmware Version of your Processor

Important: The RSLinx service must be installed and running on your computer in order for
RSLogix to communicate with the processor. Refer to your RSLinx and RSLogix documentation for
help configuring and troubleshooting these applications.

1 Connect an RS-232 serial cable from the COM (serial) port on your PC to the

communication port on the front of the processor.

2 Start RSLogix 5000 and close any existing project that may be loaded.
3 Open the Communications menu and choose Go Online. RSLogix will

establish communication with the processor. This may take a few moments.

4 When RSLogix has established communication with the processor, the

Connected To Go Online dialog box will open.

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5 On the Connected To Go Online dialog box, click the General tab. This tab

shows information about the processor, including the Revision (firmware)
version. In the following illustration, the firmware version is 11.32

1.6.2 Select the Slot Number for the Module

The sample application is for a module installed in Slot 1 in a ControlLogix rack.
The ladder logic uses the slot number to identify the module. If you are installing
the module in a different slot, you must update the ladder logic so that program
tags and variables are correct, and do not conflict with other modules in the rack.

To change the slot number

1 In the Controller Organization list, select the module [1] 1756-MODULE

MVI56, and then click the right mouse button to open a shortcut menu.

2 On the shortcut menu, choose Properties. This action opens the Module

Properties dialog box.

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3 In the Slot: field, use the spinners on the right side of the field to select the

slot number where the module will reside in the rack, and then click OK.

RSLogix will automatically apply the slot number change to all tags, variables
and ladder logic rungs that use the MVI56-DFCMR slot number for computation.

1.6.3 Configuring RSLinx

If RSLogix is unable to establish communication with the processor, follow these steps:

1 Open RSLinx.
2 Open the Communications menu, and choose Configure Drivers.

This action opens the Configure Drivers dialog box.

Note: If the list of configured drivers is blank, you must first choose and configure a driver from the
Available Driver Types list. The recommended driv er type to choose for serial communicatio n with
the processor is "RS-232 DF1 Devices".

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3 Click to select the driver, and then click Configure. This action opens the

Configure Allen-Bradley DF1 Communications Device dialog box.

4 Click the Auto-Configure button. RSLinx will attempt to configure your serial

port to work with the selected driver.

5 When you see the message "Auto Configuration Successful", click the OK

button to dismiss the dialog box.

Note: If the auto-configuration procedure fails, verify that the cables are connected correc tly
between the processor and the serial port on your computer, and then try again. If you ar e still
unable to auto-configure the port, refer to yo ur RSLinx documentation for further troubleshooti ng
steps.

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1.7 Download the Sample Program to the Processor

Note: The key switch on the front of the ControlLogix module must be in the REM position.

To download the sample program from RSLogix 5000 to the ControlLogix processor

1 If you are not already online to the processor, open the Communications

menu, and then choose Download. RSLogix will establish communication
with the processor.

2 When communication is established, RSLogix will open a confirmation dialog

box. Click the Download button to transfer the sample program to the
processor.

3 RSLogix will compile the program and transfer it to the processor. This

process may take a few minutes.

4 When the download is complete, RSLogix will open another confirmation

dialog box. Click OK to switch the processor from Program mode to Run
mode.

Note: If you receive an error message during these steps, refer to your RSLogix documentation to
interpret and correct the error.

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1.8 Connect your PC to the Module

With the module securely mounted, connect your PC to the

Configuration/Debug port using an RJ45-DB-9 Serial Adapter Cable and a Null

Modem Cable.

1 Attach both cables as shown.
2 Insert the RJ45 cable connector into the Configuration/Debug port of the

module.

3 Attach the other end to the serial port on your PC or laptop.

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Installing and Configuring the Module MVI56-DFCMR ♦ ControlLogix Platform
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2 Installing and Configuring the Module

In This Chapter

 Modifying the Configuration Data ..........................................................25

 Configuration Data ................................................................................27

This chapter describes how to install and configure the module to work with your
application. The configuration process consists of the following steps.

1 Use RSLogix 5000 to identify the module to the processor and add the

module to a project.

Note: The RSLogix 5000 software must be in "offline" mode to a dd the module to a project.

2 Modify the example ladder logic to meet the needs of your application, and

copy the ladder logic to the processor. Example ladder logic files are provided
on the CD-ROM.

Note: If you are installing this module in an existin g application, you can copy the necessary
elements from the example ladder logic into your application.

The rest of this chapter describes these steps in more detail.

First, define the module to the system. Right-click the mouse button on the I/O
Configuration option in the Controller Organization window to display a pop-up

menu. Select the New Module option from the I/O Configuration menu.

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This action opens the following dialog box.

Select the 1756-Module (Generic 1756 Module) from the list and click the OK

button. The following dialog box appears:

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Fill in the dialog box as shown adjusting the Name, Description and Slot options

for your application. You must select the Comm Format as Data - INT in the
dialog box. Failure to set the Assembly Instance and Size values correctly will

result in a module that will not communicate over the backplane of the

ControlLogix rack. Click the OK button to display the next dialog box.

Select the Request Packet Interval value for scanning the I/O on the module.
This value represents the minimum frequency that the module will handle
scheduled events. This value should not be set to less than 1 millisecond. Values
between 1 and 10 milliseconds should work with most applications.

After completing the module setup, the Controller Organization window displays
the module's presence. The data required for the module will be defined to the
application, and objects will be allocated in the Controller Tags data area.

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Next, define the User Defined Data Types to be used with the module. Copy
these data types from the example ladder logic if you are not using the example.
They will be defined if you are starting from the example ladder logic. The
Controller Organization window should display the User Defined Data Types
shown in the following example:

Next, define the data tag to be used to interface with the module and the ladder
logic. Open the Controller Tags Edit Tags dialog box and enter the values shown
in the following example. The MVI56-DFCMR module is defined in the example
as DFCM1. You can set the tag name to any valid tag name you desire. If you
are using the example ladder logic, this step has already been performed.

At this point, take the time to fill in the configuration values in the DFCM1 data
table and adjust array sizes. Refer to the Module Data Object section of this
document for information on configuring the module.

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The last step in the module setup is to add the ladder logic. If the example ladder
logic is used, adjust the ladder to fit the application. When the ladder example is
not used, copy the ladder logic shown in the Controller Organization window
below to the application.

The module is now set up and ready to be used with your application. Insert the
module in the rack and attach the DF1 serial communication cables. Download
the new application to the controller and places the processor in run mode. If all
the configuration parameters are set correctly and the module is attached to a
DF1 network, the module's Application LED should remain on and the backplane
activity LED (BP ACT) should blink very rapidly. Refer to the Diagnostics and
Troubleshooting section if you encounter errors.

Attach a computer or terminal to Port 1 on the module and look at the status of
the module using the Configuration/Debug Menu in the module.

2.1 Modifying the Configuration Data

In order for the MVI56-DFCMR module to function, a minimum amount of
configuration data must be transferred to the module. The following table
provides an overview of the different types of configuration data that the module
will require, depending on the operating modes to be supported.

Block
Range

9000 Data Transfer

9001 Master and Slave Port 1 Configuration

Functional
Modes Affected

Name Description

Backplane
Configuration

This section of the configuration data
contains the module configuration data
that defines the data transfer between
the module and the ControlLogix
processor.

This section defines the characteristics
of the DF1 serial communication port 1
on the module. These parameters must
be set correctly for proper module
operation.

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Block
Range

9002 Master and Slave Port 2 Configuration

6000 to
6033

6100 to
6133

7000 to
7004

7100 to
7104

Functional
Modes Affected

Master Port 1 Command List

Master Port 2 Command List

Master and Slave

Master and Slave

Name Description

Port 1 Override File
Map

Port 2 Override File
Map

This section defines the characteristics
of the DF1 serial communication port 2
on the module. These parameters must
be set correctly for proper module
operation.

If the module's Master Mode functionality
is to be supported on a port, the Master
Command List must be set up.

If the module's Master Mode functionality
is to be supported on a port, the Master
Command List must be set up.

Overrides default file maps. Used when
the module is a DF1 slave device.

Overrides default file maps

Refer to the Modifying the Module Configuration section for a description of the

configuration of the module. The MVI56-DFCMR module must be configured at
least once when the card is first powered, and any time thereafter when the
parameters must be changed.

2.1.1 Changing Parameters During Operation

A copy of the module's configuration data is mapped in the module's database as
displayed in the table above. These values are initialized when the module first
receives its configuration from the ControlLogix processor. Any node on the
network can change this data. A master port on the module may poll a slave for
the data or a slave port could receive the data from a remote master unit. The
module will not use this data until it is commanded. Ladder logic can be written to
issue a Write Configuration command block (9997) to the module. A remote
device can set a value of 9997 at address 7800 (N46:0) in the module to
download the configuration to the processor. Alternatively, the
configuration/debug port on the module can be used to issue the command
directly to the module. All three of these methods will force the module to
download the configuration to the ControlLogix processor. Ladder logic must
exist in the processor to accept the blocks sent by the module. If everything is
configured correctly, the module can receive its configuration from a remote
device.

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2.2 Configuration Data

This section contains listings of the MVI56-DFCMR module's database that are
related to the module's configuration. This data is available to any node on the
network and is read from the ControlLogix processor when the module first
initializes. Additionally, this section contains the miscellaneous status data and
command control database layout.

2.2.1 Backplane Setup

Register Content Description

5000 Write Start Reg Not used in this version of the software

5001 Write Reg Count Not used in this version of the software

5002 Read Start Reg Not used in this version of the software

5003 Read Reg Count Not used in this version of the software

5004 Backplane Fail

5005 Error Status Pointer

5006 to 5009 Spare

This parameter specifies the number of successive
transfer errors that must occur before the
communication ports are shut down. If the parameter
is set to 0, the communication ports will continue to
operate under all conditions. If the value is set larger
than 0 (1 to 65535), communications will cease if the
specified number of failures occur.

This parameter specifies the register location in the
module's database where module status data will be
stored. If a value less than 0 is entered, the data will
not be stored in the database. If the value specified is
in the range of 0 to 4940, the data will be placed in
the user data area.

2.2.2 Port 1 Setup

Register Content Description

5010 Enable

5011 Type

5012 Local Station ID

5013 Protocol 0=full duplex, 1=half-duplex

5014 Termination Type

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This parameter is used to define if this port will be
utilized. If the parameter is set to 0, the port is
disabled. A value of 1 will enable the port.

This parameter defines if the port will emulate a
master or slave device. Enter 0 to emulate a master
device and 1 to emulate a slave device.

This parameter specifies the local station ID for all
DF1 messages sent from this master port. A value of
255 is not permitted as this is the broadcast address.
Enter a value in the range of 0 to 254.

This parameter specifies the error checking for all
DF1 messages. 0=BCC, 1=CRC

MVI56-DFCMR ♦ ControlLogix Platform Installing and Configuring the Module
DF1 Interface Module with Reduced Data Block

Register Content Description

5015 Baud Rate

5016 Parity

5017 Data Bits

5018 Stop Bits

5019

5020 RTS On Delay

5021 RTS Off Delay

5022 Use CTS Line

Minimum Response
Delay

This is the baud rate to be used on the port. Enter the
baud rate as a value.

Baud Rate Parameter Value

110 110

150 150

300 300

600 600

1200 12 or 1200

2400 24 or 2400

4800 48 or 4800

9600 96 or 9600

14,400 14, 114 or 14400

19,200 19, 192 or 19200

28,800 28, 288 or 28800

38,400 38, 384 or 38400

57,600 57 or 576

115,200 115 or 1152

This is the Parity code to be used for the port. The
coded values are as follows: 0=None, 1=Odd,
2=Even.

This parameter sets the number of data bits for each
word used by the protocol. Enter a value in the range
of 5 to 8.

This parameter sets the number of stop bits to be
used with each data value sent. Enter a value of 1 or

2.

This parameter sets the number of milliseconds to
wait before a response message is sent out of the
port. This parameter is required when interfacing to a
slow responding device. Enter a value in the range of
0 to 65535.

This parameter sets the number of milliseconds to
delay after RTS is asserted before the data will be
transmitted. Enter a value in the range of 0 to 65535.

This parameter sets the number of milliseconds to
delay after the last byte of data is sent before the
RTS modem signal will be set low. Enter a value in
the range of 0 to 65535.

This parameter specifies if the CTS modem control
line is to be used. If the parameter is set to 0, the
CTS line will not be monitored. If the parameter is set
to 1, the CTS line will be monitored and must be high
before the module will send data. Normally, this
parameter is required when half-duplex modems are
used for communication (2-wire).

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Installing and Configuring the Module MVI56-DFCMR ♦ ControlLogix Platform
DF1 Interface Module with Reduced Data Block

Register Content Description

5023 ENQ Delay

5024 Command Count

5025

5026 Command Error Pointer

5027 Response Timeout

5028 Retry Count

5029 Error Delay Count

5030 Slave List Pointer

5031 Slave List Frequency Not used in this version of the software

5032 First File

5033 File Size

Minimum Command
Delay

This parameter specifies the number of milliseconds
to wait after a DLE-ACK is received from a slave
using half-duplex mode before the DLE-ENQ request
is made for data. Enter a value in the range of 0 to

65535.

This parameter specifies the number of commands to
be processed for the port. Enter a value of 0 to 100.

This parameter specifies the number of milliseconds
to wait between the initial issuance of a command.
This parameter can be used to delay all commands
sent to slaves to avoid "flooding" commands on the
network. This parameter does not affect retries of a
command as they will be issued when failure is
recognized. Enter a value in the range of 0 to 65535.

This parameter sets the address in the internal DF1
database where the command error data will be
placed. If the value is set to -1, the data will not be
transferred to the database. Enter a value of 0 to

4999.

This parameter represents the message response
timeout period in 1-ms increments. This is the time
that a port configured as a master will wait before re­transmitting a command if no response is received
from the addressed slave. The value is set depending
upon the communication network used and the
expected response time of the slowest device on the
network.

This parameter specifies the number of times a
command will be retried if it fails. Enter a value in the
range of 0 to 10.

This parameter specifies the number of polls to be
skipped on the slave before trying to re-establish
communications. After the slave fails to respond, the
master will skip commands to be sent to the slave the
number of times entered in this parameter. Enter a
value in the range of 0 to 65535.

This parameter specifies the starting address in the
virtual database where the 256 slave status values
will be written. If the parameter is set to -1, the slave
data will not be placed in the database. Enter a value
in the range of -1 to 4743.

This parameter is used when a request for a file is
received on the communication port. This field is
required when responding to PLC5 and SLC DF1
commands. Use this parameter to define the virtual
file(s) to be simulated on the module. This value is
fixed at 7 for N7.

This parameter is used to specify the size of each file
to be simulated on the module. All files simulated are
defined to have the same assigned size. This value is
fixed at 200.

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MVI56-DFCMR ♦ ControlLogix Platform Installing and Configuring the Module
DF1 Interface Module with Reduced Data Block

Register Content Description

5034 File Offset

This parameter sets the database register location of
the first element in the first file simulated in the
module. All offsets in the first file and subsequent
files will be computed using the address specified.
This value is fixed at 0. Therefore, the module
assumes N7:0 starts at the database offset of 0 and
each file is 200 words in size.

5035 Map Count Number of file map overrides.

5036 to 5039 Spare

2.2.3 Port 2 Setup

Register Content Description

5040 Enable

5041 Type

5042 Local Station ID

5043 Protocol 0=full duplex, 1=half-duplex

5044 Termination Type

5045 Baud Rate

5046 Parity

This parameter is used to define if this port will be
utilized. If the parameter is set to 0, the port is
disabled. A value of 1 will enable the port.

This parameter defines if the port will emulate a
master or slave device. Enter 0 to emulate a master
device and 1 to emulate a slave device.

This parameter specifies the local station ID for all
DF1 messages sent from this master port. A value of
255 is not permitted as this is the broadcast address.
Enter a value in the range of 0 to 254.

This parameter specifies the error checking for all
DF1 messages. 0=BCC, 1=CRC

This is the baud rate to be used on the port. Enter
the baud rate as a value.

Baud Rate Parameter Value

110 110

150 150

300 300

600 600

1200 12 or 1200

2400 24 or 2400

4800 48 or 4800

9600 96 or 9600

14,400 14, 114 or 14400

19,200 19, 192 or 19200

28,800 28, 288 or 28800

38,400 38, 384 or 38400

57,600 57 or 576

115,200 115 or 1152

This is the Parity code to be used for the port. The
coded values are as follows: 0=None, 1=Odd,
2=Even.

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