ProSoft Technology inRAx MVI56-CAS User Manual

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MVI56-CAS

ControlLogix Platform

Teledyne CA Slave Module

User Manual

December 26, 2007

Please Read This Notice

Successful application of this module requires a reasonable working knowledge of the Rockwell Automation ControlLogix hardware, the MVI56-CAS 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 B Warning - Explosion Hazard - When in Hazardous Locations, turn off

C Suitable for use in Class I, division 2 Groups A, B, C and D Hazardous

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 B Warning - Explosion Hazard - Do not disconnect equipment unless power C These products are intended to be mounted in an IP54 enclosure. The

D DO NOT OPEN WHEN ENERGIZED.

suitability for Class I, Division 2.

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.

Locations or Non-Hazardous Locations.

before replacing or wiring modules.

has been switched off or the area is known to be non-hazardous.

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.

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

 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

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 +1 (661) 716-5100 +1 (661) 716-5101 (Fax)

http://www.prosoft-technology.com

MVI56-CAS User Manual December 26, 2007 PSFT.CAS.MVI56.UM.07.12.26

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

Contents MVI56-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

Contents

PLEASE READ THIS NOTICE.............................................................................................................................. 2

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

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

GUIDE TO THE MVI56-CAS 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 Download the Sample Program to the Processor...................................................................................14

1.6.1 Configuring RSLinx .......................................................................................................................15

1.7 Connect your PC to the Module..............................................................................................................17

2 INSTALLING AND CONFIGURING THE MODULE....................................................................................19

2.1 Module Configuration..............................................................................................................................23

2.1.1 Power Up ......................................................................................................................................24

2.1.2 Changing Parameters During Operation .......................................................................................24

2.1.3 Module Data Object (CASModuleDef)...........................................................................................24

2.1.4 User Data Objects.........................................................................................................................27

2.1.5 TCA Message Data.......................................................................................................................28

3 LADDER LOGIC..........................................................................................................................................29

4 DIAGNOSTICS AND TROUBLESHOOTING..............................................................................................31

4.1 Reading Status Data From the Module...................................................................................................31

4.1.1 The Configuration/Debug Menu ....................................................................................................31

4.1.2 Required Hardware .......................................................................................................................32

4.1.3 Required Software.........................................................................................................................33

4.1.4 Using the Configuration/Debug Port..............................................................................................33

4.1.5 Main Menu ....................................................................................................................................34

4.1.6 Data Analyzer................................................................................................................................37

4.1.7 Data Analyzer Tips........................................................................................................................39

4.1.8 Database View Menu ....................................................................................................................42

4.2 LED Status Indicators.............................................................................................................................44

4.2.1 Clearing a Fault Condition.............................................................................................................45

4.2.2 Troubleshooting.............................................................................................................................45

5 REFERENCE...............................................................................................................................................47

5.1 Product Specifications ............................................................................................................................47

5.1.1 Features and Benefits ...................................................................................................................47

5.1.2 General Specifications ..................................................................................................................47

5.1.3 Hardware Specifications................................................................................................................48

5.1.4 Functional Specifications...............................................................................................................48

5.2 Functional Overview ...............................................................................................................................49

5.2.1 General Concepts .........................................................................................................................49

5.2.2 Normal Data Transfer....................................................................................................................52

5.2.3 Configuration Data Transfer ..........................................................................................................53

5.2.4 Write Configuration........................................................................................................................54

5.2.5 Pass-Through Control Blocks........................................................................................................55

5.2.6 Data Flow Between MVI56-CAS Module and ControlLogix Processor..........................................56

5.3 Cable Connections .................................................................................................................................57

5.3.1 RS-232 Configuration/Debug Port.................................................................................................57

5.3.2 RS-232 ..........................................................................................................................................59

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5.3.3 RS-422..........................................................................................................................................61

5.3.4 RS-485..........................................................................................................................................62

5.3.5 DB9 to RJ45 Adaptor (Cable 14)...................................................................................................62

5.4 MVI56-CAS Database Definition ............................................................................................................63

5.5 MVI56-CAS Status Data Definition.........................................................................................................63

5.6 MVI56-CAS Configuration Data Definition..............................................................................................65

5.6.1 Port 1 ............................................................................................................................................65

5.6.2 Port 2 ............................................................................................................................................67

5.6.3 Status............................................................................................................................................68

5.7 MVI56-CAS Command Control...............................................................................................................70

5.8 Protocol Commands ...............................................................................................................................70

5.8.1 Data Read Functions ....................................................................................................................70

5.8.2 Control Commands From Master..................................................................................................71

5.8.3 Freeze Data Commands ...............................................................................................................72

5.8.4 Exception Data Commands...........................................................................................................73

6 SUPPORT, SERVICE & WARRANTY.........................................................................................................75

6.1 How to Contact Us: Sales and Support ..................................................................................................76

6.2 Return Material Authorization (RMA) Policies and Conditions................................................................77

6.2.1 All Product Returns .......................................................................................................................77

6.3 Procedures for Return of Units Under Warranty.....................................................................................77

6.4 Procedures for Return of Units Out of Warranty.....................................................................................78

6.4.1 Un-repairable Units .......................................................................................................................78

6.4.2 Purchasing Warranty Extension....................................................................................................79

6.5 LIMITED WARRANTY............................................................................................................................79

6.5.1 What Is Covered By This Warranty...............................................................................................79

6.5.2 What Is Not Covered By This Warranty ........................................................................................80

6.5.3 DISCLAIMER REGARDING HIGH RISK ACTIVITIES..................................................................81

6.5.4 DISCLAIMER OF ALL OTHER WARRANTIES.............................................................................81

6.5.5 LIMITATION OF REMEDIES**......................................................................................................81

6.5.6 Time Limit for Bringing Suit ...........................................................................................................81

6.5.7 No Other Warranties .....................................................................................................................82

6.5.8 Intellectual Property ......................................................................................................................82

6.5.9 Additional Restrictions Relating To Software And Other Intellectual Property ..............................82

6.5.10 Allocation of risks ..........................................................................................................................83

6.5.11 Controlling Law and Severability...................................................................................................83

INDEX...................................................................................................................................................................85

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Start Here MVI56-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

Guide to the MVI56-CAS 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 31)

Diagnostics and Troubleshooting (page 31)

Reference

47) Functional

Overview (page 49) Product

Specifications (page 47)

Support, Service and Warranty (page 75)

(page

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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Start Here MVI56-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

1 Start Here

In This Chapter

¾ System Requirements.............................................................. 9

¾ Package Contents.................................................................. 10

¾ Setting Jumpers ..................................................................... 11

¾ Install the Module in the Rack ................................................ 12

¾ Connect your PC to the Processor......................................... 13

¾ Download the Sample Program to the Processor ..................14

¾ Connect your PC to the Module ............................................. 17

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

Caution: It is important that those responsible for implementation can complete

the application without exposing personnel, or equipment, to unsafe or inappropriate working conditions. Safety, quality and experience are key factors in a successful installation.

1.1 System Requirements

The MVI56-CAS 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-CAS 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

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 100 Mbytes of free hard disk space (or more based on application

requirements)

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

1024 × 768 recommended)

 CD-ROM drive  HyperTerminal or other terminal emulator program.

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

1.2 Package Contents

The following components are included with your MVI56-CAS 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 Cable

3 Cable

2 Adapter 1454-9F

MVI56-CAS Module

ProSoft Solutions CD

MVI56-CAS Teledyne CA Slave Module

RS232 Null Modem

Cable #14, RJ45 to DB9 Male Adapter

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-CAS 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-CAS 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-CAS 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 are in place before installing or servicing the device.

After you have checked the placement of the jumpers, insert MVI56-CAS 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.

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3 With a firm but steady push, snap the module into place. 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-CAS with other modules connected to the PCI bus, the peripheral modules will not have holding clips. Make sure all of the modules are aligned with their respective slots before you snap them into place.

1.5 Connect your PC to the Processor

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

communications port.

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

computer.

1.6 Download the Sample Program to the Processor

¾ To download the sample program from RSLogix 5000 to the

ControlLogix processor:

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

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.

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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.

1.6.1 Configuring RSLinx

¾ 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.

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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 driver type to choose for serial communication with the processor is "RS-232 DF1 Devices".

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 correctly between the processor and the serial port on your computer, and then try again. If you are still unable to auto-configure the port, refer to your RSLinx documentation for further troubleshooting steps.

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1.7 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-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

2 Installing and Configuring the Module

In This Chapter

¾ Module Configuration .............................................................23

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 add 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 existing 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. The first step in installing and configuring the module is to 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 OK. The following dialog box is displayed:

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Fill in the dialog boxes 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 Next 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 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 will display 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. An example of the Controller Organization window is shown below:

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The next step in the module's setup is to 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 below:

The next step in module setup is to define the data 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-CAS module is defined in the example as CAS1. 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 CAS1 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 you are using the example ladder logic, adjust the ladder to fit your application. If you are not using the ladder example, copy the ladder logic shown in the Controller Organization window below to your application.

The module is now set up and ready to be used with your application. Insert the module in the rack and attach the TCA serial communication cables. Download the new application to the controller and place the processor in run mode. If all the configuration parameters are set correctly and the module is attached to a TCA network, the module's Application LED (APP LED) should remain off and the backplane activity LED (BP ACT) should blink very rapidly. Refer to the Diagnostics and Troubleshooting section of this manual if you encounter errors. Attach a computer or terminal to Debug/Configuration port on the module and look at the status of the module using the Configuration/Debug Menu in the module.

2.1 Module Configuration

In order for the MVI56-CAS 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.

Module Register Address

5000 to 5009 Data Transfer General Module

5010 to 5039 and 5040 to 5069

Refer to the Installing and Configuring the Module section for a description of the configuration of the module. The MVI56-CAS module must be configured at least once when the card is first powered, and any time thereafter when the parameters must be changed.

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Functional Modes Affected

Master and Slave Port Configuration These sections define the characteristics of each of

Name Description

This section of the configuration data contains the

Configuration

module configuration data that defines the data transfer between the module and the ControlLogix processor.

the TCA serial communication ports on the module. These parameters must be set correctly for proper module operation.

MVI56-CAS ♦ ControlLogix Platform Installing and Configuring the Module Teledyne CA Slave Module

2.1.1 Power Up

On power up, the module enters into a logical loop waiting to receive configuration data from the processor. Upon receipt, the module will begin execution of the command list if it is present.

2.1.2 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. 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 6800 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.

2.1.3 Module Data Object (CASModuleDef)

All data related to the MVI56-CAS is stored in a user defined data type. An instance of the data type is required before the module can be used. This is done by declaring a variable of the data type in the Controller Tags Edit Tags dialog box. The structure of the object is displayed in the following figure.

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This object contains objects that define the configuration, user data, status and command control data related to the module. Each of these object types is discussed in the following topics of the document.

Configuration Objects

Configuration of the module is performed by filling in the values in the module object defined in the Controller Tags Edit Tags dialog. Each parameter required by the module has a defined location in the object. The tables and discussions below describe the parameters set in the dialog box. You can view these tables by opening the data type under the User Defined Data Type option in the Controller Organization window.

Data Transfer Parameters (CASModule)

This object defines the parameters for data movement between the module and the processor. Values entered determine the ladder logic and data size required in the application. The ReadData and WriteData arrays must be sized to or larger than the count values entered. The ladder logic must process the number of blocks of data to be transferred. The number of blocks is computed as follows:

BlockCnt = INT(RegCnt/200) + if(MOD(RegCnt,200), 1,0) If the register count is evenly divisible by 200, the number of blocks is easy to

compute and the ladder is much simpler to write. If the number is not evenly divisible by 200, special handling of the last block of data must developed, as it must transfer less than 200 words. It is recommended that the count values always be set to values evenly divisible by 200.

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The BPFail parameter determines if the module should continue communicating on the TCA network when the backplane transfer operation fails. A value of zero indicates that the module should continue communicating when the backplane is not operational. If the value is greater than zero, the backplane will be retried the entered number of times before a failure will be reported and communication will cease on the ports. When backplane communication is restored, the module will start communicating on the network. For example, if you enter a value of 10 for the parameter, the module will stop all TCA communications if 10 successive backplane errors are recognized. When a successful transfer is recognized, the module will resume communications on the network.

TCA Port Parameters (CASPort)

This object defines the parameters for the operation of each of the TCA ports on the module. Refer to the Reference chapter for the definition of each parameter.

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Status Object (CASInStat)

This object views the status of the module. The CASInStat object shown below is updated each time a read block is received by the processor. Use this data to monitor the state of the module at a "real-time rate".

Refer to the Reference chapter for a complete listing of the data stored in this object.

2.1.4 User Data Objects

These objects hold data to be transferred between the processor and the MVI56CAS module. The user data is the read and write data transferred between the processor and the module as "pages" of data up to 200 words long.

The read data (ReadData) is an array set to match the value entered in the ReadRegCnt parameter of the CASModule object. For ease of use, this array should be dimensioned as an even increment of 200 words. This data is paged up to 200 words at a time from the module to the processor. The ReadData task is responsible for placing the data received into the proper position in the read data array. Use this data for status and control in the ladder logic of the processor.

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The write data (WriteData) is an array set to match the value entered in the WriteRegCnt parameter of the CASModule object. For ease of use, this array should be dimensioned as even increments of 200 words. This data is paged up to 200 words at a time from the processor to the module. The WriteData task is responsible for placing the write data into the output image for transfer to the module. This data is passed from the processor to the module for status and control information for use in other nodes on the network

2.1.5 TCA Message Data

The module's program relies on the pass-through mode. Write messages sent to a slave port are passed directly through to the processor. It is the responsibility of the ladder logic to process the message received using this feature. Three data objects are required for this mode: a variable to hold the length of the message, a variable to hold the address, and a buffer to hold the message. This information is passed from the module to the processor using block identification codes of 9991, 9992, or 9994. Word two of this block contains the length of the message, word three contains the address and the message starts at word 5.

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Ladder Logic MVI56-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

3 Ladder Logic

Ladder logic is required for application of the MVI56-CAS module. Tasks that must be handled by the ladder logic are module data transfer, special block handling and status data receipt. Additionally, a power-up handler may be needed to handle the initialization of the module's data and to clear any processor fault conditions.

The sample ladder logic, on the ProSoft Solutions CD-ROM, is extensively commented, to provide information on the purpose and function of each rung. For most applications, the sample ladder will work without modification.

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Diagnostics and Troubleshooting MVI56-CAS ♦ ControlLogix Platform Teledyne CA Slave Module

4 Diagnostics and Troubleshooting

In This Chapter

¾ Reading Status Data From the Module.................................. 31

¾ LED Status Indicators ............................................................ 44

The module provides information on diagnostics and troubleshooting in the following forms:

 Status data values are transferred from the module to the processor.  Data contained in the module can be viewed through the

Configuration/Debug port attached to a terminal emulator.

 LED status indicators on the front of the module provide information on the

module's status.

4.1 Reading Status Data From the Module

The MVI56-CAS module returns a 35-word Status Data block that can be used to determine the module's operating status. This data is located in the module's database at registers 6000 to 6034 and at the location specified in the configuration. This data is transferred to the ControlLogix processor continuously with each read block. For a complete listing of the status data object, refer to the Module Set Up section.

4.1.1 The Configuration/Debug Menu

The Configuration and Debug menu for this module is arranged as a tree structure, with the Main Menu at the top of the tree, and one or more sub-menus for each menu command. The first menu you see when you connect to the module is the Main menu.

Because this is a text-based menu system, you enter commands by typing the command letter from your computer keyboard in the terminal application (for example, HyperTerminal). The module does not respond to mouse movements or clicks. The command executes as soon as you press the command letter — you do not need to press [Enter]. When you type a command letter, a new screen will be displayed in your terminal application.

Navigation

All of the sub-menus for this module contain commands to redisplay the menu or return to the previous menu. You can always return from a sub-menu to the next higher menu by pressing [M] on your keyboard.

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The organization of the menu structure is represented in simplified form in the following illustration:

The remainder of this section shows you the menus available for this module, and briefly discusses the commands available to you.

Keystrokes

The keyboard commands on these menus are almost always non-case sensitive. You can enter most commands in lower case or capital letters.

The menus use a few special characters ([?], [-], [+], [@]) that must be entered exactly as shown. Some of these characters will require you to use the [Shift], [Ctrl] or [Alt] keys to enter them correctly. For example, on US English keyboards, enter the [?] command as [Shift][/].

Also, take care to distinguish capital letter [I] from lower case letter [l] (L) and number [1]; likewise for capital letter [O] and number [0]. Although these characters look nearly the same on the screen, they perform different actions on the module.

4.1.2 Required Hardware

You can connect directly from your computer's serial port to the serial port on the module to view configuration information and perform maintenance.

ProSoft Technology recommends the following minimum hardware to connect your computer to the module:

 80486 based processor (Pentium preferred)  1 megabyte of memory  At least one serial communications port available  A null modem serial cable.

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4.1.3 Required Software

In order to send and receive data over the serial port (COM port) on your computer to the module, you must use a communication program (terminal emulator).

A simple communication program called HyperTerminal is pre-installed with recent versions of Microsoft Windows operating systems. If you are connecting from a machine running DOS, you must obtain and install a compatible communication program. The following table lists communication programs that have been tested by ProSoft Technology.

DOS ProComm, as well as several other terminal emulation programs Windows 3.1 Terminal Windows 95/98 HyperTerminal Windows NT/2000/XP HyperTerminal

4.1.4 Using the Configuration/Debug Port

To connect to the module's Configuration/Debug port:

1 Connect your computer to the module's port using a null modem cable. 2 Start the communication program on your computer and configure the

communication parameters with the following settings:

Baud Rate 57,600 Parity None Data Bits 8 Stop Bits 1 Software Handshaking None

3 Open the connection. When you are connected, press the [?] key on your

keyboard. If the system is set up properly, you will see a menu with the module name followed by a list of letters and the commands associated with them.

If there is no response from the module, follow these steps: 1 Verify that the null modem cable is connected properly between your

computer's serial port and the module. A regular serial cable will not work.

2 Verify that RSLinx is not controlling the COM port. Refer to Disabling the

RSLinx Driver for the Com Port on the PC (page 57).

3 Verify that your communication software is using the correct settings for baud

rate, parity and handshaking.

4 On computers with more than one serial port, verify that your communication

program is connected to the same port that is connected to the module.

If you are still not able to establish a connection, you can contact ProSoft Technology Technical Support for further assistance.

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4.1.5 Main Menu

When you first connect to the module from your computer, your terminal screen will be blank. To activate the main menu, press the [?] key on your computer's keyboard. If the module is connected properly, the following menu will appear on your terminal screen:

Caution: Some of the commands available to you from this menu are designed for advanced debugging and system testing only, and can cause the module to stop communicating with the processor or with other devices, resulting in potential data loss or other failures. Only use these commands if you are specifically directed to do so by ProSoft Technology Technical Support staff. Some of these command keys are not listed on the menu, but are active nevertheless. Please be careful when pressing keys so that you do not accidentally execute an unwanted command.

Opening the Data Analyzer Menu

Press [A] to open the Data Analyzer Menu. Use this command to view all bytes of data transferred on each port. Both the transmitted and received data bytes are displayed. Refer to Data Analyzer for more information about this menu.

Important: When in analyzer mode, program execution will slow down. Only use this tool during a troubleshooting session. Before disconnecting from the Config/Debug port, please press [S] to stop the data analyzer, and then press [M] to return to the main menu. This action will allow the module to resume its normal high speed operating mode.

Viewing Block Transfer Statistics

Press [B] from the Main Menu to view the Block Transfer Statistics screen. Use this command to display the configuration and statistics of the backplane

data transfer operations between the module and the processor. The information on this screen can help determine if there are communication problems between the processor and the module.

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Tip: To determine the number of blocks transferred each second, mark the numbers displayed at a specific time. Then some seconds later activate the command again. Subtract the previous numbers from the current numbers and divide by the quantity of seconds passed between the two readings.

Viewing Module Configuration

Press [C] to view the Module Configuration screen. Use this command to display the current configuration and statistics for the

module.

Opening the Database Menu

Press [D] to open the Database View menu. Use this menu command to view the current contents of the module's database.

Viewing Version Information

Press [V] to view Version information for the module. Use this command to view the current version of the software for the module, as

well as other important values. You may be asked to provide this information when calling for technical support on the product.

Values at the bottom of the display are important in determining module operation. The Program Scan Counter value is incremented each time a module's program cycle is complete.

Tip: Repeat this command at one-second intervals to determine the frequency of program execution.

Warm Booting the Module

Press [W] from the Main Menu to warm boot (restart) the module. This command will cause the program to exit and reload, refreshing configuration parameters that must be set on program initialization. Only use this command if you must force the module to re-boot.

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Transferring Module Configuration to the Processor

Press [Y] to transfer the module's configuration data to the processor. Ladder logic is required in the processor to receive and implement the updated configuration. You will be prompted to confirm the transfer.

If the operation is not successful, an error code will be returned.

Code Description

0 Transfer successful

-1 Error transferring module configuration data (block -9000)

-2 Error transferring device definition data (blocks -9100 to -9103)

-3 Error transferring master command list data (blocks -6000 to -6007)

After successful data transfer, the module will perform a warm-boot operation to read in the new data.

Viewing Port Communication Status

Press [1] or [2] from the Main Menu to view the port communication status for Ports 1 and 2.

Use this command to view communication status and statistics for the selected port. This information can be informative when troubleshooting communication problems.

Viewing Port Configuration

Press [6] or [7] from the Main Menu to view configuration information for ports 1 and 2.

Use this command to display detailed configuration information for the selected port.

Exiting the Program

Press [Esc] to restart the module and force all drivers to be loaded. The module will use the configuration stored in the module's Flash ROM to configure the module.

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4.1.6 Data Analyzer

The data analyzer mode allows you to view all bytes of data transferred on each port. Both the transmitted and received data bytes are displayed. Use of this feature is limited without a thorough understanding of the protocol.

Note: The Port selection commands on the Data Analyzer menu differs very slightly in different modules, but the functionality is basically the same. Use the illustration above as a general guide only. Refer to the actual data analyzer menu on your module for the specific port commands to use.

Analyzing Data for the first application port

Press [1] to display I/O data for the first application port in the Data Analyzer. The following illustration shows an example of the Data Analyzer output.

Analyzing Data for the second application port

Press [2] to display I/O data for the second application port in the Data Analyzer.

Displaying Timing Marks in the Data Analyzer

You can display timing marks for a variety of intervals in the data analyzer screen. These timing marks can help you determine communication-timing characteristics.

Key Interval

[5] 1 milliseconds ticks [6] 5 milliseconds ticks [7] 10 milliseconds ticks [8] 50 milliseconds ticks [9] 100 milliseconds ticks [0] Turn off timing marks

Removing Timing Marks in the Data Analyzer

Press [0] to turn off timing marks in the Data Analyzer screen.

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Viewing Data in Hexadecimal Format

Press [H] to display the data on the current page in hexadecimal format.

Viewing Data in ASCII (Text) Format

Press [A] to display the data on the current page in ASCII format. This is useful for regions of the database that contain ASCII data.

Starting the Data Analyzer

Press [B] to start the data analyzer. After the key is pressed, all data transmitted and received on the currently selected port will be displayed. An example display is shown below:

The Data Analyzer displays the following special characters:

Character Definition

[ ] Data enclosed in these characters represent data received on the port. < > Data enclosed in these characters represent data transmitted on the port. <R+> These characters are inserted when the RTS line is driven high on the port. <R-> These characters are inserted when the RTS line is dropped low on the port. <CS> These characters are displayed when the CTS line is recognized high. _TT_

These characters are displayed when the timing mark interval has been reached. This parameter is user defined.

Stopping the Data Analyzer

Press [S] to stop the data analyzer. Use this option to freeze the display so the data can be analyzed. To restart the analyzer, press [B].

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Returning to the Main Menu

Press [M] to return to the Main Menu.

4.1.7 Data Analyzer Tips

From the main menu, press [A] for the "Data Analyzer". You should see the following text appear on the screen:

After the "Data Analyzer" mode has been selected, press [?] to view the Data Analyzer menu. You will see the following menu:

From this menu, you can select the "Port", the "format", and the "ticks" that you can display the data in.

For most applications, HEX is the best format to view the data, and this does include ASCII based messages (because some characters will not display on HyperTerminal and by capturing the data in HEX, we can figure out what the corresponding ASCII characters are supposed to be).

The Tick value is a timing mark. The module will print a _TT for every xx milliseconds of no data on the line. Usually 10milliseconds is the best value to start with.

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After you have selected the Port, Format, and Tick, we are now ready to start a capture of this data. The easiest way to do so is to go up to the top of you HyperTerminal window, and do a Transfer / Capture Text as shown below:

After selecting the above option, the following window will appear:

Next name the file, and select a directory to store the file in. In this example, we are creating a file ProSoft.txt and storing this file on our root C: drive. After you have done this, press the

button.

Now you have everything that shows up on the HyperTerminal screen being logged to a file called ProSoft.txt. This is the file that you will then be able to email to ProSoft Technical Support to assist with issues on the communications network.

To begin the display of the communications data, you will then want to press 'B' to tell the module to start printing the communications traffic out on the debug port of the module. After you have pressed 'B', you should see something like the following:

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The <R+> means that the module is transitioning the communications line to a transmit state.

All characters shown in <> brackets are characters being sent out by the module. The <R-> shows when the module is done transmitting data, and is now ready to

receive information back. And finally, all characters shown in the [ ] brackets is information being received

from another device by the module. After taking a minute or two of traffic capture, you will now want to stop the "Data

Analyzer". To do so, press the 'S' key, and you will then see the scrolling of the data stop.

When you have captured the data you want to save, open the Transfer menu and choose Capture Text. On the secondary menu, choose Stop.

You have now captured, and saved the file to your PC. This file can now be used in analyzing the communications traffic on the line, and assist in determining communication errors.

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4.1.8 Database View Menu

Press [D] from the Main Menu to open the Database View menu. Use this menu command to view the current contents of the module's database. Press [?] to view a list of commands available on this menu.

M = Main Menu

D = Database Menu

? = Display Menu Redisplays (refreshes) this menu

0 – 3 = Pages 0 to 3000

S = Show Again Redisplays last select ed page of data

–= Back 5 Pages

P = Previous Page

+ = Skip 5 Pages

N = Next Page

D = Decimal Display

H = Hexadecimal Display

F = Float Display

A = ASCII Display

M = Main Menu Goes up one level to main menu

Selects page 0, 1000, 2000 or 3000

Goes back five pages of data

Goes back one page of data

Goes forward five pages of data

Goes forward one page of data

Displays data in decimal format

Displays data in hex format

Displays data in floating point format

Displays data in text format

Viewing Register Pages

To view sets of register pages, use the keys described below:

Command Description [0] [1] [2]

Display registers 0 to 99 Display registers 1000 to 1099 Display registers 2000 to 2099

And so on. The total number of register pages available to view depends on your module's configuration.

Displaying the Current Page of Registers Again

This screen displays the current page of 100 registers in the database.

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Moving Back Through 5 Pages of Registers

Press [-] from the Database View menu to skip back to the previous 500 registers of data.

Viewing the Previous 100 Registers of Data

Press [P] from the Database View menu to display the previous 100 registers of data.

Skipping 500 Registers of Data

Hold down [Shift] and press [=] to skip forward to the next 500 registers of data.

Viewing the Next 100 Registers of Data

Press [N] from the Database View menu to select and display the next 100 registers of data.

Viewing Data in Decimal Format

Press [D] to display the data on the current page in decimal format.