ProSoft Technology MVI56-LTQ User Manual

MVI56-LTQ

ControlLogix Platform

Limitorque Valve Actuator Master Communication Module

August 30, 2010

USER MANUAL

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 our products, documentation, or support, please write or call us.

ProSoft Technology 5201 Truxtun Ave., 3rd Floor Bakersfield, CA 93309 +1 (661) 716-5100 +1 (661) 716-5101 (Fax) www.prosoft-technology.com support@prosoft-technology.com

August 30, 2010

ProSoft Technology

, ProLinx ®, inRAx ®, ProTalk®, and RadioLinx ® are Registered Trademarks of ProSoft Technology, Inc. All other brand or product names are or may be trademarks of, and are used to identify products and services of, their respective owners.

ProSoft Technology® 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-ROM, and are available at no charge from our web site: www.prosoft-technology.com

Printed documentation is available for purchase. Contact ProSoft Technology for pricing and availability. North America: +1.661.716.5100 Asia Pacific: +603.7724.2080 Europe, Middle East, Africa: +33 (0) 5.3436.87.20 Latin America: +1.281.298.9109

Important Installation Instructions

Power, Input, and Output (I/O) wiring must be in accord anc e with Class I, Division 2 wiring methods, Article 501-4 (b) of the National Electrical Code, NFPA 70 for installation in the U.S., or as specified in Section 18-1J2 of the Canadian Electrical Code for installations in Canada, and in accordance with the authority having jurisdiction. The following warnings must be heeded:

A WARNING - EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR

CLASS I, DIV. 2;

B WARNING - EXPLOSION HAZARD - WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER BEFORE

REPLACING OR WIRING MODULES

C WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN

SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.

D THIS DEVICE SHALL BE POWERED BY CLASS 2 OUTPUTS ONLY.

MVI (Multi Vendor Interface) Modules

WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.

AVERTISSEMENT - RISQUE D'EXPLOSION - AVANT DE DÉCONNECTER L'ÉQUIPEMENT, COUPER LE COURANT OU S'ASSURER QUE L'EMPLACEMENT EST DÉSI GNÉ NON DANGEREUX.

Warnings

North America 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 non-hazardous.

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 @ 5.1 Vdc; 3 mA @ 24 Vdc  Operating Temperature: 0°C to 60°C (32°F to 140°F)  Storage Temperature: -40°C to 85°C (-40°F to 185°F)  Shock: 30 g operational; 50 g non-operational; Vibration: 5 g from 10 Hz to 150 Hz  Relative Humidity: 5% to 95% (without condensation)  All phase conductor sizes must be at least 1.3 mm(squared) and all earth ground conductors must be at least

4mm(squared).

CSA/cUL

C22.2 No. 213-1987

CSA CB Certified

IEC61010

EN60079-0 Category 3, Zone 2

243333

ME06

Markings:

ATEX

EN60079-15

Battery Life Advisory

The MVI46, MVI56, MVI69, and MVI71 modules use a rechargeable Lithium Vanadium Pentoxide battery to backup the 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 the battery becomes fully charged. After it is fully charged, the battery provides backup power for the CMOS setup and the real-time clock for approximately 21 days. When the battery is fully discharged, the module will revert to the default BIOS and clock settings.

Note: The battery is not user replaceable.

MVI56-LTQ ♦ ControlLogix Platform Contents Limitorque Valve Actuator Master Communication Module User Manual

Contents

Your Feedback Please ........................................................................................................................ 2

ProSoft Technology® Product Documentation .................................................................................... 2

Important Installation Instructions ....................................................................................................... 3

MVI (Multi Vendor Interface) Modules ................................................................................................ 3

Warnings ............................................................................................................................................. 3

Battery Life Advisory ........................................................................................................................... 4

Guide to the MVI56-LTQ User Manual 9

1 Start Here 11

1.1 System Requirements ............................................................................................. 12

1.2 Package Contents ................................................................................................... 13

1.3 Setting Jumpers ...................................................................................................... 14

1.4 Installing the Module in the Rack ............................................................................ 15

1.5 Connecting Your PC to the ControlLo gix Pr oces s or ............................................... 16

1.6 Opening the Sample Ladder Logic .......................................................................... 17

1.6.1 Configuring the RSLinx Driver for the PC COM Port .............................................. 17

1.7 Downloading the Sample Program to the Processor .............................................. 19

1.8 Connect your PC to the Module .............................................................................. 20

2 Configuring the MVI56-LTQ Module 21

This chapter gives you a summary of all possible configuration parameters and their allowable settings and ranges. For more detailed information on configuration and operation options, please

refer to the Reference chapter. ......................................................................................................... 21

2.1 Reference Documents ............................................................................................. 21

2.2 Configuration Object (LTQCfg) ............................................................................... 22

2.3 Configuration Data .................................................................................................. 23

2.3.1 BaudRate ................................................................................................................ 23

2.3.2 MsgRespTm ............................................................................................................ 23

2.3.3 MaxSlaves ............................................................................................................... 23

2.3.4 BTRMax................................................................................................................... 23

2.3.5 BlkDelay .................................................................................................................. 24

2.3.6 LastState ................................................................................................................. 24

2.3.7 NetPoll ..................................................................................................................... 24

2.3.8 PropDelay ................................................................................................................ 25

2.3.9 RTSOn..................................................................................................................... 25

2.3.10 SpecPolling ............................................................................................................. 26

2.3.11 Use_CTS ................................................................................................................. 26

2.3.12 BlkFailCnt ................................................................................................................ 26

2.3.13 ActiveSlaves ............................................................................................................ 27

3 Ladder Logic 29

3.1 Module Data Object (LTQModuleDef) ..................................................................... 30

3.1.1 Status Object (LTQStat) .......................................................................................... 31

3.1.2 User Data Objects ................................................................................................... 32

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Contents MVI56-LTQ ♦ ControlLogix Platform User Manual Limitorque Valve Actuator Master Communication Module

3.2 Adding the Module to an Existing Project ............................................................... 34

4 Diagnostics and Troubleshooting 37

4.1 LED Status Indicators ............................................................................................. 38

4.1.1 Clearing a Fault Condition ...................................................................................... 39

4.1.2 Troubleshooting ...................................................................................................... 40

4.1.3 Communication Error Codes .................................................................................. 41

4.2 Using the Configuration/Debug Port ....................................................................... 42

4.3 Reading Status Data from the Module ................................................................... 43

4.3.1 Required Software .................................................................................................. 43

4.3.2 The Configuration/Debug Menu .............................................................................. 44

4.3.3 Main Menu .............................................................................................................. 45

4.3.4 Data Analyzer ......................................................................................................... 47

4.3.5 Data Analyzer Tips ................................................................................................. 49

4.3.6 Database View Menu .............................................................................................. 52

4.3.7 Valve Data Menu .................................................................................................... 54

5 Reference 55

5.1 Product Specifications ............................................................................................ 55

5.1.1 General Specifications ............................................................................................ 55

5.1.2 Hardware Specifications ......................................................................................... 56

5.1.3 Functional Specifications ........................................................................................ 57

5.2 Functional Overview ............................................................................................... 58

5.2.1 General Concepts ................................................................................................... 58

5.2.2 Data Flow Between MVI56-LTQ Module and ControlLogix Processor .................. 67

5.3 Cable Connections ................................................................................................. 68

5.3.1 RS-232 Configuration/Debug Port .......................................................................... 68

5.3.2 RS-232 Application Port(s) .................................................................................... 68

5.3.3 Network Cable Connection to Limitorque RS-232/RS-485 Converters .................. 71

5.3.4 RS-422 .................................................................................................................... 71

5.3.5 RS-485 Application Port(s) ..................................................................................... 72

5.3.6 DB9 to RJ45 Adaptor (Cable 14) ............................................................................ 72

5.4 MVI56-LTQ Database Definition ............................................................................. 74

5.5 MVI56-LTQ Status Data Definition ......................................................................... 76

5.6 LTQValve Object Definition .................................................................................... 77

5.7 Command Usage for Limitorque Products ............................................................. 80

5.8 Polling Schemes ..................................................................................................... 82

5.9 Typical Network Loop ............................................................................................. 85

6 Support, Service & Warranty 87

How to Contact Us: Technical Support ............................................................................................ 87

6.1 Return Material Authorization (RMA) Policies and Conditions ............................... 89

6.1.1 All Product Returns: ................................................................................................ 89

6.1.2 Procedures for Return of Units Under Warranty: .................................................... 90

6.1.3 Procedures for Return of Units Out of Warranty: .................................................... 90

6.2 LIMITED WARRANTY ............................................................................................ 91

6.2.1 What Is Covered By This Warranty ........................................................................ 91

6.2.2 What Is Not Covered By This Warranty .................................................................. 92

6.2.3 Disclaimer Regarding High Risk Activities .............................................................. 92

6.2.4 Intellectual Property Indemnity ............................................................................... 93

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MVI56-LTQ ♦ ControlLogix Platform Contents Limitorque Valve Actuator Master Communication Module User Manual

6.2.5 Disclaimer of all Other Warranties .......................................................................... 93

6.2.6 Limitation of Remedies ** ........................................................................................ 94

6.2.7 Time Limit for Bringing Suit ..................................................................................... 94

6.2.8 No Other Warranties ............................................................................................... 94

6.2.9 Allocation of Risks ................................................................................................... 94

6.2.10 Controlling Law and Severability ............................................................................. 95

Index 97

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Page 8 of 98 ProSoft Technology, Inc. August 30, 2010

MVI56-LTQ ♦ ControlLogix Platform Start Here

Details

system requirements, hardware installation, and (page 58, page 53)

These sections contain general references

Index

This section contains Support, Service and

Limitorque Valve Actuator Master Communication Module User Manual

Guide to the MVI56-LTQ User Manual

Function

Introduction (Must Do)

Diagnostic and Troubleshooting

Reference Product Specifications

Functional Overview

Support, Service, and Warranty

Index

→

Section to Read

Start Here (page 11)

Diagnostics and Troubleshooting (page 37)

Reference (page 55) Product

Specifications (page

55) Functional Overview

Support, Service and Warranty (page

87)

This section introduces the customer to the module. Included are: package contents,

basic configuration.

This section describes Diagnostic and Troubleshooting procedures.

associated with this product, Specifications, and the Functional Overview.

Warranty information. Index of chapters.

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MVI56-LTQ ♦ ControlLogix Platform Start Here Limitorque Valve Actuator Master Communication Module User Manual

1 Start Here

In This Chapter

 System Requirements

 Package Contents ................................................................................. 13

 Setting Jumpers .................................................................................... 14

 Installing the Module in the Rack ........................................................... 15

 Connecting Your PC to the ControlLogix Processor .............................. 16

 Opening the Sample Ladder Logic ........................................................ 17

 Downloading the Sample Program to the Processor ............................. 19

 Connect your PC to the Module ............................................................ 20

........................................................................... 12

To get the most benefit from this User Manual, you should hav e the following skills:

 Rockwell Automation

RSLogix™ software: launch the program, configure

ladder logic, and transfer the ladder logic to the processor

 Microsoft Windows: install and launch programs, execute menu commands,

navigate dialog boxes, and enter data

 Hardware installation and wiring: install the module, and safely connect

LTQ and ControlLogix devices to a power source and to the MVI56-LTQ module’s application port(s)

Caution: You must be able to complete the application without exposing personnel or

equipment to unsafe or inappropriate working conditions.

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1.1 System Requirements

The MVI56-LTQ 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-LTQ module. The module requires 800 mA of available power.

 Rockwell Automation RSLogix 5000 programming software version 2.51 or

higher

 Rockwell Automation RSLinx communication software  Pentium

recommended

 Supported operating systems:

o Microsoft Windows XP Professional with Service Pack 1 or 2 o Microsoft Windows 2000 Professional with Service P ack 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)

 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.

II 450 MHz minimum. Pentium III 733 MHz (or better)

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.

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MVI56-LTQ ♦ ControlLogix Platform Start Here

Qty.

Part Name

Part Number

Part Description

MVI56-LTQ Module

MVI56-LTQ

Limitorque Valve Actuator Master

Cable

Cable #15, RS232 Null Modem

For RS232 Connection to the CFG Port

Cable

Cable #14, RJ45 to cable

For DB9 Connection to Module’s Port ProSoft Solutions CD

Contains sample programs, utilitie s and

Limitorque Valve Actuator Master Communication Module User Manual

1.2 Package Contents

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

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

1 3

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

Adapter 1454-9F Two Adapters, DB9 Female to Screw

Communication Module

DB9 Male Adapter

Terminal. For RS422 or RS485 Connections to Port 1 and 2 of the Module

documentation for the MVI56-LTQ module.

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1.3 Setting Jumpers

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

The following illustration shows the MVI56-LTQ 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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MVI56-LTQ ♦ ControlLogix Platform Start Here Limitorque Valve Actuator Master Communication Module User Manual

1.4 Installing 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-LTQ 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-LTQ 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. 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 must 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.

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1.5 Connecting Your P C to the Control Logix Processor

There are several ways to establish communication between your PC and the ControlLogix processor. The following steps show how to establish communication through the serial interface. It is not mandatory that you use the processor's serial interface. You may access the processor through whatever network interface is available on your system. Refer to your Rockwell Automation documentation for information on other connection methods.

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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MVI56-LTQ ♦ ControlLogix Platform Start Here Limitorque Valve Actuator Master Communication Module User Manual

1.6 Opening the Sample Ladder Logic

The sample program for your MVI56-LTQ 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 Solut io ns CD pr ovides 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 Configuring the RSLinx Driver for the PC COM Port

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

1 Open RSLinx. 2 Open the C

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

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3 Click to select the driver, and then click C

ONFIGURE. This action opens the

Configure RS-232 DF1 Devices dialog box.

4 Click the A

UTO-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 Downloading the Sample Program to the Processor

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

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

menu, and then choose DOWNLOAD. RSLogix 5000 will establish communication with the processor. You do not have to download through the processor's serial port, as shown here. You may download through any available network connection.

2 When communication is established, RSLogix 5000 will open a confirmation

dialog box. Click the D processor.

OWNLOAD button to transfer the sample program to the

3 RSLogix 5000 will compile the program and transfer it to the processor. This

process may take a few minutes.

4 When the download is complete, RSLogix 5000 will open another

confirmation dialog box. If the key switch is in the REM position, click OK 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.

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MVI56-LTQ ♦ ControlLogix Platform Configuring the MVI56-LTQ Module Limitorque Valve Actuator Master Communication Module User Manual

2 Configuring th e MVI56-LTQ Module

In This Chapter

 Reference Documents

 Configuration Object (LTQCfg) .............................................................. 22

 Configuration Data ................................................................................ 23

This chapter gives you a summary of all possible configuration parameters and their allowable settings and ranges. For more detailed information on configuration and operation options, please refer to the Reference chapter.

2.1 Reference Documents

The following Limitorque supporting documents can assist you in deploying your network. These documents may be obtained from your local Limitorque representative or downloaded from the Flowserve Corporation website: http://www.flowserve.com/Products/Heritage-Brands/ch.Limitorque.literature

 Wiring Specifications

http://www.flowserve.com/files/Files/Literature/ProductLiterature/FlowControl/ Limitorque/440-15001.pdf

 Register mapping and communications

http://www.flowserve.com/files/Files/Literature/Products/Flowcontrol/Limitorqu e/LMAIM4019.pdf

 Modbus information and wiring

http://www.flowserve.com/files/Files/Literature/Products/Flowcontrol/Limitorqu e/LMAIM1329.pdf

........................................................................... 21

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Configuring the MVI56-LTQ Module MVI56-LTQ ♦ ControlLogix Platform

Name

Data Type

Description

BaudRate

INT

Baudrate for port (110 to 115.2K)

MsgRespTm

INT

Message Response Timeout

MaxSlaves

INT

Maximum number of slaves to consider

BTRMax

BlkDelay

Block transfer delay counter

LastState

INT

State for slave data on comm failure

NetPoll

INT

Network polling scheme (0=A/B, 1=A, 2=B)

PropDelay

INT

Propagation delay for messages

RTSOn

INT

RTS to TxD delay (milliseconds)

INT

Special polling used (0=No, 1=T-MID, 2=Reg 6/7;

Use_CTS

INT

Monitor CTS line (0=No, 1=Yes)

BlkFailCnt

INT

Number of failed transfers before COM shutdown

ActiveSlaves

INT[10]

Array to set active slaves (1-bit/slave)

User Manual Limitorque Valve Actuator Master Communication Module

2.2 Configuration Object (LTQCfg)

The configuration object LTQCfg contains all the configuration information required by the module. Fill in the members of this object to set the parameters required for each application. This data set will be transferred from the processor to the module each time a restart (warm or cold boot) operation is requested. Configuration of the module is performed by filling in the values in the module object defined in the Controller Tags Edit Tags dialog box. Each parameter required by the module has a defined location in the object. The following table describes the structure of the object.

INT INT

SpecPolling

Maximum BTR block count

other numbers of the range 1 to 65535 refer to the corresponding register).

Each parameter contained in this object is described in MVI56-LTQ Configuration Data Definition (page 23). Ensure that you fill in each parameter carefully for successful application of the module in a system.

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MVI56-LTQ ♦ ControlLogix Platform Configuring the MVI56-LTQ Module

Value

Baud Rate

1200

1200 Baud

2400

2400 Baud

4800

9600

19200

19200 Baud

38400

38400 Baud

57600

57600 Baud

115200

115200 Baud

Limitorque Valve Actuator Master Communication Module User Manual

2.3 Configuration Data

This section contains listings of the MVI56-LTQ module’s configuration that is read from the ControlLogix processor when the module first initializes.

2.3.1 BaudRate

The baud rate at which the port is to operate. The available configurations are as follows:

* Limitorque Field Unit Factory Default Setting

2.3.2 MsgRespTm

This register represents the message response timeout period in 1 millisecond increments. This is the time which a port configured as a Master will wait before re-transmitting a command if no response is received from the addressed slave. The value is set depending on the expected slave response times.

A value of 200 milliseconds should be the minimal setting. Values from 200 to 65535 (0xffff) are permitted.

4800 Baud 9600 Baud *

2.3.3 MaxSlaves

This value is used by the module to optimize the number of slaves polled by the module. The value entered here can range from 1 to 150, and should always meet or exceed the last slave in the Active Slave Table.

2.3.4 BTRMax

This value is not used in the current version of the software.

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Configuring the MVI56-LTQ Module MVI56-LTQ ♦ ControlLogix Platform

Value

Description

Maintain last data values

Value

Description

Port 1 polling only

Port 2 polling only

User Manual Limitorque Valve Actuator Master Communication Module

2.3.5 BlkDelay

This is an empirical value used by the module to balance the amount of time the module spends block transferring and the amount spent handling port communications. The value entered is used as a loop counter in the module, where each time through the loop the count is incremented. When the count equals the Block Transfer Delay Counter a Block Transfer sequence is initiated.

Example: In Master Mode applications with the module in a remote rack, the frequency of command execution can be improved by entering a value of 75 to

150. The value must be determined empirically.

2.3.6 LastState

This value determines the state of the Limitorque read register values that are returned to the PLC upon the detection of a communication failure state (that is, comm has failed on both Port A and B).

Clear last data values (default)

2.3.7 NetPoll

Loop Mode (Port 1 and 2 alternating)

The Network Loop Mode emulates Limitorque’s polling scheme that takes advantage of the actuator ability to repeat data transmissions and to operate in a looped mode. In this mode, the module will alternate communications between Port 1 and 2. Command failures on one port will be retried on the other port.

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MVI56-LTQ ♦ ControlLogix Platform Configuring the MVI56-LTQ Module

Value

Number of Slaves

1 to 20

21 to 40

61 to 80

81 to 100

101 to 120

121 to 140

141 to 150

Limitorque Valve Actuator Master Communication Module User Manual

2.3.8 PropDelay

Provides a delay time between primary port polls to prevent network collisions on port changeover. Values should be no lower than the listed minimal settings. The value represents delay time in milliseconds.

41 to 60

Note: These values are reference only. Empirical data gathered on site will enable proper adjustment of these values.

Slave #1 Channel A Fail bit (port 1) being true AND all other slave communications not in fault will be an indication of improper adjustment of this value.

2.3.9 RTSOn

This value represents the time in 1 millisecond increments for delay between asserting RTS and the actual transmission of data. Delay between the receipt of messages and transmit of new message must be greater than 10 milliseconds. When used, a value of 20 is typically inserted into this field.

Note: This value is reference only. Empirical data gathered on site will enable proper adjustment of these values.

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Configuring the MVI56-LTQ Module MVI56-LTQ ♦ ControlLogix Platform

Value

Description

Disabled

Registers 6/7, Analog Input 1 and 2

Any value other than 0, 1, or 2 will tell the module to poll that corresponding

User Manual Limitorque Valve Actuator Master Communication Module

2.3.10 SpecPolling

Enables polling of specific registers in addition to the standard polling. A value other than zero will cause an additional poll request to be sent to the slaves that are enabled. The results are placed in registers 8 and 9 in the slave response data block.

Using this feature has a performance cost as the time available for the standard polling is shared with the special polling.

3 to 65535

register number. This been added to allow for expanded use of the SpecPolling tag. If low byte is set to 1 or 2 then the existing logic will will remain consistent for backwards compatibility.

2.3.11 Use_CTS

This parameter defines if the CTS line is to be monitored for the communication process. If the parameter is set to 0, the line will not be monitored. If the parameter is set to 1, the modem control line must be set after the RTS line is asserted for communications to occur.

2.3.12 BlkFailCnt

This parameter defines the number of successive block transfers that must occur before the communication channels are shutdown. If the value is set to 0, communications will continue on the ports even if the data transfer between the processor and module fails. If the value is set to greater-than 0, the module will suspend communications when the number of block transfer failures set is exceeded. The valid range for this parameter is 0 to 65535.

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MVI56-LTQ ♦ ControlLogix Platform Configuring the MVI56-LTQ Module

Index

Description

Slaves 1 to 16

Slaves 33 to 48

Slaves 49 to 64

Slaves 65 to 80

Slaves 81 to 96

Slaves 97 to 112

Slaves 113 to 128

Slaves 145 to 150

Limitorque Valve Actuator Master Communication Module User Manual

2.3.13 ActiveSlaves

These 10 words allow the user to configure the specific slaves that are active on a network. The intent of this table is to allow the user to selectively enable slave addresses and therefore not have to be concerned about activating slave addresses continuously.

All values are entered into the table in a right to left order with bit 0 representing the lower address. The slave addresses are mapped into the table as follows:

Slaves 17 to 32

Slaves 129 to 144

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Configuring the MVI56-LTQ Module MVI56-LTQ ♦ ControlLogix Platform User Manual Limitorque Valve Actuator Master Communication Module

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MVI56-LTQ ♦ ControlLogix Platform Ladder Logic Limitorque Valve Actuator Master Communication Module User Manual

3 Ladder Logic

In This Chapter

 Module Data Object (LTQModuleDef)

 Adding the Module to an Existing Project .............................................. 34

................................................... 30

Ladder logic is required for application of the MVI56-LTQ 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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Ladder Logic MVI56-LTQ ♦ ControlLogix Platform

Name

Data Type

Description

Cfg

Module Setup information

Stat

LTQStat

Status information in each read block

LTQBackplane

Data to handle backplane logic

Valve

LTQValve[150]

Valve data

DoneBits

INT[10]

Done bit data for commands

Open

INT[10]

Open Command bits

Stop

Close Command bits

InitESD

INT[10]

Initiate ESD bits

TermESD

INT[10]

Terminate ESD bits

Reset

INT[10]

Reset Command bits

Contactors

LTQCont[6]

Contactors #1 to #6 engage/disengage bits

AnalogCmd

User Manual Limitorque Valve Actuator Master Communication Module

3.1 Module Data Object (LTQModuleDef)

All data related to the MVI56-LTQ 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 following table describes the structure of this object.

LTQCfg

INT[10] INT[10]

INT[10]

AnalogPos

INT[150] Analog valve positions (0-100) to be used for

Stop Command bits

Command valve to set analog position bits

set cmd

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

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