Prosoft-technology MVI71-MCM Manual do Utilizador descarregar pdf (Página 22)

MVI71-MCM ♦ PLC Platform Installing and Configuring the Module

Modbus Communication Module

Page 22 of 111 ProSoft Technology, Inc.

December 28, 2007

Offset Description

4 Swap Code

5 Slave Address

6 Modbus Function

7 Destination Address

8 Spare

9 Spare

10 Copy the new ladder file to your existing ladder application.

11 Modify the communication set up jumper in the back of the MVI71-MCM,

selecting the communication type for each port (485, 422 or 232).

12 Insert the module in the rack and connect the port(s) to the Modbus network.

Make sure the connection correctly follows the wiring diagrams shown in this

manual.

13 Turn on the rack power and download the new ladder file to the PLC.

2.2 Configuring the Module

In order for the MVI71-MCM 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

requires, depending on the operating modes to be supported.

Module Register

Address

Functional

Modes Affected

Name Description

5000 to 5009 Data Transfer General Module

Configuration

This section of the configuration data contains the

module configuration data that defines the data transfer

between the module and the PLC processor.

5010 to 5039

and

5040 to 5069

Master and

Slave

Port

Configuration

These sections define the characteristics of each of the

Modbus serial communication ports on the module.

These parameters must be set correctly for proper

module operation.

5200 to 6199

and

6400 to 7399

Master Master

Command List

If the module's Master Mode functionality is to be

supported on a port, the Master Command List must be

set up.

Refer to Installing and Configuring the Module for a description of the

configuration of the module. The MVI71-MCM module must be configured at

least once when the card is first powered, and any time thereafter when the

parameters must be changed.

2.2.1 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.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 110 111

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