Prosoft-technology MVI56E-MNETCR Instrukcja Użytkownika Pobierz pdf (Strona 113)

MVI56E-MNETCR ♦ ControlLogix Platform Reference

Modbus TCP/IP Multi Client Enhanced Communications Module for Remote Chassis User Manual

ProSoft Technology, Inc. Page 113 of 159

June 14, 2011

5.3.2 Client Command List

In order for the Client to function, the module's Client Command List must be

defined in the MNET Client x Commands section of the configuration. This list

contains up to 16 individual entries, with each entry containing the information

required to construct a valid command. This includes the following:

 Command enable mode: (0) disabled or (1) continuous

 IP address and service port to connect to on the remote server

 Slave Node Address

 Command Type - Read or Write up to 100 words per command

 Database Source and Destination Register Address - Determines where data

will be placed and/or obtained

 Count - Select the number of words to be transferred - 1 to 100

 Poll Delay - 1/10

seconds

5.3.3 Client Command Errors

You can use the configuration's MNET Client x Command Error Pointer, which is

separately configured for each Client, to set the database offset register where all

command error codes will be stored. This means that the first register refers to

command 1 and so on.

Offset Description

1 Command 1 Error

2 Command 2 Error

3 Command 3 Error

… ….

… …

For every command that has an error, the module automatically sets the poll

delay parameter to 30 seconds. This instructs the module to wait 30 seconds

until it attempts to issue the command again.

As the list is read in from the configuration file and as the commands are

processed, an error value is maintained in the module for each command. This

error list can be transferred to the processor. The errors generated by the module

are displayed in the following table.

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 158 159

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Prosoft-technology MVI56E-MNETCR Instrukcja Użytkownika Strona 113