Rockwell Automation AADvance Controller Configuration Guide User Manual

Page 223

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Document: 553633
ICSTT-RM405f-EN-P
Issue 07

9-37

8) Specify the Slave Wait Interval (in milliseconds), or accept the default.
9) Set the Ping Mode and Ping Interval. The interval is specified in milliseconds. If

you are using the Read Holding Register mode, specify the Ping Address as well;

otherwise accept the default 0.

10) Click Apply.

Configure a Modbus Slave Link for Modbus TCP

Note: You have to create a single Modbus slave link object below a Modbus master
object configured for Modbus TCP before you can carry out this task.

You have to configure the Modbus TCP slave link to suit the slave device. Do the
following:

1) Select the Equipment tab on the Project tree view and then select the slave link.

The editor for the slave link opens.

The editor has three tabs; the tabs are named General, Messages and Statistics.

2) Select the General tab.
3) Enter a suitable Name for the slave link, or accept the default. You can use any

combination of alphanumeric characters and punctuation, including spaces.

4) Accept the default Unit Id.

Note: The Unit Id is a part of the Modbus TCP header and is not normally
used.

5) Set the IP Address to the network address used by the slave device.
6) Set the TCP Port to the TCP port number on which the slave device is offering

services.

7) Set the Retries field to the number of times the Modbus master should try to

retransmit a message to the slave if it does not receive a response.

Note: The Retries field is used in conjunction with the message timeout value set
for the Modbus master.

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