Rockwell Automation AADvance Controller Configuration Guide User Manual

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Document: 553633
ICSTT-RM405f-EN-P

Issue 07

Configuration Guide (AADvance Controller)

Modbus Slave Link Identification and Control Settings

Each Modbus slave link object has a set of identification and control settings as detailed

in the tables.

Note: The AADvance Workbench groups these settings together under the label
'General'.

Table 29:

Modbus RTU Slave Link Identification and Control Settings

Description

Value(s)

Default

Remarks

Slave Id

1 to 247

You have to allocate a unique Slave Id

for each slave configured to a
particular master

Retries

0 to 10

Used in conjunction with the master

message timeout value

Control Variable
Address

1 to 65,536,
or 0 to disable

The address of a control register (†)

0 = inactive

1 = standby

2 = active

Status Variable
Address

1 to 65,536,
or 0 to disable

The address of a status register (†)

0 = healthy

1 = initializing

2 = communications failure

3 = error

Slave Wait

Interval

0 to 65,535ms

100ms

Ping Mode

Do Not Ping;
Function Code 08;

Read Holding Register

Function Code 08

Ping Interval

0 to 65,535ms

5,000ms

Ping Address

1 to 65,536,
or 0 to disable

Note: (†) The 'remarks' here summarize the values allowed for the contents of the

of the slave. The Status variable may be read by the application to monitor the slave.
These variables are described in Modbus Slave Link Control and Status Registers.