Rockwell Automation 1747-SCNR ControlNet Scanner Module Reference Manual User Manual

Page 38

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Publication 1747-RM623D-EN-P - June 2006

4-4 Work with the ControlNet Explicit Message Instruction

• Data Table Address (Send Data)

If Size in Words (Send Data) is non-zero, then this field requires
a starting integer (N) file address for storing the Send Data.

• Data Table Address (Receive Data)

If Size in Words (Receive Data) is non-zero, then this field requires a
starting integer (N) file address for storing the Receive Data.

Parameters for target device on the general tab include the following.

• Message Timeout (x1 ms)

The amount of time in milliseconds that the scanner will wait for
a reply to the explicit message command. Range is 2 to 32767.

• ControlNet Addr (dec)

The target ControlNet node address. Valid range is 1 to 99. If
you enter in the local scanner’s ControlNet node address, the
command is executed by the local scanner.

• Service

This pull-down menu lets you select services based on name
rather than Service Code. The Custom service lets you enter any
Service Code in the hexadecimal range of 1 to 7F. These services
are listed in the pull-down selection.

Read Assembly
Write Assembly
Write Output Point
Read Output Point
Read Input Point
Read Parameter
Write Parameter.
Read Analog Input
Write Analog Output
Generic Get Attribute Single
Generic Set Attribute Single
Generic Get Member
Generic Set Member
Reset Identity Object
Custom

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