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Rockwell Automation 20-COMM-Q ControlNet Adapter User Manual

Page 138

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6-10

Using Explicit Messaging

20-COMM-C/Q ControlNet Adapter User Manual
Publication 20COMM-UM003F-EN-P

ControlLogix Controller Example Ladder Logic Program to Write a Single Parameter
Using RSLogix 5000 Software, Any Version

A Set Attribute Single message is used to write to a single parameter. This
write message example writes a value to parameter 140 - [Accel Time 1] in
a PowerFlex 7-Class drive.

Important: See

Table 6.A on page 6-2

for limitations of PowerFlex 7-Class

and PowerFlex 750-Series drives when using DPI Parameter
Object Class code 0x93 or Host DPI Parameter Object Class
code 0x9F for explicit messaging.

Table 6.E Example Controller Tags to Write a Single Parameter

Figure 6.8

Example Ladder Logic to Write a Single Parameter

Operand

Controller Tags for Single Write Message

Data Type

XIC

Execute_Single_Write_Message

BOOL

MSG

Single_Write_Message

MESSAGE

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