5000 software, all versions – Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual User Manual

Page 121

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Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013

121

Using Explicit Messaging Chapter 6

Explicit Messaging Using RSLogix 5000 Software, All Versions

ControlLogix Controller Example Ladder Logic Program to Read a Single

Parameter

A Get Attribute Single message is used to read a single parameter. This read
message example reads the value of parameter 003 - [Output Current] in a
PowerFlex 7-Class drive.

Important: See

Table 17 on page 106

for limitations of PowerFlex 7-Class

drives when using DPI Parameter Object Class code 0x93 for
explicit messaging.

Table 22 - Example Controller Tags to Read a Single Parameter

Figure 49 - Example Ladder Logic to Read a Single Parameter

Operand

Controller Tags for Single Read Message Data Type

XIC

Execute_Single_Read_Message

BOOL

MSG

Single_Read_Message

MESSAGE

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