Rockwell-automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Commun Manual de usuario Pagina 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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