Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual - Manual (Page 110)

110 Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013
Chapter 6 Using Explicit Messaging
ControlLogix Controller Example Ladder Logic Program to Write a Single
Parameter, RSLogix 5000 Software, Version 15.00 or Later
A Parameter Write 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.
Table 19 - Example Controller Tags to Write a Single Parameter
Figure 37 - Example Ladder Logic to Write a Single Parameter
Important: If the explicit message single write must be written
continuously, use DPI Parameter Object Class code 0x93. This
writes to RAM—not NVS (EEPROM) memory. This example
single write message using Class code F writes to NVS. Over
time, continuous writes will exceed the EEPROM life cycle and
cause the drive to malfunction.
ControlLogix Controller – Formatting a Message to Write a Single Parameter,
RSLogix 5000 Software, Version 15.00 or Later
Figure 38 - Parameter Write Single Message Configuration Screens
Operand Controller Tags for Single Write Message Data Type
XIC Execute_Single_Write_Message BOOL
MSG Single_Write_Message MESSAGE