Figure 6.33 – Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual

Page 154

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6-28

Using Explicit Messaging

20-COMM-E EtherNet/IP Adapter User Manual

Publication 20COMM-UM010G-EN-P

PLC-5 Controller Example Single Write Request Data

In this specific N151:30 message example, we use the data table address in

Figure 6.32

to store the request value (10.0 sec.) that was written to drive

parameter 140 - [Accel Time 1]. To determine the data type for the
parameter and its required scaling, see the specific drive documentation.

Figure 6.32 Example Single Write Request Data File

Figure 6.33

shows example ladder logic to correctly format the three

possible data types for write messages of different parameter types in the
PLC-5 controller.

Figure 6.33 Example Ladder Logic to Format Parameter Data Types for Writes

For 16-bit Integer

Parameters – All

PowerFlex 7-Class

Drives

For 32-bit Integer

Parameters – All

PowerFlex 7-Class

Drives

For 32-bit REAL

(Floating Point)

Parameters –

PowerFlex 700S

and PowerFlex

750-Series Drives

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