Rockwell Automation 20-COMM-Q ControlNet Adapter - Manual (Page 153)

Using Explicit Messaging 6-25
20-COMM-C/Q ControlNet Adapter User Manual
Publication 20COMM-UM003F-EN-P
PLC-5 Controller Example Single Read Response Data
In this specific N40:0 message example, we use the data table address in
Figure 6.28 to store the response value (0.13 amps) that was read from drive
parameter 003 - [Output Current]. To determine the data type for the
parameter and its required scaling, see the specific drive documentation.
Figure 6.28 Example Single Read Response Data File
Figure 6.29 shows example ladder logic to correctly format the three
possible data types for read messages of different parameter types in the
PLC-5 controller.
Figure 6.29 Example Ladder Logic to Format Parameter Data Types for Reads
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