Figure 6.57, To store the response v – Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual

Page 172

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6-46

Using Explicit Messaging

20-COMM-E EtherNet/IP Adapter User Manual

Publication 20COMM-UM010G-EN-P

In this example, the parameters have the following values.

Figure 6.57 Example Scattered Read Response Data File for PowerFlex 750-Series

Drive

The PowerFlex 750-Series drive uses 32-bit integer and REAL parameters.
A COP command must be used to copy the N60 integer array to a 16-bit
integer or floating tag.

Figure 6.58

shows the ladder logic used for this

example. If the parameter data type is a 32-bit integer, the data remains split
into two 16-bit integers because there are no 32-bit integers in the SLC 500
controller. If the parameter data type is a REAL, then the destination tag is a
floating point. In this case, the value must first be swapped with the high
and low 16-bit integers, and then the two integers copied (COP) into a
floating point address. See the drive documentation to determine the
parameter data type (32-bit integer or REAL).

PowerFlex 7-Class Drive Parameter

Address

Read Value

1 - [Output Freq]

N60:1

32.5 Hz

3 - [Output Current]

N60:4

0.01 Amp

6 - [Output Voltage]

N60:7

118.7V AC

12 - [DC Bus Voltage]

N60:10

329.2V DC

17 - [Analog In2 Value]

N60:13

8.318 mA

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