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Multi-drive mode explicit messaging, Drive 1 explicit message example – Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter User Manual

Page 111

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Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013

111

Using Multi-Drive Mode

Chapter 7

Multi-Drive Mode Explicit
Messaging

Parameter addressing for Explicit messaging is different in Multi-drive mode than
in Single-drive mode. In Single-drive mode, the Instance value in the message
equals the desired parameter number in the drive. In Multi-drive mode, an
Instance table is used to account for the parameters in the adapter and up to five
drives. The parameters in the adapter and each of the drives are offset by 400 hex
(1024 decimal):

For example, to access [Accel Time 1] (parameter P041 in PowerFlex 525 and
P109 in PowerFlex 4M) in each of the drives, the following Instances would be
used:

Drive 0 (PowerFlex 525) Instance = 41

Drive 1 (PowerFlex 4M) Instance = 18541 (18432 + 109)

Drive 2 (PowerFlex 4M) Instance = 19565 (19456 + 109)

Drive 3 (PowerFlex 4M) Instance = 20589 (20480 + 109)

Drive 4 (PowerFlex 4M) Instance = 21613 (21504 + 109)

Drive 1 Explicit Message Example

The Explicit message examples in the CompactLogix example program perform a
read and a write to PowerFlex 4M parameter P109 [Accel Time 1]. The
configuration for the read is shown in

Parameter Read Message Configuration on

page 112

and the write is shown in

Parameter Write Message Configuration on

page 112

.

Instance (Hex.)

Instance (Dec.)

Device

Parameter

0x0000...0x3FFF

0...16383

Drive 0

0...1023

0x4000...0x43FF

16384...17407

Dual-port EtherNet/IP adapter parameters

0...1023

0x4400...0x47FF

17408...18431

Drive 0

0...1023

0x4800...0x4BFF

18432...19455

Drive 1

0...1023

0x4C00...0x4FFF

19456...20479

Drive 2

0...1023

0x5000...0x53FF

20480...21503

Drive 3

0...1023

0x5400...0x57FF

21504...22527

Drive 4

0...1023

0x5800...0x5BFF

22528...23551

Dual-port EtherNet/IP adapter parameters

0...1023