Rockwell Automation 25B PowerFlex 525 Embedded EtherNet/IP Adapter - Manual (Page 107)

Rockwell Automation Publication 520COM-UM001B-EN-E - March 2013 107
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 5
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(0 + 41)
• Drive 1 (PowerFlex 4M) Instance = 17517 (17408 + 109)
• Drive 2 (PowerFlex 4M) Instance = 18541 (18432 + 109)
• Drive 3 (PowerFlex 4M) Instance = 19565 (19456 + 109)
• Drive 4 (PowerFlex 4M) Instance = 20589 (20480 + 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 108 and the write is shown in Parameter Write Message Configuration on
page 108 .
Instance (Hex.) Instance (Dec.) Device Parameter
0x0000...0x3FFF 0...16383 Drive 0 0...1023
0x4000...0x43FF 16384...17407 Interface
(1)
(1) Interface is the current interface being used to access the information. Note: If using the embedded EtherNet/IP adapter, this
instance range contains the same data as Drive 0.
0...1023
0x4400...0x47FF 17408...18431 Drive 1 0...1023
0x4800...0x4BFF 18432...19455 Drive 2 0...1023
0x4C00...0x4FFF 19456...20479 Drive 3 0...1023
0x5000...0x53FF 20480...21503 Drive 4 0...1023
0x5400...0x57FF 21504...22527 Option 0...1023