Allen-Bradley 22-COMM-E FRN 1.xxx, User Manual

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7-20 Using Multi-Drive Mode
Parameter addressing for Explicit messaging is different in Multi-Drive
than with Single mode. In Single 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 Parameter P39 - [Accel Time 1] in each of the
drives, the following Instances would be used:
Drive 0 Instance = 17447 (17408 + 39)
Drive 1 Instance = 18471 (18432 + 39)
Drive 2 Instance = 19495 (19456 + 39)
Drive 3 Instance = 20519 (20480 + 39)
Drive 4 Instance = 21543 (21504 + 39)
Figure 7.11 Drive 4 Control Routine (Continued)
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Multi-Drive Mode Explicit Messaging
Instance (Hex.) (Dec.) Device Parameter
4000 - 43FF 16384 - 17407 22-COMM-E 0 - 1023
4400 - 47FF 17408 - 18431 Drive 0 0 - 1023
4800 - 4BFF 18432 - 19455 Drive 1 0 - 1023
4C00 - 4FFF 19456 - 20479 Drive 2 0 - 1023
5000 - 53FF 20480 - 21503 Drive 3 0 - 1023
5400 - 57FF 21504 - 22527 Drive 4 0 - 1023