User guide

Using Multi-Drive Mode 8-21
8.7 Multi-Drive Mode Explicit Messaging
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 module and up to five drives. The parameters in
the module and each of the drives are offset by 400 hex (1024
decimal).
Figure 8.11 – Drive 4 Control Routine (Continued)
Explicit Messaging Example
13
PerformParameterRead4
EN
DN
ER
Type - CIP Generic
Message Control ParameterRDMessage4
...
MSG
Explicit Messaging Example
14
PerformParameterWrite4
EN
DN
ER
Type - CIP Generic
Message Control ParameterWRMessage4
...
MSG
15 Return
RET
(End)
Drive 4 parameters are accessed by adding 21504 decimal (5400 hex) to the
desired parameter number. For example, to access Parameter 39 an Instance of
21543 (21504 + 39) is used.
Table 8.9 – Module Parameter Settings
Instance (Hex.) (Dec.) Device Parameter
4000 - 43FF 1384 - 17407 MDCOMM-ENET 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