Rockwell Automation 56AMXN/B ControlLogix AutoMax Comm Module - Manual (Page 49)

AutoMax DCSNet/RE RIO Module Page 49
Publication number 56AMXN-UM002A-EN-P November 2002
Message
Type CIP generic
Service Type Custom
Service Code 37h
Class (hex) C4h
Instance 1 for registers 0-31 (master or slave)
2 for registers 32-63 (master or slave)
Attribute (hex) leave blank
Source
Element enter source tag name
Source
Length (bytes) 2 + Number of drops * 2
Destination enter destination tag name
Table 18 Read Multiple Drops Parameters
Message format in the source tag
# of drop
First drop #
Second drop #
…
Last drop #
The Reply data consists of
Data for the first drop, 32 words
Data for the second drop, 32 words
…
Data for the last drop, 32 words
up to a maximum of 7 drops
Number of
drops
Minimum destination
size, INTs
1 32
2 64
3 96