MVI56E-MNETCR ♦ ControlLogix Platform
Reference
Modbus TCP/IP Multi-Client Enhanced Communications Module for Remote Chassis
User Manual
ProSoft Technology, Inc.
Page 113 of 161
Controller Tag
Data Type
Description
EventCmd.IP3
INT
Enter the fourth digit of the destination server's IP
address
EventCmd.ServPort
INT
Enter the TCP Service Port number (
0
-
65535
). Enter
502
for a MBAP message or
2000
for a MNET
message.
EventCmd.SlvAddrNode INT
Enter the Modbus slave node address (
1
to
247
). Enter
0
if not needed.
EventCmd.DBAddress
INT
Enter the module internal database address to
associate with the command.
EventCmd.Count
INT
Enter the number of words or bits to be transferred by
the Client.
EventCmd.Swap
INT
Enter the swap code for the data. This function is only
valid for function codes 3 and 4.
EventCmd.MBFunction
INT
Enter the Modbus function code for the command
EventCmd.Address
INT
Enter the database address for the server.
Client Status Blocks (3000 to 3029)
Client status data for a specific Client can be requested and returned in a special
Client Status block. The status data contained in the Client Status block is
different from the status data contained in the normal data transfer blocks.
Block Request from Processor to Module
Word Offset
Description
Length
0
3000 to 3029 (last digits indicate which Client to consider)
1
1 to 41
Spare
40
Block Response from Module to Processor
Word Offset
Description
Length
0
Write Block ID
1
1
3000 to 3029 number requested
1
2 to 11
Client status data
10
12 to 27
Command error list data for Client
16
28 to 40
Reserved
13
41
3000 to 3029
1
Client Status Data
Word Offset
Client Status
2
Total number of command list requests
3
Total number of command list responses
4
Total number of command list errors
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