ProSoft Technology MVI56E-MNETC - Manual (Page 123)

MVI56E-MNETC ♦ ControlLogix Platform Reference
Modbus TCP/IP Client Enhanced Communication Module User Manual
ProSoft Technology, Inc. Page 123 of 183
February 3, 2013
Controller Tags
To issue a Client Status block request, enter the appropriate values in the
following members of the MNETC.STATUS controller tag in the ladder logic.
Controller Tag Data Type Description
ClientID INT Enter the Client (0-29) to request status data for.
ClientStatsTrigger BOOL Set the value of this tag to 1 to trigger the Client
Status block request.
Server Status Block (3100)
Server status data for a specific server can be requested and returned in a
special Server Status block. The status data contained in the Server 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 3100 1
1 to 247 Spare 247
Block Response from Module to Processor
Word Offset Description Length
0 Reserved 1
1 Write Block ID 1
2 3100 1
3 to 5 Spare 3
6 to 9 MNET server status data 4
10 to 15 Spare 6
16 to19 MBAP server status data 4
20 to 22 Spare 3
23 to 248 Reserved 226
249 3100 1
Server Status Data
Word Offset Server Status
6 Total number of MNET command list requests
7 Total number of MNET command list responses
8 Total number of MNET command list errors sent
9 Total number of MNET command list errors received
10 to 15 Not used