Details concerning Explicit Exchange Language Objects for a Modbus Function
(Original Document)
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The table below shows the language objects for Modbus communications in master or slave mode. These objects are not integrated into the IODDTs.
List of Explicit Exchange Objects in Master or Slave mode
The table below shows the explicit exchange objects:
Address
Type
Access
Meaning
%MWr.m.c.4
INT
R
Number of responses received correctly.
%MWr.m.c.5
INT
R
Number of responses received with CRC error.
%MWr.m.c.6
INT
R
Number of responses received with an exception code in slave mode.
%MWr.m.c.7
INT
R
Number of messages sent in slave mode.
%MWr.m.c.8
INT
R
Number of messages sent without response in slave mode.
%MWr.m.c.9
INT
R
Number of responses received with a negative acknowledgement.
%MWr.m.c.10
INT
R
Number of messages repeated in slave mode.
%MWr.m.c.11
INT
R
Number of detected character errors.
%MWr.m.c.24.0
BOOL
RW
Reset of detected error counters.