Use Of The Module 750-643 With Programmable Fieldbus Controllers - WAGO 750-643 Manual

20 • 750-643 [MP-Bus Master Module]
Data transfer
MSG_CODE
K2F_COM_T2
K2F_FM

2.1.1.8.3 Use of the module 750-643 with programmable fieldbus controllers

Appropriate IEC 61131-3 function blocks and libraries are available for
WAGO-I/O-PRO 32 and WAGO-I/O-PRO CAA in order to read out the
process data of the MP-Bus Master Module with a programmable fieldbus
controller (PFC).
In the WAGO-I/O-PRO application, the "FbMpBusMaster" function module
accepts the data packets from several module bus cycles (module bus
communication).
After the packets have been assembled to form a telegram, this module checks
the telegram for errors (protocol security).
In order that the master can communicate with the slaves, each slave must be
assigned a unique address. The nodes are addressed with the
"FbMpBusAddressing" module.
Further function modules subsequently undertake the evaluation and
processing of the telegram content.
DPID DATA
ERR=0
0 D0
0 D1-4
0 D5
1 D0-D4
5
1 D5
ERR=1
0 D0
0 D1
0 D2-D4
0 D5
1 D0-D4
1 D5
ERR=0
0 D0
0 D1-4
0 D5
1 D0-D4
1 D5
ERR=1
6
0 D0
0 D1
0 D2
0 D3-D4
0 D5
1 D0-D4
1 D5
Description
Communications request for request-response telegrams.
The module returns the transmitted MP-Bus command byte
with the reply.
Master command sent.
MP-Bus telegram according to specification without length and
cross parity.
TNO
MP-Bus telegram according to specification without length and
cross parity.
TNO
Error number
Extended error status
not used
TNO
not used
TNO
Module test (transparent MP-Bus communication).
Function macro ID.
Macro-specific result parameters.
TNO
Macro-specific result parameters.
TNO
Error number
Extended error status
Function macro ID.
not used
TNO
not used
TNO
WAGO-I/O-SYSTEM 750
I/O Modules