WAGO 750-643 Manual page 16

16 • 750-643 [MP-Bus Master Module]
Process data
DA
DR
FMA
ERR
MC0, MC1,
MC2, MC3
DPID
REG
0
DR
DA
MC0, MC1,
MC2, MC3
0
The data from the individual sensors are not mapped in the process image of
the connected controller, but are packed in the MP-Bus telegrams and
tunneled through to a function module in the application. This function
module decodes the telegrams so that the analogue or digital sensor data can
be subsequently evaluated and processed at application level.
The IEC application can be implemented in the connected programmable
fieldbus controller (PFC) of the fieldbus node with the WAGO-I/O-PRO or
WAGO-CAA programming tool.
Bit 7 Bit 6 Bit 5
MC3 MC2 MC1
Data Acknowledge (toggle mode). Confirmation that the new output data have been accepted.
Data Request (toggle mode). New input data are ready for acceptance.
Function macro active.
The returned message code has an error. In this case, the data D0-D9 are structured differently
depending on the error.
Message code (MSG_CODE).
Bit 7 Bit 6 Bit 5
REG 0
Partial packet ID, 0 = first partial packet, 1 = second partial packet.
0 = Process data exchange / 1 = Register communication.
Reserved
Bit 7 Bit 6 Bit 5
MC3 MC2 MC1
Data Request (toggle mode). New output data are ready for acceptance.
Data Acknowledge (toggle mode). Confirmation that the new input data have been accepted.
Message code (MSG_CODE).
Reserved
Extended status byte (S1)
Bit 4 Bit 3
MC0 ERR
Control byte (C0)
Bit 4 Bit 3
0 DPID 0
Extended control byte (C1)
Bit 4 Bit 3
MC0 0
Bit 2 Bit 1 Bit 0
FMA DR DA
Bit 2 Bit 1 Bit 0
0 0
Bit 2 Bit 1 Bit 0
0 DA DR
WAGO-I/O-SYSTEM 750
I/O Modules
0