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Programmable Field Bus Controller 750-833
Configuration and Parameterization of the Modules
3.8 Configuration and Parameterization of the Modules
3.8.1 Process Data Channel of the Bus Controller
The process data channel , which has been parameterized as PFC interface and
which requires 2-byte I/O data, is used for communication between WAGO-
I/O-PRO and the run-time system of the field bus controller as described
before. The register interface that has been implicitly allocated for the
identification "750-833 4-byte process data channel " and that must be
explicitly activated for "750-833 2-byte process data channel "is not usable by
the user and should not be used. If none of these interfaces are used, the
process data channel can be projected with a length of zero.
(
750-833 No process data channel
Module
750-833 no process data channel
750-833 2 byte process data channel
750-833 4 byte process data channel
Process Image
Internal bus
PROFIBUS DP
PFC (CPU)
Parameter
Process data interface
Parameter
Offset
0
1
2
PFCIntf
RegIntf
italic
*)
Default setting
Value
PFC interface
Register interface
*)
Information
7
6
5
4
1
0
0
0
7
6
5
4
0
0
1
0
7
6
5
4
0
0
0
0
0
PFC interface switched off
0
1
PFC interface switched on (default)
0
Register interface switched off (default)
1
1
Register interface switched on
Cannot be changed
).
Identification
hex
0x00
0xB1
0xB3
*)
Meaning
The process data interface is for
*)
- program transfer
- register communication
Default settings
3
2
1
0
0
0
0
0
3
2
1
0
0
0
0
1
3
2
1
0
0
0
Reg
PFC
Intf
Intf
Identification
dec
0
177
179
Input Image
Output Image
in [Byte]
0
*)
0
/ 2 / 4
0
Default settings
WAGO-I/O-SYSTEM 750
Bus System
in [Byte]
0
*)
0
/ 2 / 4
0
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