26
Process Image
WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
4
Process Image
Mapping of process data in the process image of fieldbus systems
The representation of the process data of some I/O modules or their variants in the
process image depends on the fieldbus coupler/controller used. Please take this
information from the section “Fieldbus Specific Design of the Process Data”
included in the description concerning the process image of the corresponding
fieldbus coupler/controller.
Table 16: Output Bits
Bit 3
Bit 2
Bit 1
Bit 0
DO 4
DO 3
DO 2
DO 1
DO 1
Signal state DO 1 – Digital output channel 1
DO 2
Signal state DO 2 – Digital output channel 2
DO 3
Signal state DO 3 – Digital output channel 3
DO 4
Signal state DO 4 – Digital output channel 4
Table 17: Input Bits
Bit 3
Bit 2
Bit 1
Bit 0
DIAG 4
DIAG 3
DIAG 2
DIAG 1
DIAG 1
Diagnostic state DO 1 – Digital output channel 1
DIAG 2
Diagnostic state DO 2 – Digital output channel 2
DIAG 3
Diagnostic state DO 3 – Digital output channel 3
DIAG 4
Diagnostic state DO 4 – Digital output channel 4
Table 18: Evaluation matrix
Status bit (0…3) wire break/
short circuit
Control bit (0 … 3)
Signal status
Explanation
0
0
Signal status “0”
0
1
Signal status “1”
1
0
Wire break
1
1
Short circuit/overload