Technical data

258 • I/O Modules
Process Data Architecture for MODBUS/TCP
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
Input Process Image
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Diagnostic
bit S 3
Channel 2
Diagnostic
bit S 2
Channel 2
Diagnostic
bit S 1
Channel 1
Diagnostic
bit S 0
Channel 1
Output Process Image
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
not used not used
controls
DO 2
Channel 2
controls
DO 1
Channel 1
4 Channel Digital Output Modules
750-504, -516, -519, -531, 753-504, -516, -531, -540
Output Process Image
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
controls
DO 4
Channel
4
controls
DO 3
Channel
3
controls
DO 2
Channel
2
controls
DO 1
Channel
1
4 Channel Digital Output Modules with Diagnostics and Input Process
Data
750-532
The 750-532 digital output modules have a diagnostic bit for each output
channel. When an output fault condition occurs (i.e., overload, short circuit, or
broken wire), a diagnostic bit is set. The diagnostic data is mapped into the
Input Process Image, while the output control bits are in the Output Process
Image.
Input Process Image
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Diagnos-
tic bit S
3
Channel
4
Diagnos-
tic bit S
2
Channel
3
Diagnos-
tic bit S
1
Channel
2
Diagnos-
tic bit S 0
Channel
1
Diagnostic bit S = '0' no Error
Diagnostic bit S = '1' overload, short circuit, or broken wire