WAGO 750-341 Manual page 51

2 Channel Digital Input Modules with Diagnostics
750-419, -421, -424, -425
Bit 7
2 Channel Digital Input Module with Diagnostics and Output Process
Data
750-418
The 750-418 digital input module supplies a diagnostic and acknowledge bit
for each input channel. If a fault condition occurs, the diagnostic bit is set.
After the fault condition is cleared, an acknowledge bit must be set to re-
activate the input. The diagnostic data and input data bit is mapped in the
Input Process Image, while the acknowledge bit is in the Output Process
Image.
Bit 7
Bit 7
4 Channel Digital Input Modules
750-402, -403, -408, -409, -414, -415, -422, -423, -428, -432, -433
Bit 7
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Input Process Image
Bit 6 Bit 5 Bit 4
Input Process Image
Bit 6 Bit 5 Bit 4
Output Process Image
Bit 6 Bit 5 Bit 4
Input Process Image
Bit 6 Bit 5 Bit 4
Fieldbus Coupler 750-341
Bit 3 Bit 2
Diagnostic Diagnostic
bit S 2 bit S 1
Channel 2 Channel 1
Bit 3 Bit 2
Diagnostic Diagnostic
bit S 2 bit S 1
Channel 2 Channel 1
Bit 3 Bit 2
Acknowled Acknowled
gement bit gement bit
Q 2 Q 1
Channel 2 Channel 1
Bit 3 Bit 2
Data bit Data bit
DI 4 DI 3
Channel Channel
4 3
• 47
Process image
Bit 1 Bit 0
Data bit Data bit
DI 2 DI 1
Channel Channel
2 1
Bit 1 Bit 0
Data bit Data bit
DI 2 DI 1
Channel Channel
2 1
Bit 1 Bit 0
0 0
Bit 1 Bit 0
Data bit Data bit
DI 2 DI 1
Channel Channel
2 1