Digital Input Modules; Channel Digital Input Module With Diagnostics; Channel Digital Input Modules; Table 260: 1 Channel Digital Input Module With Diagnostics - WAGO I/O SYSTEM 750 Manual

398 Appendix
15.1.1

Digital Input Modules

Digital input modules supply one bit of data per channel to specify the signal state
for the corresponding channel. These bits are mapped into the Input Process
Image.
Some digital modules have an additional diagnostic bit per channel in the Input
Process Image. The diagnostic bit is used for detecting faults that occur (e.g., wire
breaks and/or short circuits).
When analog input modules are also present in the node, the digital data is always
appended after the analog data in the Input Process Image, grouped into bytes.
15.1.1.1

1 Channel Digital Input Module with Diagnostics

750-435

Table 260: 1 Channel Digital Input Module with Diagnostics

Input Process Image
Bit 7
15.1.1.2

2 Channel Digital Input Modules

750-400, -401, -405, -406, -410, -411, -412, -427, -438, (and all variations),
753-400, -401, -405, -406, -410, -411, -412, -427

Table 261: 2 Channel Digital Input Modules

Input Process Image
Bit 7
15.1.1.3 2 Channel Digital Input Module with Diagnostics
750-419, -421, -424, -425,
753-421, -424, -425

Table 262: 2 Channel Digital Input Module with Diagnostics

Input Process Image
Bit 7
Bit 6 Bit 5
Bit 6 Bit 5
Bit 6 Bit 5
750-8208 PFC200 CS 2ETH RS CAN DPM
Bit 4 Bit 3
Bit 4 Bit 3
Bit 4 Bit 3
Diagnostic Diagnostic
bit S 2 bit S 1
Channel 2 Channel 1
Version 1.1.0, valid from FW Version 02.06.20(09)
WAGO-I/O-SYSTEM 750
Bit 2 Bit 1
Diagnostic
Data bit
bit
S 1
Bit 2 Bit 1
Data bit Data bit
DI 2
Channel 2 Channel 1
Bit 2 Bit 1
Data bit Data bit
DI 2
Channel 2 Channel 1
Manual
Bit 0
DI 1
Bit 0
DI 1
Bit 0
DI 1