Digital Input Modules; Channel Digital Input Module With Diagnostics; Channel Digital Input Modules; Table 419: 1 Channel Digital Input Module With Diagnostics - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-882 Media Redundancy ETHERNET Controller
13.3.1

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 I/O modules have an additional diagnostic bit per channel in the
input process image. The diagnostic bit detects faults (e.g., wire breakage,
overloads and/or short circuits). For some I/O modules, the data bits also have
be evaluated with the set diagnostic bit.
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.
1 sub index is assigned for each 8 bit.
Each input channel seizes one Instance in the Discrete Input Point Object (Class
0x65).
13.3.1.1

1 Channel Digital Input Module with Diagnostics

750-435

Table 419: 1 Channel Digital Input Module with Diagnostics

Input Process Image
Bit 7
The input modules seize 2 Instances in Class (0x65).
13.3.1.2

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 420: 2 Channel Digital Input Modules

Input Process Image
Bit 7
The input modules seize 2 Instances in Class (0x65).
Bit 6 Bit 5 Bit 4
Bit 6 Bit 5 Bit 4
I/O Modules 369
Bit 3 Bit 2 Bit 1
Diagnostic
Bit 3 Bit 2 Bit 1
Data bit
DI 2
Channel 2
Bit 0
Data bit
bit
DI 1
S 1
Bit 0
Data bit
DI 1
Channel 1
Manual
1.5.0