Analog Input Modules - WAGO I/O System 750 Series Manual

The output modules seize 8 Instances in Class (0x65).
controls
Channel
And the output modules seize 8 Instances in Class (0x66).

5.2.3 Analog Input Modules

The hardware of an analog input module has 16 bits of measured analog data
per channel and 8 bits of control/status. However, the DeviceNet cou-
pler/controller does not have access to the 8 control/status bits. Therefore, the
DeviceNet coupler/controller can only access the 16 bits of analog input data
per channel mapped in Intel format in the Input Process Image.
When digital input modules are also present in the node, the analog input data
is always mapped into the Input Process Image in front of the digital data.
Each input channel seizes one Instance in the Analog Input Point Object
(Class 0x67).
1 Channel Analog Input Module
750-491, (and all variations)
The input modules represent 2x2 bytes and seize 2 Instances in Class (0x67).
WAGO-I/O-SYSTEM 750
DeviceNet
Bit 7 Bit 6 Bit 5
controls controls
DO 8 DO 7 DO 6
Channel Channel
8 7 6
Instance Byte Destination
n
n+1
Output Process Image
Bit 4 Bit 3
controls controls
DO 5 DO 4
Channel Channel
5 4
Input Process Image
D0
D1
D2
D3
I/O Modules • 111
Bit 2 Bit 1 Bit 0
controls controls controls
DO 3 DO 2 DO 1
Channel Channel Channel
3 2
Remark
Measured Value U
D
Measured Value U
ref
1