750-841 WAGO, 750-841 Datasheet - Page 223

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

5.2.3 Analog Input Modules
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
The hardware of an analog input module has 16 bits of measured analog data
per channel and 8 bits of control/status. However, the coupler/controller with
MODBUS/TCP does not have access to the 8 control/status bits. Therefore,
the coupler/controller with MODBUS/TCP can only access the 16 bits of
analog data per channel, which are grouped as words and 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.
1 Channel Analog Input Module
750-491, (and all variations)
2 Channel Analog Input Modules
750-452, -454, -456, -461, -462, -465, -466, -467, -469, -472, -474, -475, -476,
-477, -478, -479, -480, -481, -483, -485, -492, (and all variations),
753-452, -454, -456, -461, -465, -466, -467, -469, -472, -474, -475, -476, -477,
-478, -479, -483, -492, (and all variations)
Offset
Offset
0
1
0
1
High Byte
High Byte
D1
D3
D1
D3
Byte Destination
Byte Destination
Low Byte
Low Byte
Process Data Architecture for MODBUS/TCP
Input Process Image
Input Process Image
D0
D2
D0
D2
Measured Value Channel 1
Measured Value Channel 2
Measured Value U
Measured Value U
Remark
Remark
I/O Modules
ref
D
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