750-841 WAGO, 750-841 Datasheet - Page 261

• 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

WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
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More information
Please refer to the respective SCADA product manual for a detailed
description of the particular software operation.
Input code: MODBUS function code
Read the first digital input:
Read the second analog input:
Example of the MODBUS function code
In the case of SCADA Software Lookout from National Instruments the
MODBUS function codes are used with a 6 bit coding, whereby the first bit
represents the function code:
The following five digits specify the channel number of the consecutively
numbered digital or analog input and/or output channels.
Examples:
Application example:
Thus, the digital input channel 2 of the above node "Measuring data" can be
read out with the input: "Measuring data. 0 0000 2".
Fig. 6-1: Example of user software
0
1
3
4
FC1
FC2
FC3
FC4
read coils
read input discretes
read multiple registers
read input registers
Visualization and control using SCADA software
i.e. 3 0000 2
i.e. 0 0000 1
Reading of several input bits
Reading of several input bits
Reading of several input registers
Reading of an individual input register
Application Examples
G012913e
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