40
Process Image
WAGO-I/O-SYSTEM 750
750-494 3-Phase Power Measurement Module
Manual
Version 1.2.0
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5
Process Image
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The I/O module provides, on 1 logical channel, 24 bytes input and 24 bytes output
process data to a fieldbus coupler/controller. These consist of 8 control/status
bytes and 16 data bytes.
Notice that the process data image depends on the used fieldbus coupler/
controller!
Mapping the process data into the process image is specific for the fieldbus
coupler/controller used. You will find both this information and the specific
configuration of the relevant control/status bytes in the manual of the
coupler/controller, section "Fieldbus Specific Configuration of Process Data"
which describes the process image.
5.1
Overview of Process Data
Byte Output data
Input data
0
Control word
Status word
1
2 Expanded control word 1
Expanded status word 1
3
4 Expanded control word 2
Expanded status word 2
5
6
Expanded control word 3
Expanded status word 3
7
8
---
Process value 1
9
10
11
12
---
Process value 2
13
14
15
16
---
Process value 3
17
18
19
20
---
Process value 4
21
22
23