Standard Data Format - WAGO 750-454 Manual

12 • 750-454 [2 AI 4-20 mA, Differential Inputs]
Process Image
The manufacturing number is part of the lateral marking on the module
enclosure.
Some fieldbus systems can process input channel status information by means
of a status byte.
This status byte can be displayed via the starting tool WAGO-I/O-CHECK 2.
However, processing via the coupler / controller is optional, which means that
accessing or parsing the status information depends on the fieldbus system.
Attention
The representation of the process data of some I/O modules or their variations
in the process image depends on the fieldbus coupler/-controller used. Please
take this information as well as the particular design of the respective
control/status bytes from the section "Fieldbus Specific Design of the Process
Data" included in the description concerning the process image of the
corresponding coupler/controller.

2.1.1.7.1 Standard Data Format

For the standard module 750-454 and the variations 750-454/000-001 the
input current ranging from 4 mA to 20 mA is scaled on the numerical values
ranging from 0x0000 bis 0x7FF9.
**
Process values of module 750-454, 750-454/000-001
Input current
4 mA - 20 mA Measured value
<0
<4 - ∆** )
'0000.0000.0000.0 011'
<4 '0000.0000.0000.0 000'
4 '0000.0000.0000.0 000'
6 '0001.0000.0000.0 000'
8 '0010.0000.0000.0 000'
10 '0011.0000.0000.0 000'
12 '0100.0000.0000.0 000'
14 '0101.0000.0000.0 000'
16 '0110.0000.0000.0 000'
18 '0111.0000.0000.0 000'
20 '0111.1111.1111.1 000'
>20 '0111.1111.1111.1 001'
>20 + ∆** )
'0111.1111.1111.1 001'
)
* status bits: X = not used, F = short-circuit, Ü = oversize
) ∆ = 0,1 ... 2,0 mA
numerical value
binary
hex.
)
* X F Ü
not possible (Reverse voltage protection)
0x0003
0x0000
0x0000
0x1000
0x2000
0x3000
0x4000
0x5000
0x6000
0x7000
0x7FF8
0x7FF9
0x7FF9
Status- LED
byte Error
dec.
hex. AI 1, 2
3 0x41 on
0 0x00 off
0 0x00 off
4096 0x00 off
8192 0x00 off
12288 0x00 off
16384 0x00 off
20480 0x00 off
24576 0x00 off
28672 0x00 off
32760 0x00 off
32761 0x42 off
32761 0x42 on
WAGO-I/O-SYSTEM 750
I/O Modules