72
Process Image
WAGO-I/O-SYSTEM 750
753-668/000-004 4FAI 0/4-20 mA Diff PROFIsafe
Manual
Version 1.0.0, valid from HW/SW Version 01/01
5.9.2
Format Siemens S7 with Parameterizable Substitute Values
5.9.2.1
Measurement Range 0
… 20 mA
Table 42: Siemens S7 with Parameterizable Substitute Values, 0
… 20 mA
Measurement
Range
Unit
Channel
Status
Range
Decimal
Hexadecimal
> 25 mA
Parameterizable substitute
value
2
0
Overload
25
…
> 23.518 mA
Parameterizable substitute
value
2
0
Overflow
23.518
…
20.0007 mA
32511
…
27649
0x7EFF
…
0x6C01
1
Overrange
20
…
> 0.4442 mA
27648
…
614
0x6C00
…
0x266
1
Nominal range
< 0.4442
…
0 mA
Parameterizable substitute
value
1,2
0
Wire break
1
Module reports wire break
2
In “S7 F/FH Systems” an extra substitute value is output for this value in case of overload,
overflow or wire break in the safety program.
In “S7 Distributed Safety”, the substitute value 0 is provided for the safety program instead of the
parameterizable substitute value (overload).
5.9.2.2
Measurement Range 4
… 20 mA with Wire Break Detection Enabled
Table 43: Siemens S7 with Parameterizable Substitute Values, 4
… 20 mA, Wire Break Detection
Enabled
Measurement
Range
Unit
Channel
Status
Range
Decimal
Hexadecimal
> 25 mA
Parameterizable substitute
value
2
0
Overload
25
…
> 22.814 mA
Parameterizable substitute
value
2
0
Overflow
22.814
…
20.0006 mA
32511
…
27649
0x7EFF
…
0x6C01
1
Overrange
20
…
4.0005787 mA
27648
… 1 0x6C00 … 0x1
1
Nominal range
4.00 mA
0
0x0
3.9995
…
3.6000 mA
−1 … −691
0xFFFF…
0xFD4D
1
Underrange
< 3.6000 mA
Parameterizable substitute
value
1,2
0
Wire break
1
Module reports wire break
2
In “S7 F/FH Systems” an extra substitute value is output for this value in case of overload,
overflow or wire break in the safety program.
In “S7 Distributed Safety”, the substitute value 0 is provided for the safety program instead of the
parameterizable substitute value (overload).