Data Formats Of Current Inputs/Outputs - Wieland ricos Manual

Appendix

4.2.2 Data formats of current inputs/outputs

0...20 mA in two's complement
Measured value Binary
15 14 13 12 11 10 9
20 mA 0
5 mA 0
0 mA 0
0...20 mA µ
in A (0...20000)
Measured value Binary
15 14 13 12 11 10 9
20 mA 0
10 mA 0
0 mA 0
From bus coupler software version 00.50, the display format can also be set to
SIMATIC S5 format:
0...20 mA SIMATIC S5 format for inputs (module 4AI/4AO 20mA)
Measured value Binary display
15
20.000 mA 0
19.992 mA 0
16.000 mA 0
4.000 mA 0
3.992 mA 0
3.000 mA 0
1.179 mA 0
1.171 mA 0
0.000 mA 0
The measuring range of 4 ... 20 mA is resolved at 2048 units with an interval of
512 ... 2560. An overflow signal is implemented under 1.179 mA by the software.
114
0 0 0 1 1 1
0 0 0 0 1 0
0 0 0 0 0 0
1 0 0 1 1 1
1 0 0 1 1 1
0 0 0 0 0 0
14 13 12 11 10
1 0 1 0 0
1 0 0 1 1
1 0 0 0 0
0 0 1 0 0
0 0 0 1 1
0 0 0 1 1
0 0 0 0 1
0 0 0 0 1
0 0 0 0 0
© 2002 Wieland Electric GmbH Version 2.4* (December 2002)
8 7 6 5 4 3
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
8 7 6 5 4 3
0 0 0 1 0 0
0 0 0 0 1 0
0 0 0 0 0 0
9 8 7 6 5 4
0 0 0 0 0 0
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
0 0 0 0 0 0
0 0 1 0 1 1
0 0 1 0 1 1
0 0 0 0 0 0
T Status bit always = 0
F Error bit always = 0
Ü Overflow bit < 1.179 mA = 1 and
>= 20 mA = 1
Part no. 05.591.3389.0
Dec. Hex.
2 1 0
1 1 1 4095 0FFF
0 0 0 1024 0400
0 0 0 0 0
Dec. Hex.
2 1 0
0 0 0 20000 4E20
0 0 0 10000 2710
0 0 0 0 0
T F Ü Unit
3 2 1 0
0 0 0 1 2560
1 0 0 0 2559
0 0 0 0 2048
0 0 0 0 512
1 0 0 0 511
0 0 0 0 384
1 0 0 0 151
0 0 0 1 150
0 0 0 1 0
© 2002 Wieland Electric GmbH