Siemens S5-155U System Manual page 444

The 465 Analog Input Module
Digital measured-value
representation as value and
sign
Units Input
Voltage 7 6 5
11
in mV S 2 2
≥4096
100.0 0 1 1
4095 99.976 0 1 1
2049 50.024 0 1 0
2048 50.0 0 1 0
2047 49.976 0 0 1
1024 25.0 0 0 1
1023 23.976 0 0 0
1 0.024 0 0 0
0 0
0 0.0 0
-0 0.0 1 0 0
-1 -0.024 1 0 0
-1023 - 24.976 1 0 0
-1024 - 25.0 1 0 1
-2047 - 49.976 1 0 1
-2048 - 50.0 1 1 0
-2049 - 50.024 1 1 0
-4095 - 99.976 1 1 1
-4096 -100.0 1 1 1
9 - 72
(rated input range ± 50 mV)
Byte 0
4 3 2 1 0 7
10 9 8 7 6 5
2 2 2 2 2 2
1 1 1 1 1 1
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
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
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
1 1 1 1 1 1
A = Active bit
E = Error bit
OV = Overflow bit
S = Sign
12
Bit 2 is interpreted as the sign.
Byte 1
6 5 4 3 2 1
4 3 2 1 0
2 2 2 2 A E
1 1 1 1 0/1 0/1 1
1 1 1 1 0/1 0/1
0 0 0 1 0/1 0/1
0 0 0 0 0/1 0/1
1 1 1 1 0/1 0/1
0 0 0 0 0/1 0/1
1 1 1 1 0/1 0/1
0 0 0 1 0/1 0/1
0 0 0 0 0/1 0/1
0 0 0 0 0/1 0/1
0 0 0 1 0/1 0/1
1 1 1 1 0/1 0/1
0 0 0 0 0/1 0/1
1 1 1 1 0/1 0/1
0 0 0 0 0/1 0/1
0 0 0 1 0/1 0/1
1 1 1 1 0/1 0/1
1 1 1 1 0/1 0/1 1
C79000-B8576-C109-03
0
OV
Overflow
0 Overrange
0
0
0
0
0
0
0 Rated range
0
0
0
0
0
0
0 Overrange
0
Overflow
System Manual