I/O modules • 171
Analog Inputs 750-456
Modular I/O System
ETHERNET TCP/IP
750-456
Signal voltage
±10V
Value
Binary
Hex.
Dec.
Status
> 10 V
0111 1111 1111 1111
7F FF
32767
42
10
0111 1111 1111 XXXX
7F FX
32760
0
5
0100 0000 0000 XXXX
40 0X
16384
0
2.5
0010 0000 0000 XXXX
20 0X
8192
0
1.25
0001 0000 0000 XXXX
10 0X
4096
0
0.0781
0000 0001 0000 XXXX
01 0X
256
0
0.0049
0000 0000 0001 XXXX
00 1X
16
0
0
0000 0000 0000 XXXX
00 0X
0
0
-2.5
1110 0000 0000 XXXX
E0 0X
57344
0
-5
1100 0000 0000 XXXX
C0 0X
49152
0
-7.5
1010 0000 0000 XXXX
A0 0X
40960
0
-10
1000 0000 0000 XXXX
80 0X
32768
0
< -10 V
1000 0000 0000 0000
80 00
32768
41
Numerical format for Siemens function blocks
For fieldbus masters with the ability to evaluate the status information within
the data word, i.e. Siemens format.
The status information is contained in Bit B0 .. B2.
The digitized input is placed at the position Bit B3 .. B15.
750-456/ 000-001 (or /000-200)
Signal voltage
±10V
Value
Binary
X E O*
)
Hex.
Dec.
>10
0111 1111 1111 1
0 0 1
7F F9
32761
10
0111 1111 1111 1
0 0 0
7F F8
32760
5
0110 0000 0000 0
0 0 0
60 00
24576
2.5
0101 0000 0000 0
0 0 0
50 00
20480
1.25
0100 1000 0000 0
0 0 0
48 00
18432
0.0049
0100 0000 0000 1
0 0 0
40 08
16392
0
0100 0000 0000 0
0 0 0
40 00
16384
-2.5
0011 0000 0000 1
0 0 0
30 08
12296
-5
0010 0000 0000 0
0 0 0
20 00
8192
-7.5
0001 0000 0000 0
0 0 0
10 00
4096
-10
0000 0000 0000 1
0 0 0
00 00
8
<-10
0000 0000 0000 0
0 0 1
00 01
1
*
)
X : without meaning, E : short circuit or open circuit, O : overflow