208 • I/O modules
Analog Inputs 750-476, -478
Modular I/O System
ETHERNET TCP/IP
Numerical format
All analog values will be shown in a unit numerical format. The resolution for
750-476 and 750-478 is 15 Bit plus sign.
750-476, 750-478
Input voltage
Value
Status
LED
0-10V
±10V
Binary
Hex.
Dec.
(hex)
Error
E (1,2)
>11
>11
0111 1111 1111 1111
0x7FFF
32767
0x42
on
>10.5
>10.5
0111 1111 1111 1111
0x7FFF
32767
0x42
off
10
10
0111 1111 1111 1111
0x7FFF
32767
0x00
off
5
5
0100 0000 0000 0000
0x4000
16384
0x00
off
2.5
2.5
0010 0000 0000 0000
0x2000
8192
0x00
off
1.25
1.25
0001 0000 0000 0000
0x1000
4096
0x00
off
0.0781
0.0781
0000 0001 0000 0000
0x0100
256
0x00
off
0.049
0.049
0000 0000 0001 0000
0x0010
16
0x00
off
0.0003
0.0003
0000 0000 0000 0001
0x0001
1
0x00
off
0
0
0000 0000 0000 0000
0x0000
0
0x00
off
<-0.5
0000 0000 0000 0000
0x0000
0
0x41
off
<-1
0000 0000 0000 0000
0x0000
0
0x41
on
-5
1100 0000 0000 0000
0xC000
49152
0x00
off
-10
1000 0000 0000 0000
0x8000
32768
0x00
off
<-10.5
1000 0000 0000 0000
0x8000
32768
0x41
off
<-11
1000 0000 0000 0000
0x8000
32768
0x41
on
Status byte
Bit
7
6
5
4
3
2
1
0
Meaning
0
ERROR
res.
res.
res.
res.
Overrange
Underrange
ERROR
Error on input channel.
Overrange
The input signal is over the admissible measuring range.
Underrange
The input signal is under the admissible measuring range.
res.
Reserved, not currently used