750-491 [1 AI DMS]
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11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7 Process
Image
The bridge voltage bU
D
and -U
D
is output with a resolution of
500 nV/digit, so that 10 mV corresponds to an output value of 20000 in the
data bytes D0 and D1 of channel 1.
The supply voltage for the bridge is output with a resolution of 500 µV/digit,
so that 10 V corresponds to the output value 20000 in the data bytes D0 and
D1 of channel 2.
Process values of module 750-491
Numerical value
Signal
voltage U
D
binary
Status-
byte
LED
±15 mV
Output value
hex.
dec.
hex.
<ca.-15.5000 '0111.1111.1111.1111'
0x7FFF
32767
0x41
on
ca.-15.5000 '0000.0000.0000.0000' 0x0000 0 0x00
off
-15.0000 '1000.1010.1101.0000'
0x8AD0
-30000
0x00
off
-10.0000 '1011.0001.1110.0000'
0xB1E0
-20000
0x00
off
-5.0000 '1101.1000.1111.0000'
0xD8F0
-10000
0x00
off
-0.0005 '1111.1111.1111.1111' 0xFFFF -1 0x00 off
0.0000 '0000.0000.0000.0000' 0x0000 0 0x00
off
0.0005 '0000.0000.0000.0001' 0x0001 1 0x00
off
5.0000 '0010.0111.0001.0000' 0x2710
10000
0x00
off
10.0000 '0100.1110.0010.0000'
0x4E20
20000
0x00
off
15.0000 '0111.0101.0011.0000' 0x7530
30000
0x00
off
>ca.15.5000 '0111.1111.1111.1111'
0x7FFF
32767
0x41
on
Broken wire
'0111.1111.1111.1111'
0x7FFF
32767
0x41
on
Process values of module 750-491
Numerical value
Signal
voltage U
ref
binary
Status-
byte
LED
±10 V
Output value
hex.
dec.
hex.
<ca.–13.0000 '0111.1111.1111.1111' 0x7FFF
32767 0x41 on
-10.0000 '1011.0001.1110.0000'
0xB1E0
-20000
0x00
off
-5.0000 '1101.1000.1111.0000'
0xD8F0
-10000
0x00
off
-1.0000 '1111.1000.0011.0000'
0xF830
-2000 0x00
off
-0.0003 '1111.1111.1111.1111' 0xFFFF -1 0x00 off
0.0000 '0000.0000.0000.0000' 0x0000 0 0x00
off
0.0003 '0000.0000.0000.0001' 0x0001 1 0x00
off
1.0000 '0000.0111.1101.0000'
0x07D0
2000 0x00
off
5.0000 '0010.0111.0001.0000' 0x2710
10000
0x00
off
10.0000 '0100.1110.0010.0000'
0x4E20
20000
0x00
off
>ca.13.0000 '0111.1111.1111.1111'
0x7FFF
32767
0x41
on
