Omron ZG User Manual page 120

Output of Measurement Values
Measurement values are handled as integers matched to the number of digits past the
decimal point setting, and are converted to a 16-bit binary number (2's complement)
before they are output. Bit expressions are output using minus logic ("1" when open
output is ON).
< Output Format >
b15 b14 b13 b12 b11 b10
< Output of Measurement Values (example) >
The following shows an example where the number of digits past the decimal point is set
to "3".
Output of measurement standby status
b15 b14 b13 b12 b11 b10
0 0 0
Output at "no measurement target present" error
b15 b14 b13 b12 b11 b10
1 1 1
When measurement value is "+1.234"
b15 b14 b13 b12 b11 b10
0 0 0
When measurement value is "-1.234"
b15 b14 b13 b12 b11 b10
1 1 1
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Communication Using I/O Signals
b9 b8
Binary data of the measurement value
b9 b8
0 0 0 0 0
b9 b8
1 1 1 1 1
b9 b8
0 0 1 0 0
b9 b8
1 1 0 1 1
b7 b6 b5 b4 b3
b7 b6 b5 b4 b3
0 0 0 0 0
b7 b6 b5 b4 b3
1 1 1 1 1
b7 b6 b5 b4 b3
1 1 0 1 0
b7 b6 b5 b4 b3
0 0 1 0 1
b2 b1 b0
b2 b1 b0
0 0 0
b2 b1 b0
1 1 1
b2 b1 b0
0 1 0
b2 b1 b0
1 1 0
ZG User's Manual