Omron NT - SUPPORT TOOL FOR WINDOWS V4 Operation Manual page 247

Graphs
234
When the following values are specified 100%, 0%, –100% in an analogue meter
with semi-circle shape:
Analogue
Meter
Value referred to: 3000
Value referred to: 1500
Value referred to: 0
Value referred to: –1000
Value referred to: –2000
If the 100% value, 0% value, and –100% value are set using numeral memory
table entries as indicated below, the percentage value of the reference value is
calculated according to the value stored at the specified address.
Analogue
Meter
Section 6-9
Numeral
Memory
Table
0
1
3000
2
0
3
4 –2000
5