Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 390

Analog Output Terminals
User Scaling
Offset Compensation
User scaling allows analog output values to be scaled to user-defined values.
The conversion values for 100% and 0% are set using the Configurator.
Input 0 to 5 V
range
100% Set using Configurator (–28,000 to 28,000)
0% Set using Configurator (–28,000 to 28,000)
Off-wire ---
100% value set by
user (scaling point 2)
0% value set by user
(scaling point 1)
Note Reverse scaling, where the 0% scaling value is higher than the 100% scaling
value, is also supported.
Offset compensation is used to compensate for error that occurs during scal-
ing. The offset amount is added to the scaled line before processing, as
shown in the following diagram. The offset (error) value can be input between
28,000 and 28,000, but if underflow or overflow occurs in the scaled line, the
–
100% or 0% output will not be possible. The High Limit is 7FFE hex and the
Low Limit is 8000 hex.
Note The offset value can be set even when using default scaling.
Upper limit 7FFE
100% scaling value
0 to 10 V 1 to 5 V
--- 7FFF hex
Scaling value
Output conversion
0%
Cannot output 100%
value even if set to
7FFF)
0%
Section 7-5
–10 to 0 to
10 V 20 mA
--- --- 7FFF hex
Output signal range
100%
Scaling line
Offset value
(–28,000 to
+28,000)
Output (signal) range
100%
4 to
20 mA
369