I/O Module Configuration; Analog Inputs - ABB ScreenMaster RVG200 Operating Instructions Manual

ScreenMaster RVG200
Paperless recorder

7.10 I/O module configuration

Fig. 7.16 I/O module configuration
Note. The recorder detects the type of module fitted in each position automatically.

7.10.1 Analog inputs

Input A1(to D6)
Input Adjust
Actual value
Desired value
112
Manually fine-tune inputs to remove errors.
Note. If the analog input type is changed (see page 90), the configuration
must be saved to the current configuration before commencing input
adjustment.
2 methods of input calibration are provided:
Input adjust –
Sensor calibration –
Input
Uncalibrated
calibration
input
1. Adjust the process or simulated input signal to a known value
below 50% of the engineering range.
2. If (in engineering units) is different from expected, set
Actual Value
to the correct value (
Desired value
values are calculated automatically).
3. Repeat steps 1 and 2 for a value above 50% of the engineering
range.
4. Repeat steps 1 to 3 for each input.
provides offset and span adjustment to remove
process or system scale errors.
provides an offset adjustment to remove known
sensor errors.
Sensor
calibration
Offset adjust
7 Configuration
Calibrated
input
and
Span adjust
OI/RVG200-EN