Figure 20: "Calibration" Parameters; Table 35: Calibration Parameters - WAGO 750 Series Manual

WAGO-I/O-SYSTEM 750
750-471 4AI U/I Diff Galv

Figure 20: "Calibration" Parameters

Table 35: Calibration Parameters

Selection/Control Field Possible settings
User calibration
[Start Calibration]
Process value
Show values in
hexadecimal
When user calibration is switched on, the user can
enter values for offset and gain.
The values can be represented and edited as decimals
or hexadecimals. If the user calibration is deactivated,
the offset and gain values cannot be changed.
Offset The offset value causes a zero offset of the
process value (shift along the Y axis). The
value entered must fall within the range −32768
to 32767.
Gain The gain value is used as a gain factor applied
to the process value.
The value entered must fall within the range
−2.0000 to 1.9999.
The resolution 1/16384 has already been taken
into account for the decimal entry.
An automatic calibration is started by clicking the
button [Start Calibration]. A dialog prompts the user to
enter a reference voltage or a reference current. Based
on this voltage or current, correction values are
calculated as needed. These correction values are
permanently written into the I/O module after the
calibration. This process can be repeated any number
of times.
The process value can be constant or deliberately kept
changeable; it can be represented as a fixed decimal
value with unit or as a hexadecimal to correspond with
the measurement range.
The hexadecimal representation can be switched on or
off.
Commissioning 61
Manual
Version 1.0.0