Dac Calibration - WAGO 750-563 Manual

2.1.1.8.5 Step 5 – Y
This level serves to calibrate an analog output range to the process data value
range. AS parameter for the calibration, the module will only transmit the
basic value for the minimum value of the analog output range as offset. The
basic value for the maximum value serves to calculate a linear gain. The
degree of the gain is entered as amplification factor in register 37.
The amplification factor is calculated as follows:
Two calibration sets are provided for the module. These are divided into the
manufacturer and user calibration. Only one calibration set is ever active. The
selection occurs via bit 1 of register 32.
Configuration of the manufacturer calibration
Register Name
Configuration of the user calibration
Register Name
Calculation formula:
With the activation of the user calibration, the analog output range can be
selected freely taking into account the operating mode. In reality, the
minimum and maximum possible analog output values lie a little below or
above the named analog limits.
WAGO-I/O-SYSTEM 750
I/O Modules
Calibration
DAC
Gain = 8192*((BasicValue
(A/H)K
17 Offset
HK
18 Gain
HK
36 Offset
AK
37 Gain
AK
Y = X * Gain
DAC 3 (A/H)K
750-563 [2 AO 0/4-20mA / 6-18V DC 16 Bit]
– BasicValue
max
Description
Manufacturer calibration offset
Manufacturer calibration amplification factor
Description
User calibration offset
User calibration amplification factor
/ 8192 + Offset
(A/H)K
Function Description
) / 65535)
min
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