BECKHOFF KL3681 - Manual (Page 12)

Product overview
Designation Meaning Register Designation Meaning Register
X
ADC
Output value of
the A/D
converter R0 [ } 33]
Y
Z
Measured value
after ADC offset
correction B
Z
Current ADC
Zero value
B
ZCal
ADC Zero at the
time of
calibration
Y
F
Measured value
after averaging
Y
60
Measured value
after adaptation
of the 60 Hz
integration time B
F
60 Hz offset
A
F
60 Hz gain
Y
H
Measured value
after
manufacturer
calibration B
K
Manufacturer
offset
A
K
Manufacturer
gain
Y
A
Measured value
after user
calibration B
A
User offset
A
A
User gain
Y Measured value
after AC system
offset X
SO
AC system
offset
Y
Scal
Measured value
after scaling F
Scal
End value in 1
bit per 1µV /
1µA
Determining (user) gain values
The terminal has one user compensation value pair for each measuring range and measurement type, i.e.
14 pairs in total. "+1" (0x4000) is not used in order to increase the resolution of the gain value.
Since the gain values may be less than 1, a factor of 1/8 is multiplied to the gain value. For a gain of 1 the
gain value must be 0x2000.
For gain G = 1 the following applies:
For other values G must be replaced with the required gain factor.
Before the compensation the value display option should be set to "right­aligned": Register R32.12 to R32.15
[
} 35] value assignment of 1
dec
.
KL3681, KS3681 12 Version 2.0.0