Beckhoff KL3356, Documentation

Page: 49 / 55

Access from the user program
KL3356 49 Version: 2.3.0
Recommended values
Value in R37 F
stop
Cycle time
0x35C0 50 Hz 140 ms
0x2660 70 Hz 100 ms
0x1330 140 Hz 50 ms
0x7FF1 40 ms
0x3FF1 20 ms
0x1001 <4 ms
Value in R37 F
limit
Cycle time
0x7FF2 39.6 Hz 40 ms
0x3FF2 77.36 Hz 20 ms
0x1002 158 Hz <4 ms
R38: scaling factor
This register contains the scale factor.
Examples:
0x0001 (01
dec
) means factor 1
0x000A (10
dec
) means factor 10
The scale factor can be enabled through bit R32.8 [ } 47] in the feature register.
R39: Measuring interval for reference signal
This register contains the measuring interval for the cyclic reference measurement. The unit is 100 ms. The
cyclic reference measurement can be enabled through bit
R32.6 [
}
47] in the feature register.
R40: Calibration interval
This register contains the calibration interval for the terminal's automatic calibration. The unit is 100 ms. The
automatic calibration can be enabled through bit
R32.4 [ } 47] in the feature register.
R41: Test interval
This register contains the test interval for the terminal's cyclic testing. This interval is always a multiple
(default: 3
dec
) of the calibration interval (R40). The test interval when the terminal leaves the factory is
therefore 10 x 180 s = 1800 s. The cyclic testing can be enabled through bit R32.5 [
}
47] in the feature
register.
R42: nominal test value
This register contains the terminal's nominal test value.
During the production of the terminal, the actual test value is transferred from register 5 to the nominal test
value register R42. This value provides information about a voltage resulting from an internal reference
voltage source and a voltage divider.
During a calibration, the system checks whether the value is within the tolerance given by registers R42 and
R43. This can be used to determine whether there is an internal defect (e.g. faulty analog switch).
This value may change slightly over time (due to ageing of the electrical components). If necessary, the
actual test value of register R5 should therefore be transferred to register R42 from time to time. This can be
done safely, because in case of an error the value will approach 0 or 65535.
R43: test tolerance
This register contains the test tolerance of the terminal (+/-).