Beckhoff KL3361, Documentation

Page: 59 / 70

Access from the user program
KL3361 and KL3362 59 Version: 2.2.0
R32: Feature register
The feature register specifies the terminal's operating mode.
Bit Operation mode Value Explanation Default
R32.15 - - reserved 0
bin
... - - reserved 0
bin
R32.11 - - reserved 0
bin
R32.10
R32.9
R32.8 Trigger type 000
bin
Post-trigger. Recording commences as soon as a
trigger event occurs. 000
bin
001
bin
Pre-trigger. Recording ceases as soon as a trigger
event occurs.
010
bin
Mid-trigger: The trigger event is the center of the
recording.
011
bin
FastSampling (from firmware version 1B'): Operation
with increased sampling rate of up to 10 µs.
• The recording can only be started via the trigger
input.
• The settings of the trigger units are not taken into
account.
• Only the first channel is recorded, even for KL3362.
R32.7 - - reserved 0
bin
R32.6
Auto trigger [ } 42]
0
bin
not active 0
bin
1
bin
active: The trigger unit is automatically activated once
the preceding event has been evaluated. To this end,
bit 0 is toggled in status byte 1 (SB1) with each new
evaluation.
R32.5
Test mode [
}
42]
0
bin
not active 0
bin
1
bin
active: The oscilloscope terminal simulates a ramp of
sampling values. The sampling value is incremented
after each reading. The ramp thus runs from 0x0000 to
0x3FFF. From 0x3FFF, the sampling value after each
reading is decremented, so that the ramp returns to
0x0000. The process is repeated cyclically.
R32.4
Trigger delay [
}
42]
0
bin
not active 0
bin
1
bin
active: Samples skipped after the trigger event. The
number of samples that are skipped is specified in the
Trigger delay register ( R52 [ } 63] ).
R32.3 - - reserved 0
bin
... - - reserved 0
bin
R32.0 - - reserved 0
bin
R33: User offset
Offset, can be changed by the user. Scaling:
offset = full scale value x parameter / resolution
Sample for KL3361: 16 mV x 100 / 32767 = 0,049 mV
R34: User gain
Gain factor, can be changed by the user.