Triggering; General - MICRO-EPSILON interferoMETER Operating Instructions Manual

Advanced Settings
7.2.8

Triggering

7.2.8.1

General

Measured value input or output by the interferoMETER can be controlled using an external electrical trigger signal or
commands. Both analog and digital outputs are affected by this.
- Triggering does not affect the specified measuring rate.
- As external trigger inputs, Sync/Trig or TrigIn are used, see Chap. 5.4.9.
- Factory settings: no triggering, the controller starts transmitting data as soon as it is switched on.
- The pulse of the trigger signal must be at least 5 µs.
Trigger settings are performed in the Settings > Data recording > Trigger data recording menu. The
triggering of the measured value recording and output have the same timing.
Sync/Trig
Trigger type
TrigIn
Number of measured values
Software
Start triggering
Encoder 1/2
Inactive
Level triggering. Continuous value input or output for as long as the select-
ed level is active. Afterwards, the controller stops the input/output of the values.
The duration of the pulse must be at least one cycle time. The subsequent pause
must also be at least one cycle time.
U
= Trigger signal
I
W =
Displacement signal
Fig. 48 Active high level trigger (U
relevant analog signal (A
Edge triggering. Starts value input or output as soon as the selected edge
is active to the trigger input. The number of recorded measurement values de-
pends on the Number of measured values parameter. The duration of the
pulse must be at least 5 µs.
Fig. 49 Falling edge trigger (U
Software triggering. Starts value input or output as soon as a software command (instead of the trigger input)
or the Initiate trigger button is activated. The point in time is not defined as accurately. If trigger conditions are
met, the controller outputs a defined number of measurements. Value range between 1 and 16383. Value output can be
stopped with a command, see
Encoder triggering. One of the three encoder inputs can be used for triggering. When the trigger condition is met,
the controller processes the measured values; the controller then waits for another trigger signal.
IMS5x00
Level
Edge
),
I
) and digital signal (D )
0 0
), relevant analog signal (A
I
Chap. A 3.3.4.5.
Trigger level
Trigger level
Number of measured
values
Lower limit
Upper limit
Step size
Continuous data recording
) and digital signal (D
0
Low / High
falling edge / rising edge
Manual selection
infinite
Manual selection
infinite
U
I
W
A
0
D
0
U
I
W
A
0
D
0
)
0
Value
Value
Value
Value
Value
t
t
t
t
t
t
t
t
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