Technical data

Download, testing and diagnostics
CPU 317T: Technology Functions
A5E00251798-03
8-23
Trigger
Field / button Description
Type
(not SINAMICS
Trace)
At "Type", select the condition for starting signal recording in Trace.
Immediate recording
Recording begins when the trace is started.
Trigger on variable
The recording is triggered by a system variable:
5th Select the "cycle clock" in which the condition (below) is checked.
6th Enter the condition. To do so, click "
...". Select the trigger type, the variable
etc.
7th Enter a value in the "Pre-trigger" box if you want recording to start before the
trigger condition is fulfilled.
Trigger at the start of a Function generator
The recording is triggered at the start of a function generator. This can be used,
for example, to record the step response of the system to a step you have defined
in the function generator.
• Select the function generator in "FctGen."
Trigger type
SINAMICS Trace:
Type
Set the condition for starting signal recording in Trace.
• Immediate trigger: Recording begins at the start of Trace.
• "Positive edge:"
The recording starts when the entered trigger threshold is exceeded. Enter the
trigger threshold at "Threshold".
• "Negative edge:"
The recording starts when the specified low limit of the trigger threshold is
violated. Enter the trigger threshold at "Threshold".
• "Within a tolerance band:"
The signal recording is started when the parameter value lies within the
tolerance band. To start the measurement, the parameter value must lie within
the hi and lo threshold value. If the hi and the lo threshold values are identical,
a test is made whether the parameter value equals the threshold values.
• "Outside a tolerance band:"
The signal recording is started when the parameter value lies outside the
tolerance band. To start the measurement, the parameter value must lie within
the hi and lo threshold values. If the upper and the lower threshold values are
identical, a test is made whether the parameter value equals the threshold
values.
• "Bit pattern:"
If the value of the parameter has the same bit pattern as the comparison
pattern, the signal recording will be started. You must enter the bit mask and
the bit pattern.
• "Status change (ENUM):"
If the value of the parameter matches the set state, the signal recording will
be started. Enter the ENUM variable whose values are used for triggering.
Also specify whether the state is to be equal to, less than or greater than the
value of the ENUM variable.
(not available in the SINAMICS Trace)