Parameter: Signal Trace Channel Ids (0X5001) - Danfoss VLT Series Programming Manual

Servo Drive Parameter Descr...
Attribute
Default value
Table 7.203 0x5000: Signal Tracer Control
Writing 1 to Trace control (sub-index 2) starts the trace. Writing 0 aborts a running trace.
Trace sample count (sub-index 3) defines the amount of data to trace; each channel collects the indicated number of
samples.
If the process data to be traced is changing slowly, it can be set to sample every Nth time by writing N to Trace subsampling
(sub-index 4). The value 0 is treated like a 1.
Trace pre-trigger count (sub-index 5) specifies how much pre-trigger history the trace will contain. Trigger will not occur until
at least the specified number of samples has been recorded.
Trace trigger variable ID (sub-index 6) selects the signal to be used as the trigger source.
Trigger level (sub-index 7) gives the level the signal selected for triggering has to cross to generate the trigger event.
Trace buffer size (sub-index 8) returns the size of the memory set aside by the servo drive for tracing. It may be different on
different servo drive sizes. The trace sample count, multiplied by the number of channels must not exceed this value.
Trace info flags (sub-index 9) describes some features relevant for the trace. Only bit 0 is defined and is set to tell the PLC
that the trace data per channel is 32 bit wide. See chapter 9.2.3 Trace Signals for the list of defined trace signals.
Bit Name
3–0 ChannelCount
5, 4 TaskLevel
6 TriggerSlope
7 Mode
8 HasTriggered
13–9 Reserved
14 DataReady
15 Acquiring
Table 7.204 Definition of Bits for the Trace Control Flags

7.19.2 Parameter: Signal Trace Channel IDs (0x5001)

This object is used to define the process data signals that will be traced. The object is not visible in the LCP, so the sub-
indexes do not have LCP parameter numbers.
Attribute
Index
Name
Object code
Data type
MG36D102
Programming Guide
Value
–
Definition
Specifies how many signals the servo drive should trace (1–8). Cannot be changed while a
trace is active.
Specifies the sampling frequency for the trace data.
01: Realtime task
10: Fast task
11: Slow task
1: rising slope;
0: falling slope
1: data acquisition depends on trigger input;
0: acquisition starts with start command
1 if trigger event has occurred
–
1 if all requested data has been traced and can be downloaded.
1 if data acquisition is in progress. No trace set-up changes are possible during this time.
Value
0x5001
Signal trace channel IDs
Array
UNSIGNED32
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