Attribute Value
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) denes 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)
species how much pre-trigger history the trace will contain. Trigger will not occur until
at least the specied 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 buer size (sub-index 8) returns the size of the memory set aside by the servo drive for tracing. It may be dierent on
dierent servo drive sizes. The trace sample count, multiplied by the number of channels must not exceed this value.
Trace info ags (sub-index 9) describes some features relevant for the trace. Only bit 0 is dened 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 dened trace signals.
Bit Name Denition
3–0 ChannelCount Species how many signals the servo drive should trace (1–8). Cannot be changed while a
trace is active.
5, 4 TaskLevel Species the sampling frequency for the trace data.
01: Realtime task
10: Fast task
11: Slow task
6 TriggerSlope 1: rising slope;
0: falling slope
7 Mode 1: data acquisition depends on trigger input;
0: acquisition starts with start command
8 HasTriggered 1 if trigger event has occurred
13–9 Reserved –
14 DataReady 1 if all requested data has been traced and can be downloaded.
15 Acquiring 1 if data acquisition is in progress. No trace set-up changes are possible during this time.
Table 7.204 Denition of Bits for the Trace Control Flags
7.19.2 Parameter: Signal Trace Channel IDs (0x5001)
This object is used to dene 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 Value
Index 0x5001
Name Signal trace channel IDs
Object code Array
Data type UNSIGNED32
Servo Drive Parameter Descr... Programming Guide
MG36D102 Danfoss A/S © 01/2017 All rights reserved. 329
7 7
To Next Page
Loading...
Need help?
General
