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Data Tracing
Section 9-6
9-6
Data Tracing
Data tracing is supported for MC Units with unit version 3.0 or later.
Data Tracing Operations
The following table lists the data trace operations that are supported for MC
Units.
Details of Operations
For details on operation methods, refer to the
CX-Motion-MCH Support Tool
Operation Manual
.
Item
Description
Number of trace groups
2
Number of trace data items
From 1 to 16 items can be simultaneously collected per
group.
A maximum total of 32 items can be simultaneously
collected for two groups combined.
Note
Bit information (e.g., JOG bit s) or monitoring
information (e.g., present positions) is counted
as one item.
Number of trace points
From 2,048 (for 1 trace data item) to 32,768 trace
points (for 16 trace data items) can be collected per
group.
Trace execution scan
The specified data is collected each Unit cycle.
If the Unit cycle is 1 ms, data can be collected for a
maximum of 32,768 ms.
Trace data format
Bits, words, double words, and real numbers
Trace start
The trace start condition can be set using the Support
Tool.
Trigger condition
The trigger condition can be set as a single condition or
as two conditions with a logical AND.
Data: =
≠ < > ≤ ≥
Bit: ON, OFF, leading edge, trailing edge
Pre-trigger
Data prior to the trigger condition can be traced.
Saving trace conditions
The conditions to be traced can be saved in flash mem-
ory.
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