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6.14 Sampling Trace Function
6
FUNCTIONS
2) Trace Point Setup
This sets the timing to collect trace data. Select one from the following:
• Each Scan
Collects trace data for every scan (END processing).
• Interval
Collects trace data at specified times.
• Per multiple CPU high speed transmission cycle (Universal model QCPU
only)
Data is collected in a cycle of 0.88ms specified interval of time.
When the trace point setting is set to [per multiple CPU high speed
transmission cycle], the trace data can be collected only when the
following conditions are all met, since the trace data is collected at the
timing of executing the interrupt program of I45.
1.Multiple CPU high speed main base unit (Q3 DB) is used.
2.The multiple CPU system where two or more CPU modules are used
and multiple CPU high speed transmission function is set.
3.Interrupt pointer of I45 exists in a program.
4.EI status with the interrupt mask of I45 is cancelled.
• Detailed
Sets the device and step no. The setting method and trace data sampling
timing is the same as mentioned in Section 6.11.1, (when setting the
monitor condition setting.)
Also, other than above timings, data can also be collected at the time of
changing word devices in the Universal model QCPU.
The device settable in the detailed setting is as follows:
•Bit Device : X(DX), Y(DY), M, L, F, SM, V, B, SB, T(contact),
ST(contact), C(contact), FX, FY, J \X, J \Y, J \B,
J \SB, BL \S
•Word Device : T(current value), ST(current value),C(current value),
D
*1
, SD, W
*2
, SW, R, Z, ZR, FD, U \G, J \W,
J \SW,
U3E \G (Universal model QCPU only)
* 1: The extended data register (D) is also included.
* 2: The extended link register (W) is also included.
The following attributes can be set for the above devices:
•Bit device number of digits specification
•Word device bit number specification
•Word device indirect specification
•index modification
