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2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
System Control Instructions
2
TraceSamp
*_sTRACE_STA[]
• Refer to the NJ-series CPU Unit Software User’s Manual (Cat. No. W501) for details on data tracing.
• Tracing is used to sample the values of specified variables under specified conditions. The conditions
are specified from the Sysmac Studio.
• This instruction can be located in more than one place in the user program. Programming can be
written to sample according to specific conditions.
• Point can be suitably set so that you can see which sampled values on the Trace Window in the Sys-
mac Studio were returned by which TraceSamp instruction. Point will default to 0 if it is omitted.
• Return value Out is not used when the instruction is used in ST.
• In the following cases, nothing is done and the instruction ends normally.
• Data tracing is stopped.
• The sampling timing is not set to sampling instructions in the trace settings.
• The value of TraceNo is not the trace number set from the Sysmac Studio.
Related System-defined Variables
Name Meaning Data type Description
_PLC_TraceSta[0..3] Trace Information * Trace information
Refer to the NJ-series CPU Unit Software
User's Manual (Cat. No. W501) for details.
Additional Information
Precautions for Correct Use
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