User`s manual

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MELSEC-Q
4 DATA USED FOR POSITIONING CONTROL
4.1.6 Type and roles of monitor data
The monitor data area in the buffer memory stores data relating to the control state of
the positioning control system, which are monitored as required while the positioning
system is operating.
The following data are available for monitoring.
• Axis operation monitoring:
Monitoring of the current position and speed, and other data related to the
movements of axes (through the axis monitor data
Md. 1
to
Md. 9
)
• Module information monitoring:
Monitoring of the QD70 error status and warning status (through the module
information monitor data
Md. 10
to
Md. 11
)
Refer to "Section 4.6 List of monitor data" for details of the monitor data.
Monitor data Monitor details
Md. 1
Current feed value Monitor the current "current feed value"
Md. 2
Movement amount after near-point dog
ON
Monitor the movement amount after the near-point dog has turned
ON
Md. 3
Current speed Monitor the current speed
Md. 4
Axis operation status Monitor the axis operation state
Md. 5
Axis error code Monitor the latest error code that occurred with the axis
Md. 6
Axis warning code Monitor the latest warning code that occurred with the axis
Md. 7
Status Monitor the flag
Md. 8
External I/O signal Monitor the external input/output signal
Md. 9
Executing positioning data No. Monitor the "positioning data No." currently being executed
Md. 10
Error status Monitor the error status of each axis
Md. 11
Warning status Monitor the warning status of each axis