Mitsubishi Electric MELSEC iQ-R Series User Manual page 340

[Pr.804] Mark detection data buffer memory No.
Set the No. of optional 2 words buffer memory that latched at mark detection.
Set this No. as an even No.
If a value other than the above is set, the warning "Outside mark detection data buffer memory No. setting range" (warning
code: 0D39H) occurs and the target mark detection is not available.
[Pr.805] Latch data range upper limit value, [Pr.806] Latch data range lower limit value
Set the upper limit value and lower limit value of the latch data at mark detection.
When the data at mark detection is within the range, they are stored in "[Md.801] Mark detection data storage area (1 to 32)"
and "[Md.800] Number of mark detection" is incremented by 1. When the data is out of the range, the mark detection
processing is not executed.
• Upper limit value > Lower limit value
The mark detection is executed when the mark detection data is "greater or equal to the lower limit value and less than the
upper limit value".
• Upper limit value < Lower limit value
The mark detection is executed when the mark detection data is "greater or equal to the lower limit value or less than the
upper limit value".
• Upper limit value = Lower limit value
The mark detection range is not checked. The mark detection is executed for all range.
[Pr.807] Mark detection mode setting
Set the data storage method of mark detection.
Mode
Continuous detection
mode
Specified number of
detection mode
Ring buffer mode
[Pr.811] Mark detection signal detection direction setting
Set the signal detection direction when TPR1 of the servo amplifier is specified in "[Pr.800] Mark detection signal setting".
Only the setting in bit0 is valid.
0: Rising edge detection
1: Trailing edge detection
9 COMMON FUNCTIONS
338
9.7 Mark Detection Function
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Lower limit Upper limit
value value
Lower limit Upper limit
value value
Setting Operation for mark detection
value
0 Always
1 to 32 Number of detections
(If the number of mark detection is the number of detections or more, the
mark detection is not executed.)
-1 to -32 Always
(The mark detection data storage area 1 to 32 is used as a ring buffer for
the number of detections.)
search engine
t
t
Mark detection data storage
method
The data is updated in the mark
detection data storage area 1.
The data is stored to the mark detection
data storage area "n".
n = (1 + Number of mark detection)