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Chapter 14 Common Functions
[Cd.802] Latch data range change request
Request the processing of latch data range change. Set the following value
depending on the timing of updating the change value.
1 : Change in the next Operation cycle of the requested
2 : Change in the next DI input of the requested
• "0" is automatically set after receiving the latch data range change request. (It
indicates that the latch data range change is completed.)
• "[Pr.805] Latch data range upper limit value" and "[Pr.806] Latch data range
lower limit value" at latch data range change request are used as the change
value.
• Restrictions according to the type of latch data range change request are shown
below.
Types of change request
[Cd.801] Mark detection invalid flag
Changing
possibility
1: Change in the next Operation
cycle of the requested
1 : Mark detection: Invalid
Other than 1: Mark detection: Valid
2: Change in the next DI input of
the requested
1 : Mark detection: Invalid
Other than 1: Mark detection: Valid
: Possible, : Not possible
(3) Mark detection monitor data
Storage item Storage details/storage value
Buffer memory address
QD77MS2
QD77MS4
QD77MS16
[Md.800]
Number of mark
detection
The number of mark detections is stored.
"0" clear is executed at power supply ON.
Continuous detection mode: 0 to 65535 (Ring counter)
Specified number of detection mode: 0 to 32
Ring buffer mode: 0 to (number of buffers - 1)
Refresh cycle: At mark detection
54960+80k
[Md.801]
Mark detection data
storage area 1
to
Mark detection data
storage area 32
The latch data at mark detection is stored.
Data for up to 32 times are stored in the specified number of
detection mode.
Data are stored as a ring buffer for number of detections in the
ring buffer mode.
-2147483648 to 2147483647
Refresh cycle: At mark detection
54962+80k,
54963+80k
to
55024+80k,
55025+80k
k: Mark detection setting No.-1
[Md.800] Number of mark detection
The counter value is incremented by 1 at mark detection. Preset "0" clear in
"[Cd.800] Number of mark detection clear request" to execute the mark detection
in specified number of detections mode or ring buffer mode.
[Md.801] Mark detection data storage area 1 to 32
The latch data at mark detection is stored. Data for up to 32 times can be stored in
the specified number of detection mode or ring buffer mode.