Mitsubishi Electric RD77MS2 User Manual page 340

[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
Mark detection control data
k: Mark detection setting No. - 1
Setting item
[Cd.800] Number of mark
detection clear
request
[Cd.801] Mark detection
invalid flag
[Cd.802] Latch data range
change request
[Cd.800] Number of mark detection clear request
Set "1" to execute "0" clear of "[Md.800] Number of mark detection". "0" is automatically set after completion by "0" clear of
"[Md.800] Number of mark detection".
[Cd.801] Mark detection invalid flag
Set "1" to invalidate mark detection temporarily. The mark detection signal during invalidity is ignored.
[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.
: Possible, : Not possible
Types of change request
1: Change in the next Operation cycle
of the requested
2: Change in the next DI input of the
requested
9 COMMON FUNCTIONS
338
9.9 Mark Detection Function
Setting value Operation for mark detection
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.)
Setting details/setting value
Set "1" to execute "0" clear of number of mark detections.
"0" is automatically set after completion by "0" clear of number of
mark detections.
1: 0 clear of number of mark detections
Fetch cycle: Operation cycle
Set this flag to invalidate mark detection temporarily.
1: Mark detection: Invalid
Others: Mark detection: Valid
Fetch cycle: Operation cycle
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 the change is completed.
Fetch cycle: Operation cycle or DI input
[Cd.801] Mark detection invalid flag
1: Mark detection: Invalid
Other than 1: Mark detection: Valid
1: Mark detection: Invalid
Other than 1: Mark detection: Valid
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)
Default value
0
0
0
Changing possibility



Buffer memory address
54640+10k
54641+10k
54642+10k