9 COMMON FUNCTIONS
9.9 Mark Detection Function
333
9
■Specified number of detection mode (Number of detections: 2)
How to use mark detection function
The following shows an example for mark detection by the external command signal (DI2) of axis 2.
The mark detection target is axis 1 real current value, and the all range is detected in continuous detection mode.
• Allocate the input signal (DI2) to the external command signal of axis 2, and set the "high speed input request" for mark
detection.
n: Axis No. - 1
• Set the following mark detection setting parameters. The optional mark detection setting No. can be set.
k: Mark detection setting No. - 1
• Turn the power supply OFF or reset of the CPU module to validate the setting parameters.
• The mark detection starts by setting "1: Validates an external command." in "[Cd.8] External command valid" of axis 2 with
the program. Refer to "[Md.800] Number of mark detection" or "[Md.801] Mark detection data storage area (1 to 32)" of the
set detection setting No. for the number of mark detections and mark detection data.
Storage item Setting
value
Storage details/storage value Buffer memory
address
[Pr.95] External command signal
selection
2 Set "2: DI2" to the external command signal of axis 2. 219 (69+150n)
[Pr.42] External command function
selection
4 Set "4: High speed input request" as the function used in the external
command signal of axis 2.
212 (62+150n)
Storage item Setting
value
Storage details/storage value Buffer memory
address
[Pr.800] Mark detection signal setting 2 Set "2: Axis 2" to the external input signal for mark detection. 54000+20k
[Pr.801] Mark detection signal
compensation time
0 Set "0: (No compensation)" to the compensation time such as delay of
sensor.
54001+20k
[Pr.802] Mark detection data type 2 Set "2: Real current value" to the target data for mark detection. 54002+20k
[Pr.803] Mark detection data axis No. 1 Set "1: Axis 1" to the axis No. of target data for mark detection. 54003+20k
[Pr.805] Latch data range upper limit
value
0 Set "0" to the valid upper limit value for latch data at mark detection. (Mark
detection for all range is executed by setting the same value as lower limit
value.)
54006+20k
54007+20k
[Pr.806] Latch data range lower limit
value
0 Set "0" to the valid lower limit value for latch data at mark detection. (Mark
detection for all range is executed by setting the same value as upper limit
value.)
54008+20k
54009+20k
[Pr.807] Mark detection mode setting 0 Set "0: Continuous detection mode" to the mark detection mode. 54010+20k
Mark detection signal
(Leading edge detection setting)
**
0 12
Real current value
(Continuous update)
Mark detection data value
Confirmation of mark detection data range
(Upper/lower limit value setting: Valid)
Mark detection is not executed
because the number of mark detections
is already 2 (More than the specified
number of detections).
Detection real current value (2nd)
[Md.800] Number of mark detection
"0" clear by setting "1" in "[Cd.800] Number of mark detection clear request".
[Pr.42] External command function selection
[Cd.8] External command valid
01
4: High speed input request
Set "1" before mark detection start.
Detection real current value (1st)
[Md.801] Mark detection data storage
area (1 to 32) (1st area)
[Md.801] Mark detection data storage
area (1 to 32) (2nd area)
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