Delta AS Series Programming Manual page 499

AS Ser ies Pro gra mm in g M anu al
Value of the head index (16-bit)
Value of the tail index (16-bit)
Compared stack area 1 for the
entering -work-station ones (32-bit)
Compared stack area 1 for the
leaving-work-station ones (32-bit)
Compared stack area m for the
entering -work-station ones (32-bit)
Compared stack area m for the
leaving-work-station ones (32-bit)
D tends to occupy more space in the stack area. If the required space exceeds the range of device D, the PLC only
executes what is valid in the storage and does not show a no warning. It is suggested that you declare an array of
2xn+4xmxn words for D.
10. There is no limit on the number of times you can execute the instruction but only one execution can be done at a
time.
11. It is suggested to use this instruction with the YOUT instruction (API 0710), and use the same first corresponding
_6
device for the comparison result in the stack area (D).
12. For PLC with FW V1.04.00 (V1.04.00 included) or previous versions:
The following timing diagram shows executing the high-speed counter and filter (reading from right to left).
5
① PLC reads the current counter value and stores the value in a register.
② Drop the shifting counter value: when the signal is unstable (the number of filters is not sufficient).
③ Drop the shifting counter value: when the signal is unstable (the number of filters is not sufficient).
④ Record the counter value to the compared stack area for the entering-work-station ones, when the signal is
stable.
6 - 2 2 0
Function
D+0
D+n
D+2xn
D+4xn
：
D+4xmxn-2xn
D+4xmxn
3 1 1
1
4 5 4
Work station 1 Work station 2
D+1
D+(n+1)
D+2xn+2
D+4xn+2
： ：
2
1
1
‧‧‧
Work station n
‧‧‧
D+(n-1)
‧‧‧
D+(2xn-1)
‧‧‧
D+2xn+2(n-1)
‧‧‧
D+4xn+2(n-1)
： ：
‧‧‧
D+4xmxn-2
‧‧‧
D+4xmxn+2 (n-1)