Delta AS Series Programming Manual page 454

API Instruction
0601 D HSRF
Device X Y M
S
S
1
Data
type
S
S
1
Symbol
Explanation
1. The timing for the PLC to update the comparative value in its comparator is when the DHSCS or DHSCR
instruction is scanned by a program successfully. However, the refresh may fail if the scan time is too long or the
input signal comes too fast. In this event, users can use the instruction to assign the new comparative value to the
hardware comparator in the PLC and achieve the real-time comparison.
2. S is the No of the specified high-speed counter to be refreshed. S
that in the DHSCS or DHSCR instruction and the immediate value can not be set for S
same operand as that in the high-speed comparison instruction which has been enabled, the instruction execution
will not take effect.
3. Only the firmware of V1.04.00 and later supports the instruction.
Operand
P S，S
S T C HC


Pulse Instruction
AS
S :
S :
1
Ch a pt er 6 Ap p l i ed I ns t r uc t i ons
Immediate refresh of a high-speed
1
D FR SM SR


16-bit instruction
－
High-speed counter to be refreshed
Quantity of I/O to be updated
has the same component or variable name as
1
Description
comparative value
E K 16# "$" F

32-bit instruction
AS
. If S does not have the
1 1
6 - 1 7 5
6_