Delta AS Series Programming Manual page 563

AS Ser ies Pro gra mm in g M anu al
Type
Hardware counter
Software counter
5. Explanation of the hardware comparators for DHSCS, DHSCR, DHSCY and DHSZ instructions:

Every one group of hardware counters shares 4 high-speed comparators. One DHSCS, or DHSCR
instruction occupies 1 high-speed comparator. One DHSZ, DHSCY instruction uses 2 high-speed
_6
comparators.

During program editing, every group of hardware counters can use 4 high-speed comparators at most for
DHSCS, DHSCR, DHSCY or DHSZ instructions; otherwise, a syntax error occurs.
6. Explanation of the software comparators for DHSCS, DHSCR and DHSCY instructions:

There are 8 software comparators to compare the Set or Reset function. Each DHSCS, DHSCR or DHSCY
instruction uses one high-speed comparator.

The software comparators compare the interrupt by assigning a corresponding software comparator
according to the interrupt numbers. Note that the same interrupt number cannot be used repeatedly.

For DHSCS, DHSCR or DHSCY instructions, the number of Set or Reset comparators cannot exceed eight
occurrences in the program; otherwise, a syntax error occurs.
7. Explanation of the software comparators for DHSZ instruction:

There are eight software comparators for the zone comparison. One DHSZ instruction uses one comparator.

DHSZ instruction can use a maximum of eight software comparators; otherwise, a syntax error occurs if
more than eight comparators are used.
8. The instructions DHSCS, DHSCR, DHSCY and DHSZ cannot be used in the ST programming language, interrupt
tasks or function block which is called only once.
6 - 2 8 4
Range of counter High-speed comparator
numbers
HC200 - HC203
HC204 - HC207
HC208 - HC211
HC212 - HC215
HC216 - HC219
HC220 - HC223
HC232 - HC253
High-speed interrupt
number
Comparator:
HCC00-HCC03
Comparator:
HCC04-HCC07
Comparator:
HCC08-HCC11
Comparator:
HCC12-HCC15
Comparator:
HCC16-HCC19
Comparator:
HCC20-HC223
-
device number
I200-I203
I210-I213
I220-I223
I230-I233
I240-I243
I250-I253
I260-I267