[CX-ONE/Omron] Time Comparison Instruction

Hi guys!

Can someone post how to use this function?
Really having difficulties to use it.

thanks.

Regards,
Brooks

These instructions compare two sets of BCD date and time data each three words long and produce a true or false result. What are you trying to do??

I'm having trouble understanding this too.
Using a CP1L-EL20DR-D.

I'd like an output relay to switch on at midnight.

So far I've figured out:

C = 38 (which is 000111000 to HEX)
S1 = A351 (the internal clock)
S2 = ?

How do I input 0000 hours into S2? Do I use MOV into an address like D100? If so, how?

I'm trying to understand the conversion between digits to binary or whatever data is required.

Ok I got it working after 8 hours of trial and error..

For anyone who's struggling like me:

C is the mask for the timer and lets you ignore part of the current time.

The bits correspond to year/month/day/hour/min/sec.
So if you only need the hour it'll be 000100, or 3B in hex.

MOV #3B into D0 and that will be your mask.

S1 is the current time.
A351 = MMSS (minutes/seconds)
A352 = DDHH (day of month/hour)
A353 = YYMM (year/month)

S2 is the hour you'd like to set
So for 2PM you'd put #1400

I hope this helps and please correct me if I'm wrong.

Use ANDW #00FF or #FF00 to mask the values you do not require. For hours use ANDW #00FF A352 D???? and hours will be placed in D???? Quite easy when you know. The #00 masks the days. It is a 24 hour clock so 2PM is 1400 as you suggest but is in HEX. To compare use = D???? #14 then an output bit and the bit will turn on when it is 2PM and off at 3PM.