How to 'count up' timer

[gorichan 0]

Hello guys Help me. How to make timer in Cx-Programmer to count up? TQ.

[BobB 58]

Use CNTR function.

[scottmurphy 1]

Why do you need to count up? So you can see elapsed time? There are many ways to skin a kangaroo.....

[Sleepy Wombat 27]

I would not use a CNTR function... it is not a direct equiv to an AB CTU instruction if that is wha you are looking for. I would use a @INC or in a CJ @++ instruction and do comparisons accordingly. Check out a previous thread http://forums.mrplc.com/index.php?showtopic=2465&hl=cntr

[BobB 58]

CNTR works, so does @INC. If the guy is new to Omron CNTR may be a bit easier that's all.

[gorichan 0]

Thanks! I have tried CNTR and it works! In CNTR, it will count up between zero and SV. But 1 thing, I tried and found out that the highest SV it can reach is #9999. Is there any way to go beyond that value? Ill try to count up using INC command as well to see which one is better.

[gorichan 0]

yerp! using INC also can. But INC command increments BCD data type. How I want to make INC command to increment # data type?

[BobB 58]

Generally speaking, the older Omron PLCs are BCD based. If you have a CJ1 or CS1, you can turn all the timers and countewrs into binary (decimal) based but they all have to go that way. By the way, # is BCD, decimal is &. Edited 24 Mar 2007 by BobB

[Guest anonymous]

Hello gorichan, If you are using a CS / CJ PLC, you can use "++" (Binary Increment - 0 to 65535). Also, as BobB says, switch the timers and counters to Binary (that'll give you 0 - 65535). To do this, go to PLC Properties, and select the checkbox option. Hope this helps Regards anonymous

[Sleepy Wombat 27]

Bobb CNTR works..... Well he better be aware of it limitations as I found out the hard way. From a previous topic

[gorichan 0]

Thanks guys!! Found them really² helpful!. I managed to count up timer in about 2 weeks ago but forgot to say thank you. So once again Thank You!! I get my project done! yeah~