Cj2m

Hi
I am trying to convert a program from a Omron CQM1H that uses the STIM(69) - interval timer instruction and the @INT(89) instruction as this PLC is no longer available I am changing it to a Omron CJ2M and these instructions are not available. My aim is to monitor the time 0.00 0.01 0.02 0.03 beams have been broken for and post them to a DM area then do a compare. I am counting day old chickens at 60,000 per hour. The CJ2M only has the MSKS instruction and Omron are not sure how the original software was written as they can not believe we can have those times and still scan the program. With CQM1H we can scan at 0.5ms that was unheard of. if someone can help it would be appreciated. Just some info on the MSKS instruction and samples of use utilizing the internal timer.
Thanks Don

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0ahUKEwics5mNo-fPAhWN0YMKHRylDx8QFggxMAM&url=https%3A%2F%2Fdownloads.omron.eu%2FIAB%2FProducts%2FAutomation%2520Systems%2FPLCs%2FModular%2520PLC%2520Series%2FCJ2M%2FCSM_CJ2M-CPU3_CPU1%2FCJ2M-CPU3-CPU1_E1_DS.pdf&usg=AFQjCNHQyGQXP22u7Jwm0x8Bg4S5zc4Pwg&bvm=bv.135974163,d.amc

What you want to look for is a scheduled interrupt in the CJ2M. This would be set for 5msec.

Hope this helps you out.
Regards,

Thanks for that
But how can I do this, Omron say I can only use the msks instruction and due to it being so quick it is very hard to monitor the interrupts I wish to set up the internal timer and scan this
Thanks Don

Use a scheduled interrupt tasks set for 5mSec.
1. Configure the Scheduled Interrupt Interval in the PLC settings for 1.0 mSec.
2. Add a new task to your program and set its properties as Interrupt Task 02.
3. In your main program enable the scheduled interrupt and set its value to 5 using MSKS.

Now any logic contained in the Int 02 task will be evaluated every 5 mSec.

Hi
Thanks for the info but the CQM1H is running at 0.5ms not 5ms
Don

Then simply change the PLC settings from 1.0 mSec to 0.1mSec.
Remember to download the settings to the PLC AND be sure to cycle power for settings to be accepted.