DirectLOGIC06 and DirectSOFT newb

[trekathlete]

High everyone. I am just getting familiarized with PLC's for my new job.

Anyways I have set up a test PLC with a button, a photo eye and an HMI. I am currently trying to figure out how to correctly use the memory in correlation with the count box so that I can produce an output on my HMI of how many times a button has been pressed or how many times the photo eye has been tripped. Anyways any help is much appreciated. I will continue to pour over these threads and try to gain as much knowledge as possible. Thanks!

 

[jaden]

Which HMI are you using?

 

[trekathlete]

I am using the direct logic c-more micro HMI.

 

[jaden]

To display the accumulated count results of a Counter, set a C-more Numeric Display tag to V1000 for Counter 0, V1001 for Counter 1, etc. See page 5-45 of the D006 User Manual, downloadable from Auto D.

 

[trekathlete]

I figured it out. What i was having problems was written right in the CNT Description! I wasn't understanding where the CNT values were being stored in memory and was trying to store them in memory myself someplace else.

Ok now that I have that figured out my next question is that if CNT only goes up to 9999 how can i make it count higher than that. I would imagine in regular code doing an if statement which basically would say if CNT1 <= 9999 then use CNT2 and so on. I am sure there is probably a way to do this with ladder logic or maybe even a slicker way that you know of. Thanks for the help so far!

 

[gclshortt]

https://cdn.automationdirect.com/static/manuals/d006userm/ch5.pdf

There are several ways to handle values greater than 9999. I would use an increment instruction (INC) instead of the counter. Then look for the status bit to increment the next register. You could also use the double word add function with a constant of 1.

Regards,

 

[bernie_carlton]

You could also use a UDC (Up/Down Counter). It counts to 99999999. Note to accomplish this it uses two sequential Counter numbers and stores the accumulted count in two sequential V memory locations. So mark the second counter and V memory in documentation to discouage their use for other purposes.

The HMI must ask for this count as a BCD32 type value.

 

[trekathlete]

Awesome ideas guys. Thanks for your input! I will continue to play and learn!