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luishds22 · October 18th, 2022, 12:08 PM

Hi everyone, new to the forum and new to programming. I do have a question but don't know if this is the right place to post it. I'll do it anyway. I am working with Direct Logic PLCs and something is writing a bit to my program. Is there way of finding out what is writing that specific bit to my program?

luishds22

MikeyN · October 18th, 2022, 04:21 PM

Hello, and welcome to the forum! You would do better posting this over on the main forum: http://www.plctalk.net/qanda/forumdisplay.php?f=2. Please include the model of your PLC, any external devices connected to the PLC (HMI, Drive, etc), and if possible a copy of the program you have written. Forum policy is to zip any file you plan to attach.

If you do have an HMI attached to the PLC, there is a good chance that it could be writing to various bits in your program. If not, it could be an issue with duplicate destructive bits, set/reset bits, or latches in your program. I do not personally work with Direct Logic PLCs, but there are plenty of people in the main forum that do and would probably be more than happy to help you out.

Again, welcome to the forum!

October 18th, 2022, 12:08 PM	#1
luishds22 Member Join Date: Oct 2022 Location: El Paso, Tx Posts: 1	New Here Hi everyone, new to the forum and new to programming. I do have a question but don't know if this is the right place to post it. I'll do it anyway. I am working with Direct Logic PLCs and something is writing a bit to my program. Is there way of finding out what is writing that specific bit to my program? luishds22

October 18th, 2022, 04:21 PM	#2
MikeyN Lifetime Supporting Member Join Date: Dec 2017 Location: Illinois Posts: 252	Hello, and welcome to the forum! You would do better posting this over on the main forum: http://www.plctalk.net/qanda/forumdisplay.php?f=2. Please include the model of your PLC, any external devices connected to the PLC (HMI, Drive, etc), and if possible a copy of the program you have written. Forum policy is to zip any file you plan to attach. If you do have an HMI attached to the PLC, there is a good chance that it could be writing to various bits in your program. If not, it could be an issue with duplicate destructive bits, set/reset bits, or latches in your program. I do not personally work with Direct Logic PLCs, but there are plenty of people in the main forum that do and would probably be more than happy to help you out. Again, welcome to the forum! __________________ C:\Dos C:\Dos Run Run Dos Run

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