dabou1323

Hello, I'm looking to interface a USB barcode reader with a Micro820.  Is there anyway to interface a USB device with a AB PLC?  

Hello! I'm working on a project. I cannot get online with the PLC. The compagnie who made the program does not exist anymore so they cannot help me. Does anyone knows how to unlock a locked controller ? Do you know a compagnie who can solve this kind of problem ? Otherwise my only option is to wipe the all thing and reprogram it .... which would be bad. Thanks !

Hi everyone, I'm about to use the wonderware historian redundancy feature and I would like to have some opinion about it. - Someone has already use it ? - Any major bug/adivse ? - Would you recommend it ? An other word any comment would be appricated !!! Thanks