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Showing results for tags 'watchdog'.
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BaToO posted a topic in Vision & Samba PLC + HMI Controllers & VisiLogic SoftwareHello every one, I'm programming on Visilogic and when I build my project i have 1 warning on all my Nets : "Whenever the application uses a block delay or a loop - it may cause the PLC watchdog" and i don't know how to resolve it. Hope you can help me. Thanks, Baptiste. programme_automate_grenailleuse_V3.vlp
PeterFukt posted a topic in Vision & Samba PLC + HMI Controllers & VisiLogic SoftwareHello, I'm trying to figure out how to make a watchdog function in a Samba SM35-TA22- The customer will use TCP/IP to mostly read values from the PLC. If the communication goes down, the unit should stop. But I have no idea how to make this. I was looking at SB147 which is Socket 0 connected but it is constantly changing when I disrupt the connection, I guess it is due to auto connect. Is it the best option to use SB147 with perhaps a timer so if it is on for 10 seconds, that means the communication is up and the unit can run, but if sb147 change, the timer reset and the unit is stopped. I just want some feedback if I'm all wrong here. Thanks! //Peter