Vision & Samba PLC + HMI Controllers & VisiLogic Software
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Talk about issues related to the Vision and Samba PLC + HMI series and to VisiLogic software
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I think there was confusion between what the person that posted the problem and the advice that was given. The advice was to use a contactor to cut the mains supply to the controller when the safety relay was activated. The poster was referring to the manual, which stated that the power should not be cut regularly as this would damage the circuits. My reading of this is that it is OK to cut the power supply to stop the motor, but leave the control power still on the servo. It is the frequent switching the control power that causes problems with the circuitry. Someone will correct me on this if i have interpreted it wrongly. -
By Joe Tauser · Posted
Generally people use Structured Text or C code because they have something math intensive or they're just plain more comfortable with it because of their background. You don't really gain a lot with it because its just another form of compiled code. What is your application? Joe T. -
Really depends on the rest of the code & how complicated it is. For my applications these PLCs can handle a lot more than I can throw at them. We typically do 2 systems per PLC. I had a request to drop 12 systems into a single PLC and it handles it well. But then again it’s not real intensive as I only need 5-second resolution/updates. Your mileage may vary. -
Currently looking to implement c or structured text code into my Unilogic programs for more storage optimized / memory efficient programming. I am curious to see if anyone has noticed an increase in performance after implementing the Structured Text feature implemented in 1.34, or if anyone who uses the C editor regularly has found gains in doing so. Let me know how it's worked for you! -
By Joe Tauser · Posted
This is built in to UniStream, and it's fairly straightforward. Search the Help for "User" and it's the first topic. If you want to play around with an empty program and post your work here we'd be happy to help. Joe T.
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