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General => Technical support => Topic started by: bl on February 07, 2009, 07:49:58 PM

Title: Where is normally closed output symbol?
Post by: bl on February 07, 2009, 07:49:58 PM

Does anybody know where is the symbol for normally closed output?
I use v.6.22 of Trilogi.

Title: Re:Where is normally closed output symbol?
Post by: support on February 08, 2009, 08:39:32 AM

There is no normally closed output in TRiLOGI. You can invert it using an internal relay.

Title: Re:Where is normally closed output symbol?
Post by: bl on February 08, 2009, 10:31:31 AM

Where is this internal relay? I couldn't find anything.
Personally I don't mind Trilogi but why it is so much complicated compared to another PLC packages?
Why do I have to use some internal relay if I need to just shut down an output?  ???

Title: Re:Where is normally closed output symbol?
Post by: support on February 08, 2009, 11:52:49 AM

Inverted output is not a necessity in most program as they can be programmed with regular outputs. If you need to, just turn on a relay and used the NC contact of relays to trigger the output.

If you are just beginning to learn about ladder logic programming you can visit http://www.plcs.net to get some basic learning course.