Relay Logic Simulator

[steve66]

Does anyone know of a good program that simulates relay logic circuits?

I'd like to test a circuit before the electricians build it. Of course, the lower the price the better, and free would be great.

Steve

 

[Jraef]

If you have any kind of PLC programming software, most will allow you to test the logic in simulation mode without actually hooking it up to a PLC. Just create a program as if everything is hard wired relays, in other words don't take advantage of any of the extended capabilities of the PLC since you are simulating relay logic.

 

[tkb]

Check out The Constructor from CMH Software. $399.00
http://www.cmhsoftware.com/

Good software is not free or cheap.

 

[ptonsparky]

Check out The Constructor from CMH Software. $399.00
http://www.cmhsoftware.com/

Good software is not free or cheap.

We tugged & pulled wires for about a month at one small industrial and 6-8
weeks at another to confirm their operating sequence prior to installing PLC control. We created a working ladder with this software, proved or disproved the owners thoughts on how things worked and then used those diagrams to set up the logic in our programing. Worked great.