Logo soft programming problem

[Breman]

Ok all you geniuses out there,

Please . a fellow out here.

 

Certainly a small problem (or none) for most of you, but for novis, a setback..

 

Installation:

a small, 3 level cargo-carrier up a hill.

 

One electric motor, two contactors (one for each direction of motor)

 

2 sensors per level (one extra for security) - Inductive

 

I have made the program, Ladder and FBD, in Siemens Logo software (the PLC is Logo).

 

The issue is when the “call-button” at the middle level is pushed, I can not implement in the program, that sensing if the “wagon” is up or down, which contactor to use, and using the sensors in the middle to stop.

 

I’m stuck.. 

 

 

Modificato: 13 dicembre 2023 da Livio Orsini
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