k-rhym

hi hdhosseini

i don't understand, you said that i'm using the outputs of my slave in the fc4 but i'm using it in differents FC and all inputs and outputs of the slave used as bits 

FC4 was only an example. That is what I want to convey from the beginning. If you have simple I/O modules like DI/DOs , you can use simple bit operation.For other simple modules like analog modules, you may use MOVE instructions.

Complex modules like gateways with more data width to exchange needs SFC14/15 due to consistency requirements.

k-rhym

hi hdhosseini

just a silly question what do you mean by  "you can use simple bit operation"

 By "Simple bit operation" , I meant to use combination of bit logic elements to create the logic you want.See the attached file.

hi hdhosseini

thanks alot for all your help