# ABB S4C+ cross connection (QuickTeach) **URL:** \ **Category:** Robot Controller\ **Created:** [October 15, 2020, 7:34pm UTC](https://tech-community.robotics.abb.com/t/abb-s4c-cross-connection-quickteach/9752 "2020-10-15T19:34:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![paulfile](https://avatars.discourse-cdn.com/v4/letter/p/ac91a4/32.png) [@paulfile](https://tech-community.robotics.abb.com/u/paulfile)\ **Post date:** [October 15, 2020, 7:34pm UTC](https://tech-community.robotics.abb.com/t/abb-s4c-cross-connection-quickteach/9752/1 "2020-10-15T19:34:23Z")
Lets see if I remember the &, plus(+), and not(\*) in the crosses correctly. do1=true and do3=true results do2=true -Lact “do1 & do3” -Lres “do2” do1=true and do3=false results do2=true -Lact “do1 & \*do3” -Lres “do2” do1=true and do3=true results do2=true and do4=true -Lact “do1 & do3” -Lres “do2 + do4” We do it from the EIO file.But I want to use OR gate instead of and not gate.I don’t want to use \*(and not) do1= true or do3= true or do4=true results do2= true how can I do that? ---
**Author:** ![DenisFR](https://avatars.discourse-cdn.com/v4/letter/d/dc4da7/32.png) [@DenisFR](https://tech-community.robotics.abb.com/u/DenisFR)\ **Post date:** [October 16, 2020, 8:31am UTC](https://tech-community.robotics.abb.com/t/abb-s4c-cross-connection-quickteach/9752/2 "2020-10-16T08:31:27Z")
Hello, “!” is the OR operator. But you can’t mix AND and OR in the same equation. ---
**Author:** ![paulfile](https://avatars.discourse-cdn.com/v4/letter/p/ac91a4/32.png) [@paulfile](https://tech-community.robotics.abb.com/u/paulfile)\ **Post date:** [October 16, 2020, 7:27pm UTC](https://tech-community.robotics.abb.com/t/abb-s4c-cross-connection-quickteach/9752/3 "2020-10-16T19:27:40Z")
You are awesome . I’ve been looking for this for a long time.Thank you very much, I wish you good and good work 🙂