text: <s>[INST] Safety Instruction Safety L6XS for SafeOff (dual channel Output - single channel feedback input) Hello, I'm looking for a safety instruction in my L62S that can handle the safe-off functionality as follows:- Safe-Off switching done by 2 safety outputs (dual channel) to 2 relays on same SafeOff-board of K6000-drive- Feedback of Safe-Off status: 2 feedback contacts on SafeOff-board of K6000 drive are wired in series and put finally to 1 safety input. I thing about using the ROUT-instruction (redundant output instruction), that requires 2 feedback contacts together with 2 outputs.The 2 outputs are no problem. But for the 2 feedback contacts (inputs) in the ROUT-instruction, I thought about using for Feedback1- and Feedback2-field the same safety Input. So far so good.Then I read the help function of the Rout instruction again and saw that it will do Pulse-checking on both inputsignals (feedback1 and feedback2-inputs).If it makes pulse checking according SIL3/CAT4 on both inputs what will the instruction do when there are 2times the same input configured? Will it go in error?Can I have a similar safety instruction with no Pulse testing on the 2 feedback input signals, or a similar safety instruction for dual channel safety output with single channel feedback input? Regards,Frank V. [/INST] Hi Frank, Pulse checking is done by configuring the safety in- and outputs, it has nothing to do with the ROUT function.If the input is configured for testpulse and that input does not get the correct testpulse signal, it will fail. So your solution is to configure only one feedback signal for testpulse. Only one testpuls output goes to your feedback input. In your ROUT block, use the input for both feedbacks and you are ready. p.s.Testpuls is mainly used for more diagnosis. Your application will also work without testpuls. Success,Cya \\n </s>