Depending on you Safety requirements.
there are many posts about this - please search seperately.
the E/stop Input, into your PLC should perform two functions - this should be an Auxillary contact - Preferably from a safety relay.
1. to stop the PLC Internal processes
- motors - cycle - or what ever else the PLC controls
2. an Indication to the PLC that an E/Stop has been pressed.
the safety should operate seperately and not be dependant on the PLC changing state of outputs
your 'L1 as well?' query can not be answered correctly - sorry
there are many posts about this - please search seperately.
the E/stop Input, into your PLC should perform two functions - this should be an Auxillary contact - Preferably from a safety relay.
1. to stop the PLC Internal processes
- motors - cycle - or what ever else the PLC controls
2. an Indication to the PLC that an E/Stop has been pressed.
the safety should operate seperately and not be dependant on the PLC changing state of outputs
your 'L1 as well?' query can not be answered correctly - sorry