Trying to find an answer to the following;
When referring to machinery safety. When do you need to have a Safety PLC separate from the Non-safety PLC?
You can buy a safety PLC which can combine the two functions. However I have read in process related industries that these should be kept separate. I have seen machinery where the safety and non safety related logic are installed in the the same physical PLC (albeit different programming areas (Siemens F CPU's)). So not sure when you need to transition to a separate PLC.
Thanks in advance.
When referring to machinery safety. When do you need to have a Safety PLC separate from the Non-safety PLC?
You can buy a safety PLC which can combine the two functions. However I have read in process related industries that these should be kept separate. I have seen machinery where the safety and non safety related logic are installed in the the same physical PLC (albeit different programming areas (Siemens F CPU's)). So not sure when you need to transition to a separate PLC.
Thanks in advance.