Talk:PROFIsafe

How exactly can it achieve performance level e?

ISO 13849-1:2006 Table 1: "C Complex electronics, e.g. programmable" "Restricted to designated architectures and up to PL = d"

It seems pretty clear to me that ISO 13849-1 cannot give higher PL than d for programmable electronics.

Answer: ISO 13849-1 refers to IEC 61508 for complex programmable electronics to achieve PL = e. PROFIsafe has been developed and assessed using IEC 61508 long before ISO 13849-1:2006 was published. More recent updates of the PROFIsafe specification have been assessed using both standards. That's why PROFIsafe claims to achieve this performance level e. Same is true for safety-related programmable controllers that I know of. Commsafe (talk) 09:50, 24 February 2011 (UTC)

What are example uses of the protocol?
I am new to Industrial field bus systems and I am not sure what the article is describing. From what I gather the protocol is designed to be fail safe so end devices like emergency stop buttons and switches can be reliably hooked to a PROFIsafe network. Am I correct? What would happen if the network connection is severed? Is the fail safe nature of the protocol designed to stop the machine in the event the network goes down or is that dependent on the controller? Is the PROFIsafe protocol continuously polling the ststus of safety devices so it emulates a standard hard wired series safety circuit (eg. multiple normally closed series wired safety switches wired to a relay to hold a circuit closed)? 24.186.130.27 (talk) 14:48, 6 July 2011 (UTC)

Deletion
Is it possible to delete this entry PROFIsafe as there is now a Profisafe available... Felser (talk) 06:21, 26 July 2023 (UTC)