I am not sure whether such a conversion program is available as a Freebe,but many PLC programming packages provide the ability to convert SFC to Ladder i guess.
I hate to say this but i dunno why PLC Manufacturers hesitate to offer their programming software for free download on their Website.They should not restrict the access only to their customers or employees.As PLC programs are more Hardware dependent and not swappable with other manufacturer's Hardware i dont see any major threat to their business by doing this.This also applies to the User Manuals.They should be available for free download.
I hate to say this but i dunno why PLC Manufacturers hesitate to offer their programming software for free download on their Website.They should not restrict the access only to their customers or employees.As PLC programs are more Hardware dependent and not swappable with other manufacturer's Hardware i dont see any major threat to their business by doing this.This also applies to the User Manuals.They should be available for free download.