MONITORING APPARATUS AND METHOD FOR MONITORING IMPORTANT PROCESS FOR SAFETY IN MACHINE

摘要

PROBLEM TO BE SOLVED: To enlarge important function on safety without additionally generating cost for a leading wire in a monitoring apparatus for monitoring a process important on safety on a controlling/driving apparatus in an apparatus comprising at least one operation controlling apparatus for a process being important on safety, and a process not important on safety, at least one safety monitoring and controlling apparatus in at least one safety inputting/outputting apparatus and an inputting/outputting apparatus being lengthily constituted for a process being important on safety. SOLUTION: A field bus system 2 connects an operation controlling apparatus 1 with each other and this operation controlling apparatus 1 connects a safety inputting/outputting apparatus 4 with a safety monitoring and controlling apparatus 6 each other. In addition, the safety inputting/outputting apparatus 4 and/or the safety monitoring and controlling apparatus 6 are arranged under a condition where a process being important on safety is practiced in use or under a condition where they are distributed into controlling/driving elements 7, 8, 9 and 10 which can be inputted.