As a result, it is possible, for example, when the control unit 12 establishes a problem or the like at a specific field bus module 18, to activate {HEAD ~ the corresponding address connector} 46 which is pushed into {TAIL ~ the field bus module} 18 and cause the display unit 56 to show a specific signal 
is pushed into
As a result , it is possible , for example , when the control unit 12 establishes a problem or the like at a specific field bus module 18 , to activate { HEAD ~ the corresponding address connector } 46 which is pushed into { TAIL ~ the field bus module } 18 and cause the display unit 56 to show a specific signal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH