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 the field bus module 18 and cause {TAIL ~ the display unit} 56 to show a specific signal 
cause
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 the field bus module 18 and cause { TAIL ~ 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH