Description
PLC控制系统I/O分配,依据生产流水线从前至后,I/O点数由小到大;尽可能把一个系统、设备或部件的I/O信号集中编址,以利于维护。定时器、计数器要统一编号,不可重复使用同一编号,以确保PLC工作运行的可靠性。
ABB E32767 PURGING CONTROL BOARD E-32767
ABB 3HAC36191 BOARD 3HAC3619-1
SIEMENS 6SN1111-0AA00-0CB0 REACTOR 6SN11110AA000CB0
SPELLMAN HIGH VOLTAGE DC SUPPLY RHR30P60/C
BAYSIDE PRECISION GEARHEAD PG142-050 NEW 50:1
MAXON 2″ NATURAL GAS SHUT OFF VALVE 5000 SERIES NEW