隔离，这是抗干扰的主要措施。PLC的输人、输出接口电路一般采用光电耦合器来传递信号。这种光电隔离措施，使外部电路与内部电路之间避免了电的联系，可有效地抑制外部干扰源对PLC的影响，同时防止外部高电压串人，从而减少故障和误动作。
PARIS HAT SHAPER
RELIANCE ELECTRIC AC DRIVE GV3000/SE
B & D WINSMITH 14CVD 152:1
ITT A-C PUMP 2000 SERIES 15 HP 2X1.5X9
GOOD YEAR HOT STOCK WATER BELTING 72X100
SEW EURODRIVE RF40LP56 ROTO-FLEX ROTARY GEAR LOCK
INGERSOLL RAND PUMP TYPE HC 10 HP
KOLLMORGEN GOLDLINE BRUSHLESS SERVOMOTOR M-605-B-A9-260
SEW EURODRIVE SNUGGLER FA80DT90L4BM62HR 190.42:1
ALLEN BRADLEY AC DRIVE ULTRA 3000i 2098-DSD-075X
GOOD YEAR HOT STOCK WATER BELTING 54X150
GOOD YEAR HOT STOCK WATER BELTING 60X127
GOOD YEAR CONVEYOR BELT 36X150
MODICON PROGRAMMABLE CONTROLLER 884 AS-884A-311
TAPE CASE SEALER WORKHORSE RM3-FCS
