CPU 产生一条增加模块的诊断信息且模块添加到 I/O 扫描中。 自动配置后移去所有模块:如果上电时所有模块都不存在，CPU 清除配置。下一此上电时允许添加模块且自动添加到配置中去。1969 年，美国数字设备公司(DEC) 研制出第一台 PLC，在美国通用汽车自动装配线上试用，获得了成功。

FALK 50R / 0436992 COVER, NIB

PARKER 2.00DSRM02.0 2″ BORE 2″ STROKE 250 PSI PNEUMATIC

COMAU PICO MAS43766 S43R4G03 LINEAR ROLLER BEARING, NNB

PRESCOLITE 33795 B-6 BAR HANGER, NIB

HOLOPHANE RBK400MHTA BALLAST REPLACEMENT KIT, NIB

ATC 7263AR4X4FRP RETRO-REFLECTIV?E BEAMSWITCH SENSOR, NI

COOPER CROUSE HINDS X8992-7 MINI-LINE SINGLE ENDED CONN

TURCK RKM8 RSC E80-17M E-CONNECT CORDSET, NNB

ALLEN BRADLEY 800MR-QTL24RK SMALL ROUND PILOT LIGHT, SE

NEMIC-LAMBDA EWS150P-24 POWER SUPPLY, NIB

CAPP/USA 20308 ELECTRIC ACTUATOR

KARL DUNGS EMA-418-2 ACTUATOR

CUTLER-HAMMER E51SNL PHOTOELECTRIC SENSOR, NNB

RITE-HITE GUARDIAN 1340 BARRIER CURTAIN CONTROLLER NNB

FUJI ELECTRIC BU-FHB3020 CIRCUIT BREAKER, NIB

RED LION CUB4L000 MINIATURE ELECTRONIC COUNTER, NIB

RED LION CUB4L800 MINIATURE ELECTRONIC COUNTER, NIB

SCHNEIDER TSXFPACC4 TERMINAL ISOLATION BOX, NIB

ADVANCE TRANSFORMER 79W8192 HIGH PRESS. SODIUM BALLAST

APOLLO CONBRACO PNEUMATIC POSITIONER, ?”, NNB

ROSS 2774B4001 3/2 NORMALLY OPEN SINGLE SOLENOID PILOT