燃机卡件DS200TCEAG1A GE通用电气
¥888.00
燃机卡件DS200TCEAG1B GE通用电气
¥888.00
HONEYWELL CC-PAIH01
¥888.00
霍尼韦尔 CC-PAIH01系统备件
¥888.00
霍尼韦尔 CC-PAOH01系统备件
¥888.00
HONEYWELL CC-PAOH01系统备件
¥888.00
GE DS200TCEAF1BEC
当PLC运行时，是通过执行反映控制要求的用户程序来完成控制任务的，需要执行众多的操作，但CPU不可能同时去执行多个操作，它只能按分时操作（串行工作）方式，每一次执行一个操作，按顺序逐个执行。由于CPU的运算处理速度很快，所以从宏观上来看，PLC外部出现的结果似乎是同时（并行）完成的。这种串行工作过程称为PLC的扫描工作方式。
用扫描工作方式执行用户程序时，扫描是从条程序开始，在无中断或跳转控制的情况下，按程序存储顺序的先后，逐条执行用户程序，直到程序结束。然后再从头开始扫描执行，周而复始重复运行。
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ALLEN BRADLEY CONTACTOR 100-C30*00 SERIES B
BUSSMANN LOW PEAK FUSE 600V LOT OF 7 LP-CC-6 **NEW**
WATLOW INTEGRATED MULTI-FUNCTION CONTROLLER PM6L2EJ-AAF...
SIEMENS FUSE SWITCH DISCONNECT 690VAC 440VDC 3NP536
CUTLER-HAMMER WESTINGHOUSE 3 POLE CIRCUIT BREAKER FDB30...
ALLEN BRADLEY CIRCUIT BREAKER 140M-D8E-C16
TELEMECANIQUE OVERLOAD PROTECTION MODULE LB1-LC03M17 **
SIEMENS CIRCUIT BREAKER 8A 3RV1421-1HA10
ALLEN BRADLEY CONTACTOR 100-C60*00
MERLIN GERIN MULTI 9 C 1*** 480Y/277V CIRCUIT BREAKER MG...
SCHNEIDER ELECTRIC MULTI 9 C 1*** 480Y/277V CIRCUIT BREA...
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER 22*** 480V BU-JSA
FERRAZ SHAWMUT FUSE BLOCK 3 POLE 600V 66593
MERLIN GERIN MULTI9 D 1*** 480Y/277V~ MGN61353
ALLEN BRADLEY CIRCUIT BREAKER 140M-D8E-C10
AUTOMATIONDIREC?T 60 AMP 3 POLE INDUSTRIAL CIRCUIT BREA...
GOSSEN PROGRAM MEASURING TRANDUCER SINEAX V604 604-112
SIEMENS CIRCUIT BREAKER 1.2*** 3RV1421-0KA10
SIEMENS CIRCUIT BREAKER *** 3RV1421-1FA10
COSEL POWER SUPPLY 12V 2.1A 100-120VAC 50-60HZ R25U-12
MERLIN GERIN CIRCUIT BREAKER NSF150 A 150A
SIEMENS CIRCUIT BREAKER 0.32A 3RV1421-0DA10
FUJI ELECTRIC 100AMP CIRCUIT BREAKER BU-ESB3100
MERLIN GERIN CIRCUIT BREAKER NSF150 H 60A
SIEMENS CIRCUIT BREAKER 3RV1021-0GA15
SIEMENS CIRCUIT BREAKER 3RV1011-0FA10
MERLIN GERIN CIRCUIT BREAKER NSF150 H 40A
MERLIN GERIN CIRCUIT BREAKER NSF150 H 30A
MERLIN GERIN CIRCUIT BREAKER 50A NSF150 H
MEC INDUSTRIAL CIRCUIT BREAKER ABS 103U
MEC INDUSTRIAL CIRCUIT BREAKER ABS 102U
CUTLER-HAMMER CIRCUIT BREAKER HM2P250L5WS10
ALLEN BRADLEY 3-PHASE MODULE / 1 CLAMP 141A-VN3300R
ALLEN BRADLEY MANUAL MOTOR CONTROL 140M-C2E-B16 SER B
FUJI ELECTRIC CIRCUIT BREAKER 30A 240V BU-ECA2030
SIEMENS CIRCUIT BREAKER 5SX23 D10
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER 20A 480V BU-ESA 30...
GENERAL ELECTRIC CONNECTOR GE 360 P6 60A 250VAC ** NEW
TELEMECANIQUE CIRCUIT BREAKER GV2ME10
SIEMENS CIRCUIT BREAKER 3RV1011-0HA10
SIEMENS FUSE 12*** 690V 3NE1 0220-0 **NEW IN BOX**
MERLIN GERIN 240V MULTI9 D 3A 60187
MERLIN GERIN MULTI 9 C 2*** 240V~60V 60114
MERLIN GERIN MULTI9 C120H 240-415V CIRCUIT BREAKER 1840...
MERLIN GERIN CIRCUIT BREAKER MULTI 9 C60 C 6A 60141
ELECTRO-MATIC TIMER ONE HOUR ON DELAY UNIT B2646
TELEMECANIQUE BIMETALLIC OVERLOAD RELAY 600V 6A LRD106
ALLEN BRADLEY CIRCUIT BREAKER 1492-CB1G050 SER C *NEW I...
TELEMECANIQUE CIRCUIT BREAKER GV2ME16
TELEMECANIQUE CIRCUIT BREAKER GV2ME05
SIEMENS CIRCUIT BREAKER 16AMP 2POLE 5SM1111-6
TELEMECANIQUE CIRCUIT BREAKER STARTER PROTECTOR 32A GV2...
SQUARE D CIRCUIT BREAKER CLASS 9080 GCB 50
FUJI ELECTRIC 2 POLE CIRCUIT BREAKER 1*** 480V BU-ESA 20...
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER 1*** 480V BU-ESA 30...
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER 40A 480V BU-ESA 30...
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER *** 240V BU-ECA 300...
FUJI ELECTRIC 3 POLE CIRCUIT BREAKER 80A 480V BU-ESA 30...
FERRAZ FUSE HOLDER 32A ST10 B0 81 145 ST10B081145
ABB CIRCUIT BREAKER 3 AMP 1 POLE S203 K3A S203K3A
MITSUBISHI CIRCUIT BREAKER 3POLE 1*** NF30-SP
ALLEN-BRADLEY CIRCUIT BREAKER 1492-CB3 H 200
FUJI ELECTRIC 2A CIRCUIT PROTECTOR CP32FM/2
FUJI ELECTRIC *** CIRCUIT PROTECTOR CP32FM/5
ALLEN-BRADLEY 10A CIRCUIT BREAKER 1492-CB3 H 100
CRYDOM SOLID STATE RELAY A1225
ABB CIRCUIT BREAKER UXAB 727131 R 103 UXAB727131R103
SIEMENS CIRCUIT BREAKER 3RV1011-1HA10
SIEMENS CIRCUIT BREAKER 3RV1021-4AA10
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