为了完成控制策略，为了替代继电器，使用户等完成类似继电器线路的控制系统梯形图，而编制了一套控制算法功能块(或子程序)，称为指令系统，固化在存贮器ROM中，用户在编制应用程序时可以调用。指令系统大致可以分为两类，即基本指令和扩展指令。细分一般PLC的指令系统有:基本指令、定时器/计数器指令、移位指令、传送指令、比较指令、转换指令、BCD运算指令、二进制运算指令、增量/减量指令、逻辑运算指令、特殊运算指令等，这些指令多是类似汇编语言。另外PLC还提高了充足的计时器、计数器、内部继电器、寄存器及存贮区等内部资源，为编程带来极大方便。

New In Original Box ABB Inverter ACS550-01-012A-4 ( ACS55001012A4 )
From China


ABB ACS550-01-015A-4 ACS55001015A4
From Germany


ABB ACS550-01-023A-4 ACS55001023A4 + ACS-CP-A PANEL
From Poland


ABB ACS550-01-015A-4 ACS55001015A4 + ACS-CP-A PANEL
From Poland


ABB Frequenzumrichter ACS550-01-059A-4
From Germany


New Inverter ACS550-01-023A-4 for ABB
From China


New Inverter ACS550-01-031A-4 for ABB
From China


ABB ACS550-01-08A8-4 ACS5500108A84 + ACS-CP-A PANEL ! NEW IN BOX !
From Poland


New Inverter ACS550-01-045A-4 for ABB
From China


ASEA BROWN BOVERI ACS550-01-157A-4 NSFP ACS55001157A4



ABB Inverter ACS550-01-012A-4 ( ACS55001012A4 ) NIB !
From China


ABB Inverter ACS550-01-023A-4 ( ACS55001023A4 ) NIB !
From China


ABB Inverter ACS550-01-015A-4 ( ACS55001015A4 ) NIB !
From China


ABB ACS550 ACS550-U1-038A-4+B055 20 Hp, 25 Hp, ACS550, VFD, N12



ABB ACS550-U1-125A-4 AC INVERTER DRIVE 100HP 75KW 3PH 48..63HZ 380...480VAC



ABB AC DRIVE 40 HP ACS550-U1-059A-4 ACS550U1059A
Customs services and international tracking provided


ABB Inverter ACS550-01-023A-4 (ACS55001023A4) NIB
From China


ABB ACS550-U1-015A-4 ACS550U1015A4
From Germany


ABB Inverter ACS550-01-012A-4 (ACS55001012A4) NIB
From China


ABB Inverter ACS550-01-015A-4 (ACS55001015A4) NIB
From China


NEW ABB ACS550-U1-03A3-4 DRIVE ACS550U103A34



ABB inverter ACS550-01-06A9-4(380V/3KW)



NEW ABB inverter ACS550-01-031A-4 15 KW 380V



NEW ABB inverter ACS550-01-023A-4 11 KW 380V



NEW SEALED ABB ACS 550-U1-012A-4 AC Drive 7.5 HP 480VAC ACS550U1012A4
Customs services and international tracking provided


ABB ACS550-U1-023A-4 AC Drive, ACS550 Series, 15HP *GOOD PULL*



ABB ACS550-U1-072A-4 ACS550 Series AC Drive 480V AC 3PH 50HP 72A *WARRANTY!*



ABB ACS550-U1-015A-4 ACS550U1015A4 DRIVE
From Malaysia


ASEA BROWN BOVERI ACS550-U2-368A-4 USPP ACS550U2368A4



ABB ACS550-U1-08A8-4



ABB ACS550 23 Amp Drive Part# ACS550-U1-023A-4 Used



NEW ABB ACS550-U1-038A-4 ACS550U1038A4



ASEA BROWN BOVERI ACS550-U1-04A1-4 USPP ACS550U104A14



ABB ACS 550-U1-023A-4 15HP DRIVE 380-480 VAC 3PH PN 550U1023A4



ASEA BROWN BOVERI ACS550-U1-04A1-4 NSPP ACS550U104A14



Newly listedABB ACS550-U1-03A3-4 1.5HP BRAND NEW NEVER USED!





ASEA BROWN BOVERI ACS550-U1-012A-4 USPP ACS550U1012A4



ABB USED ACS550-01-124A-4 PLC (AB7)
From China


NEW ABB ACS550-U1-023A-4 ACS550U1023A4 15HP Drive



ABB ACS550-U1-023A-4 ACS550U1023A4 15 Hp Drive CSQ






Honeywell M6284F1013-S Modutrol IV Motor Actuator 24V 15VA NEW



HONEYWELL M6284D1032-F *USED*



ABB PC-D232 3BHE022293R0101
From Australia


ASEA BROWN BOVERI 3BHE004468R0011 NSFP 3BHE004468R0011



ASEA BROWN BOVERI 3BHE003379R0003 NSFP 3BHE003379R0003



ASEA BROWN BOVERI 3BHE003379R0005 NSFP 3BHE003379R0005



Boston Harbor 3Lt White Flush Mount Fixture R0101-3L



ASEA BROWN BOVERI 3BHB002916R0101 USPP 3BHB002916R0101



ONE ABB 3BHE025883R0101
From China


Used ABB VOLTAGE MEASURING SCALING CARD PCB 3BHB002916R0101



HARDWARE RESOURCES ELEMENTS TRANSITIONAL PAPER HOLDER BHE3-01DBAC-R 6/CTN BRONZE



HARDWARE RESOURCES ELEMENTS TRANSITIONAL ROBE HOOK BHE3-02SN-R 6/CTN NICKEL



HARDWARE RESOURCES ELEMENTS TRANSITIONAL ROBE HOOK BHE3-02DBAC-R 6/CTN BRONZE



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL BAR BHE3-04SN-R 6/CTN NICKEL



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL BAR BHE3-03DBAC-R 6/CTN BRONZE



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL BAR BHE3-04DBAC-R 6/CTN BRONZE



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL RING BHE3-06SN-R 6/CTN NICKEL



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL RING BHE3-06DBAC-R 6/CTN BRONZE



HARDWARE RESOURCES ELEMENTS TRANSITIONAL PAPER HOLDER BHE3-01SN-R 6/CTN NICKEL



HARDWARE RESOURCES ELEMENTS TRANSITIONAL TOWEL BAR BHE3-03SN-R 6/CTN NICKEL



Used ABB 3BHB004661R0101 PC Board 30029858 019 3BHB005258 PA6-GF25



Boston Harbor R0101-3L Flush Mount Ceiling Light Fixture, White



AEG Carbon Brushes BH2600R 220 BHE7-26 FIXTEC PLUS KM PH3 PH350RX2 PH3X 169
From United Kingdom


MINI ONE 1.4 (R50) ALTERNATOR (3 FIXING BOLT) FROM 05- BHE
From United Kingdom


ABB PCB PC Board 3BHB004027R0101 30027459/0059 GV C700 AE01 3BHB003152P201AEND A



ABB Servodrive DKM 03001 3ADM200121R0101 GEB
From Germany


ABB 3BHB003387R0101 5SXE 05-0151 IGCT MODULE
From China


ABB Servodrive DKM12001 3ADM200124R0101 GEB





YASKAWA JAMSC-B2803 POSITION CONTROL Fast shipping
From Korea, South


YASKAWA ELECTRIC JAMSC-B2803 USPP JAMSCB2803



YASKAWA JAMSC-B2803 B2803 POSITION CONTROL IS NEW 30 DAY WARRANTY



YASKAWA JAMSC-B2803 JAMSCB2803 Free Shipping Worldwide



YASKAWA JAMSC-B2803 JAMSCB2803 (real object photos)




**NIB**Yaskawa Output Module JAMSC-B1050V JAMSC-B1050
Customs services and international tracking provided



**NIB**Yaskawa Register Output JAMSC-B1070V JAMSC-B1070
Customs services and international tracking provided



Yaskawa Memocon-SC JAMSC-B1070 Register Output Module



Yaskawa jamsc-b1070



Yaskawa jamsc-b1051b



YASKAWA JAMSC-B268 JAMSC-B298 ``XLNT`` FAST SHIPPING
From Korea, South


Yaskawa jamsc-b1058



Yaskawa JAMSC-B1064 MEMOCON-SC Module 24VDC Output.



Yaskawa jamsc-b1011



Yaskawa jamsc-b1071



YASKAWA MEMOCON-SC JAMSC-B1072B-2 NEW FAST SHIPPING
From Korea, South


YASKAWA JAMSC-B2823 POSITION CONTROL Fast shipping
From Korea, South


Yaskawa JAMSC-B1072B-1 B1072B-1V CPU Module **NIB**



Yaskawa jamsc-b1073-1



Yaskawa MEMOCON-SC JAMSC-B2110A JAMSCB2110A PLC
From Philippines


Yaskawa JAMSC-B1071 Register Input lot of 5 working



Yaskawa JAMSC-B1065 24VDC Input Module working



Registro Output Yaskawa Memocon SC B670 MUX JAMSC-B
From Germany


YASKAWA ELECTRIC JAMSC-B1051B INPUT MODULE



Registratore Yaskawa Memocon SC B670 output MUX JAMSC-B
From Germany


Yaskawa JAMSC-B1064 Module 24VDC Output working



Yaskawa Memocon SC JAMSC-B1072B-1C D/A Converter B1072B
From Germany


YASKAWA COVER FOR JAMSC B1070 MODULE DF8100642



Yaskawa Memocon-SC JAMSC-B1081C Counter B1081C
From Germany


Yaskawa JAMSC-B1070 Register Output lot of 5 working



Newly listedYaskawa Memocon SC B670 Register Output MUX JAMSC-B
From Germany


Yaskawa Memocon SC JAMSC-B1051B 100VAC input B1051B
From Germany


Yaskawa MEMOCON-SC JAMSC-B2604 JAMSCB2604 PLC
From Philippines


YASKAWA COVER FOR JAMSC B1075 MODULE DF8100639



Yaskawa Memocon SC JAMSC-B1071 Register Input B1071
From Germany


NEW YASKAWA ELECTRIC I/O MODULE JAMSC B2732 JAPAN



Yaskawa Memocon-SC JAMSC-B1050 output 100VAC B1050
From Germany


Yaskawa Memocon-SC JAMSC-B1050 output 100VAC B1050
From Germany


YASKAWA ELECTRIC JAMSC-B1050 OUTPUT MODULE



Yaskawa JAMSC-B1074-1 B1074-1V D/A Module **NIB**



Yaskawa Memocon-SC JAMSC-B1081C Counter B1081C
From Germany


Yaskawa Memocon SC JAMSC-B1070 Register output B1070
From Germany


Yaskawa MEMOCON-SC JAMSC-B2605 JAMSCB2605 PLC
From Philippines


YASKAWA MEMOCON-SC JAMSC-B2600 NEW IN BOX Fast shipping
From Korea, South


YASKAWA MEMOCON-SC IO MODULE JAMSC-B2601 NEW Fast shipping

Juniper ERX-GE-MOD + ERX-2GE-IOA + 1000baseSX Transceivers
From Australia


Juniper ERX-GE-MOD 2-port GE LM ERX-1440 1410 710 310 90Day warranty - Free Ship



Juniper ERX-310 ERX-GE-MOD ERX-SERVICE-MOD-B EX3-1GSRP-MOD (SRP-SE10G)
From Australia


Juniper Networks ERX-GE-MOD-A



Juniper ERX-GE-MOD 2-port GE Line Module for ERX1440
From Germany


JUNIPER REF ERX-GE-MOD Unisphere 2-Port GE Line Module for the ERX-310
From Korea, South


NEW Juniper ERX-GE-MOD 2-port GE Line Module for ERX1440
From Germany



Juniper ERX-GEFE-MOD 1port GE or 8port 10/100 FE Line Mod ERX300 ERX700 ERX1400



Juniper ERX-2GE-IOA ERX-2XGE-APS-IOA 2Port SFP ERX1400 ERX700 ERX300 Free Ship



Juniper ERX-310 (EX3-CH310-FRU), ERX-HDE-MOD, EX3-1GSRP-MOD, ERX-8GEHDE-IOA
From Ukraine


NEW Juniper ERX-8GEHDE-IOA Works with ERX-HDE-MOD line module 8 Port GE IOA



Unisphere Juniper T3 Frame T3-3F ERX-700 ERX-1400 Mod
Free Shipping - 90 Day Warranty!


Juniper SRP-5G+ 5-Gbps switch fab Mod ERX-5ECC-SRP ERX Free Shipping!



Juniper ERX-IPSEC-MOD ERX-IPSECURE-MOD ERX-1440 Free Shipping 90Day Warranty



Juniper ERX-310 Router EX3-310DC1G-SYS ERX-GEFE256M-MOD 90Day Warranty Free Ship



Juniper ERX-FE2 2Port 10/100bT Mod for ERX300 ERX700 ERX1400 Free Shipping



JUNIPER ERX-OCXA256M-MOD ERX OC ATM LINE MODULE



Juniper ERX-GEFE256M-MOD 1-port GE or 8-port 10/100 FE 90 Day Hardware Warranty



Juniper ERX-OCXA256M-MOD ERX1440 OC3/OC12/DS3 90Day Warranty Free Shipping



Juniper ERX 705 710 ERX-UT3E3OCX-MOD Edge Router 90 Day Warranty - Free Ship



ERX-GIGESFP-IOA Juniper E Series GE Back Card



Juniper ERX GE/FE-8 GE_S_I/O Cardset ERX310 710 1410 90Day Warranty Free Ship



AUTHENTIC JUNIPER ERX-1410 MODULE ERX-SERVICE-MOD-B ERX 256MB SERVICE NGI6PV4



JUNIPER ERX-OCXA256M-MOD



JUNIPER REF ERX-2GE-IOA Unisphere 2+2-Port GE IOA for the ERX-310
From Korea, South


Juniper GE/FE-8 with FE-8 I/O for ERX700 ERX1400, working pull



Juniper Networks ERX-GEFE256M-MOD-B Module



Juniper ERX-1440 ERX-UT3E3OCX-MOD NGI2JK0EAB 90Day Warranty Free Shipping



Juniper ERX-SERVICE-MOD-B for ERS-310 ERS-1410
From Australia


Juniper ERX-SERVICE-MOD scalable Tunnel services, NAT and firewall capabilities



Juniper E Series Broadband Service Card (ERX-OC48ST16-MOD)



Juniper EX3-1GSRP-MOD (SRP-SE10G) Source Route Processor Module ERX-310
From Australia


JUNIPER ERX-1400 BASE 14 CHASSIS W/ERX-10G2GECC-SRP, GEFE256M-MOD, GIGESFP-10A



NEW Juniper Networks ERX-OCXA256M-MOD Module



Juniper Networks ERX-OCXA256M-MOD



Juniper Networks ERX-OCXA256M-MOD Module w/ 60 Day Warranty



JUNIPER REF EX3-1GSRP-MOD SRP module for the ERX-310
From Korea, South


JUNIPER REF GE/FE-8 Unisphere ERX-1400 1-Port GE or 8-Port 10/100 FE Line Module
From Korea, South


JUNIPER REF GE-M-I/O Juniper ERX-1400 Gigabyte I/O 2 port MM
From Korea, South


Juniper OC3-4SM_I/O 4Port SM IOA for OC3/OC12-ATM ERX-OCXA256M-MOD OC3/OC12-POS



Juniper Networks ERX-OCXA256M-MOD Supports 4 OC3/STM1 or 1 OC12/STM4 or 4 T3/DS3

Siemens 1HU3108-0AH01-Z Permanent Magnet Motor
From Germany


Siemens 1HU3108-0AH01-Z Permanent Magnet Motor
From Germany



Siemens Cincinnati Permanent Motor 1 HU3102-0AH01-Z_1HU31020AH01Z _ No Z #



SIEMENS SERVO MOTOR 1HU3108-0SH01-Z
From Canada


Siemens 1HU3104-0AH01-Z mit Haltebremse
From Germany


SIEMENS 1HU3104-0AH01-Z Servomotor Permanent Magnet 1 HU3104
From Germany


SIEMENS DC MOTOR 1HU3104-0AH01-Z
From Canada


Cincinnati Milacron 1 HU3102-0AH01-Z Perm Magnet Motor



Siemens 1HU3104-0AH 01-Z mit Haltebremse +Tacho GT9.06/420, Z : A31G45K2
From Germany


Siemens HU3054-0AC01-Z Servo Motor HU3054-OACO1-Z