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在60年代，汽车生产流水线的自动控制系统基本上都是由继电器控制装置构成的。当时汽车的每一次改型都直接导致继电器控制装置的重新设计和安装。随着生产的发展，汽车型号更新的周期愈来愈短，这样，继电器控制装置就需要经常地重新设计和安装，十分费时，费工，费料，甚至阻碍了更新周期的缩短。为了改变这一现状，美国通用汽车公司在1969年公开招标，要求用新的控制装置取代继电器控制装置，并提出了十项招标指标，即：
(1）编程方便，现场可修改程序；
(2）维修方便，采用模块化结构；
(3）可靠性高于继电器控制装置；
(4）体积小于继电器控制装置；
(5）数据可直接送入管理计算机；
(6）成本可与继电器控制装置竞争；
(7）输入可以是交流115V；
(8）输出为交流115V，2A以上，能直接驱动电磁阀，接触器等；
(9）在扩展时，原系统只要很小变更；
(10）用户程序存储器容量至少能扩展到4K。
Teco Gasstr?mungsw?chter DN Vp 305-1 GST25L019FM00
Teco Valvola eccesso flusso DN Vp 305-1 GST25L019FM00
Teco Válvula de exceso de flujo DN Vp 305-1 GST20LR0019MF
Telejet Módem 14400 Enviar & recibir Fax módem
Telejet Modem 14400 Envoyer & recevoir des Fax Modem
Telejet Modem 14400 Send & Receive Fax Modem
Telejet Modem 14400 Send & Receive Fax Modem
Telejet Modem 14400 Send- & Receive-Fax Modem
Telemecanique ASI TERV2 ASI - addressing and Diagnostic Terminal
Telemecanique ASI TERV2 ASI - adressage et Diagnostic Terminal
Telemecanique ASI TERV2 ASI - direccionamiento und Diagnóstico Terminal
Telemecanique ASI TERV2 ASI - direccionamiento und Diagnóstico Terminal
Telemecanique ASI TERV2 ASI - indirizzamento und Diagnosi Terminale
Telemecanique ASI TERV2 ASI-Adressier und Diagnose Terminal
Telemecanique ASI TERV2 ASI-Adressier und Diagnose Terminal
Telemecanique XBT P021010M163 XBTP021010M163 XBTP021010
Telemecanique XBT P021010M163 XBTP021010M163 XBTP021010
Telemecanique XBT P021010M163 XBTP021010M163 XBTP021010
Telemecanique XBT P021010M163 XBTP021010M163 XBTP021010
Telemecanique XBT P021010M163 XBTP021010M163 XBTP021010
Telxon PTC-740 De poche Ordinateur
Telxon PTC-740 Handheld Computer
Telxon PTC-740 Handheld Computer
Telxon PTC-740 Handheld Computer
Telxon PTC-740 Handheld Computer
Telxon PTC-740 Mano Computer
Telxon PTC-740 Portatile Computer
Temperatur Controler Ropex RES-407/230VAC
Temperatura Controller Ropex RES-407/230VAC
Température Contr?leur Ropex RES-407/230VAC
Température Contr?leur Ropex RES-407/230VAC
Temperature Controler Ropex RES-407/230VAC
Temperature Controler Ropex RES-407/230VAC
Temperature Controler Ropex RES-407/230VAC
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Thermokon SRC-04-FTT
Three-way valve VXF 31.39 PN10 Flange connection TOP VXF31.39 140731C Siemens
Three-way valve VXF 31.39 PN10 Flange connection TOP VXF31.39 140731C Siemens
Todas Bradley 1398-DDM-010 / 9101-1457 Servo Digital Drive
Todas Bradley 1398-DDM-010 / 9101-1457 Servo Digital Drive
Todas Bradley Analog I/O Módulo 1734-IE2V
Todas Bradley Analog I/O Módulo 1734-IE2V
Todas Bradley Logix 5561 Procesador 1756-L61 B Rev F01
Todas Bradley MPL-B1530U-EJ72AA
Todas Bradley MPL-B1530U-EJ72AA
Todas Bradley MPL-B430P-SK72AA
Toshiba Convertidor de frecuencia VFNC1S-2004PL-W
Toshiba Convertidor de frecuencia VFNC1S-2004PL-W
Toshiba Convertidor de frecuencia VFS11-4015PL-WP (R5)
Toshiba Convertidor de frecuencia VFS11-4015PL-WP (R5)
Toshiba Convertitore di frequenza VFS11-4015PL-WP (R5)
Toshiba Fréquence VFNC1S-2004PL-W
Toshiba Fréquence VFS11-4015PL-WP (R5)
Toshiba Fréquence VFS11-4015PL-WP (R5)
Toshiba Frequency converter VFNC1S-2004PL-W
Toshiba Frequency converter VFNC1S-2004PL-W
Toshiba Frequency converter VFNC1S-2004PL-W
Toshiba Frequency converter VFS11-4015PL-WP (R5)
Toshiba Frequency converter VFS11-4015PL-WP (R5)
Toshiba Frequency converter VFS11-4015PL-WP (R5)
Toshiba Frequency converter VFS11-4015PL-WP (R5)
Toshiba Frequenzumrichter VFS11-4015PL-WP (R5)
Total Control QPH-2D100-S2P-C Quickpanel Hand Held Display
Total Control QPH-2D100-S2P-C Quickpanel Hand Held Display
Total Control QPH-2D100-S2P-C Quickpanel Hand Held Display
Total Control QPH-2D100-S2P-C Quickpanel Hand Held Display
Total Control QPH-2D100-S2P-C Quickpanel Hand Held Display
Total Control QPH-2D100-S2P-C Quickpanel Main Held Affichage
Total Control QPH-2D100-S2P-C Quickpanel Mano Held Pantalla
Touch Panel ESA Bedienterminal XS7H2SF920200
Touch Panel ESA Bedienterminal XS7H2SF920200
Touch Panel ESA Operating terminal XS7H2SF920200
Touch Panel ESA Operating terminal XS7H2SF920200
Touch Panel ESA Operating terminal XS7H2SF920200
Touch Panel SEW TYP: DOP11A-30 Part No: 8248036
Touch Panel SEW type: DOP11A-30 Part No: 8248036
Touch Panel SEW type: DOP11A-30 Part No: 8248036
TURCK Proibus-DP FLDP - IN THE 8-0001
TURCK Proibus-DP FLDP - IN THE 8-0001
TURCK Proibus-DP FLDP - NELLA 8-0001
TURCK Proibus-DP FLDP - NELLA 8-0001
TURCK Proibus-DP FLDP-IM 8-0001
