描述
尽管用PLC实现对系统的控制可不用外部设备，配置好合适的模块就行了。然而，要对PLC编程，要监控PLC及其所控制的系统的工作状况，以及存储用户程序、打印数据等，就得使用PLC的外部设备。故一种PLC的性能如何，与这种PLC所具外部设备丰富与否，外部设备好用与否直接相关。
LEYBOLD 761-600-G1 INFICON GAS COMPOSITION CONTROLLER
LEYBOLD SV25-109-03-51 USPP SV251090351
LEYBOLD, CHEMICAL FILTER, NEW, CFS40-65
LEYBOLD NT-450 USPP NT450
Leybold Trivac D16B Dual Stage Vacuum Pump PARTS REPAIR
One-day shipping available
Leybold Trivac D16B Vacuum Pump 12 Month Warranty
Leybold Turbovac 150V/150 Turbo Molecular Pump TMP 150C
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Leybold D16B Rotary Vane Vacuum Pump, 230/460V: Tested
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Leybold-Heraeus Trivac Vacuum Pump:
Leybold-Heraeus Trivac Vacuum Pump:
Leybold-Trivac (LH): D1 6B Pump w/ Groschopp Motor
