描述
某些输入信号不进入PLC系统中有些信号功能简单、涉及面窄，如图6中的手动按钮、过载保护的热继电器触点等，有时就没有必要作为PLC的输入，将它们设计在PLC外围的硬件电路中同样可以满足控制要求。如果外部硬件电路过于复杂，则应考虑仍将有关信号送入可编程序控制器
KLA-Tencor SLX Reflected Light Assy 760-333022-000 Used
KLA-Tencor Preamp Assy. 775-334186-000 untested
KLA-Tencor CRS 2000 Power Supply working
KLA-Tencor Ref. Light Preamp 775-322364-000 untested
KLA-Tencor Quantox GSI Scanner PCB 3002004 working
KLA-Tencor AIT 2 Front Collector Assy. 0032131-001
Sony KLA-Tencor AIT 1 PowerHAD Camera DXC-950 CMA-D2
KLA-Tencor Left Cassette Nest, 5.2 740-694842-000 New
KLA-Tencor XP Objective Lens 0110155-000 Untested
KLA-Tencor Quantox Head Control Module 64020 working
KLA-Tencor 3XX-1 Image Rotator 760-321260-000 New
KLA-Tencor CRS1010 Solenoid PCB 000678 working
