描述
PLC系统的正常供电电源均由电网供电。由于电网覆盖范围广，将受到所有空间电磁干扰而在线路上感应电压和电路。尤其是电网内部的变化，入开关操作浪涌、大型电力设备起停、交直流转动装置引起的谐波、电网短路暂态冲击等，都通过输电线路到电源边。PLC电源通常采用隔离电源，但其机构及制造工艺因素使其隔离性并不理想。实际上，由于分布参数特别是分布电容的存在，绝对隔离是不可能的。
DIGITAL TECHNOLOGY DTI-1150 DTI-1150-013000BCRTM VME
Force SYS68/SIO-2 VME Board Module
Force SYS68K/CPU-30BE SYS68K/CPU-30BE/16/C2 VME Module
Micro Memory MM-6346 VME / VSB Compatible DRAM Memory
Micro Memory MM-6395 Memory Module VMEbus
Motorola MVME236-2 MVME-236-2 VMEbus DRAM Memory Module
Motorola MVME339 MVME-339 VME Control Board
Motorola MVME1600-011 MVME 1600-011 MVME1603 / MVME1604
Precision Filter VMF08 VMF08-F8010/F8100-HP1-M105 VME
Precision Filter VMF08 VMF08-F8011-TD6B Octal Filter
Precision Filter VMF08 VMF08-F8357-TD6B Octal Filter
Precision Filter VMF08 VMF08-F8705-LP1 Octal Filter VME
Semitool P228-4E SRD Spin Rinser Dryer Controller SRD
Sun CP1500-440 CompactPCI System Controller CPU Board
VMIC GE Fanuc VMIVME-3114 VMIVME3114 Analog I/O Board
VMIC GE Fanuc VMIVME-3115 VMIVME3115 12-Bit VME Module
Met One 203 Facility Particle Counting System Counter
