描述
PLC的I／O点的价格还比较高，因此应该合理选用PLC的I／O点的数量，在满足控制要求的前提下力争使用I／O点最少，但必须留有一定的备用量。通常I／O点数是根据被控对象的输入、输出信号的实际需要，再加上10％－15％的备用量来确定。
Honeywell TDC-2000 Multi-Function Controller Board MFC
Honeywell TDC-2000 Multi-Function Controller Board MFC
Honeywell TDC-2000 Basic Controller Board CB010
Honeywell TDC-2000 Basic Controller Board CB010
Honeywell TDC3000 HIgh Level Analog Input Card 51304754
Honeywell TDC3000 Analog Output Card REV D
5134672-150 HDW/J FW/D
Honeywell TDC3000 Smart Transmitter Interface (STI)
Honeywell TDC3000 High Level Analog Output (HLAO)
Honeywell TDC3000 Digital Output (DO)
Honeywell TDC3000 Digital Input (DI)
Honeywell TDC-2000 Basic Controller BACKPLANE
Honeywell TDC-2000 Basic MFC Controller Board
