描述
控制规模还与输入、输出电路数有关。如控制规模为1024点，那就得有1024条I/O电路。这些电路集成于I/O模块中，而每个模块有多少路的I/O点总是有数的。所以，规模大，所使用的模块也多。
控制规模还与PLC指令系统有关。规模大的PLC指令条数多，指令的功能也强，才能应付对点数多的系统进行控制的需要。
FIREYE ED550-3 REMOTE CABLE
FIREYE 40BA1-1000 NSFP 40BA11000
Allen Bradley AB EB-700 Fireye Flame Monitor w/ EP260
FIREYE EUV1 FLAME AMPLIFIER MODULE
FIREYE E1R1 FLAME AMPHIFIER MODULE CARD FOR EB-700
One-day shipping available
FIREYE MEP100 PROGRAMMER MODULE RELIGHT OPERATIONS
One-day shipping available
FIREYE ED550-3 NSPP ED5503
Fireye MAUV1 U.V. Amplifier Module FFRT 4 Sec. *New*
Fireye 1 Micro Headphone Amplifier
Fireye E350-3 3′ Ribbon Expansion Cable
Expedited shipping available
FIREYE 60-1386-2 NSFP 6013862
FIREYE MED4 MicroM DAUGHTER BOARD W/DISPLAY OUTPUT.RRST
FIREYE MBPS100R USPP MBPS100R
