描述
用户存储容量是指PLC用于存储用户程序的存储器容量。需要的用户存储容量的大小由用户程序的长短决定。一般可按下式估算,再按实际需要留适当的余量(20%-30%)来选择。存储容量=开关量I/O点总数X10十模拟量通道数X100绝大部分PLC均能满足上式要求。应当
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