可编程序控制器原理及应用的备课笔记的第一部分，对学习PLC的朋友来说会有很大的帮助。
Programmable logic controller and application of the principle of the first part of lesson notes on learning PLC' s friends will be of great help. (2009-04-14, WORD, 354KB, 下载3次)
MA1读出器RS232兼容输出16个ASCII字符每个ASCII字符代表4个2进制位的16进制数，因此整个输出相当于64个二进制位。
MO read-compatible RS232 output 16 ASCII characters ASCII characters each represent four of the two 16-band band, and therefore the entire output equivalent to 64-bit binary. (2005-06-06, WORD, 2KB, 下载335次)