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主题:三菱比较置位问题?

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对于比较置位指令FNC53(DHSCS)书上有这么一句话:
     当多次驱动FNC53(DHSCS)或与FNC54(DHSCR)指令同时驱动时,对象输出Y2的高2位作为同一序号的软元件。
     这句话是什么意思?我现在没有条件做试验,所以搞不明白了,请朋友们帮忙讲解一下。多谢!!
     没人帮我回答吗?
最后修改:2004-3-6 13:35:08
04-03-05 14:31
Points to note:
a) It is recommended that the drive input used for the high speed counter functions; HSCS,
HSCR, HSCZ is the special auxiliary RUN contact M8000.
b) If more than one high speed counter function is used for a single counter the selected flag
devices (D) should be kept within 1 group of 8 devices, i.e. Y0-7, M10-17.
c) All high speed counter functions use an interrupt process, hence, all destination devices (D)
are updated immediately.
04-03-07 14:44

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