发表于:2004/9/4 23:16:00
#0楼
软件环境:WIN2KP,SP4,S7V52,SIM52
俺今天上午用LAD测试SFC1,想把PLC系统日期时间通过DB块与模拟量一起送到上位,搞了半天,用SIM搞通了,日期时间都对。
但是后来我再一次做程序时,无论如何SFC都不能调用。S7V52告诉我Unable to place the block。我看了看帮助:Description of Error:
The block cannot be inserted. Possible causes are:
1You are working online and the block you want to insert does not yet exist online.
2You want to insert a system function (SFC) or system function block (SFB) which come from a program library whose project version does not match the version of the current project.
3Organization blocks (OBs) cannot be interconnected using this application.
我认为是第2个原因造成的(不明白的是,刚开始测试时,我居然调用成功,后来一直失败)。
各位老大,我应该如何做才能解决这个问题呢?
俺今天上午用LAD测试SFC1,想把PLC系统日期时间通过DB块与模拟量一起送到上位,搞了半天,用SIM搞通了,日期时间都对。
但是后来我再一次做程序时,无论如何SFC都不能调用。S7V52告诉我Unable to place the block。我看了看帮助:Description of Error:
The block cannot be inserted. Possible causes are:
1You are working online and the block you want to insert does not yet exist online.
2You want to insert a system function (SFC) or system function block (SFB) which come from a program library whose project version does not match the version of the current project.
3Organization blocks (OBs) cannot be interconnected using this application.
我认为是第2个原因造成的(不明白的是,刚开始测试时,我居然调用成功,后来一直失败)。
各位老大,我应该如何做才能解决这个问题呢?
想起时正是忘记,V信:firedphoenix_he
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千古最难觅知音
面山闻水思伊人
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千古最难觅知音
面山闻水思伊人