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Visual Basic Serial Comms To SLC500 ?
Source：Internet Author：Unknow Pubdate：2008-04-14  
mfreese (Mechanical) 8 Aug 02 16:29
Does anybody have sample code for direct communications with an AB SLC500 processor using RS232?

Any tips are greatly appreciated.

jorgemoreno (Electrical) 1 Sep 02 19:49
I have't try this dll, but I bump in to it when searching for SLC500 information. It might be useful for you, I hope it works, is ModBus.

http://www.pmcrae.freeserve.co.uk/modbus.html

besides, since you do not mention ModBus you might use this link to reference to DF1 protocol information and develop you VB app:

http://www.ab.com/manuals/cn/17706516.pdf


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