Visual Basic Serial Comms To SLC500 ?

[mfreese]

Does anybody have sample code for direct communications with an AB SLC500 processor using RS232?

Any tips are greatly appreciated.

 

[jorgemoreno]

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