Communication with programming language with Omron PLC

[firouz]

hi everybody !
I want to connect with a Omron PLC ( CJ1M ) with Visual Basic Language and read/write some memory address. but I dont know How I can access to a momory address. for example , with pressing a button key , a data memory was set.
please help me.

 

[Archie]

If you're using a serial connection to Omron with Host Link Protocol, it is actually very easy.

There was a manual on the Omron web site that explained it very well, but I am currently at a loss of trying to locate it.

Here is a sample string to request 6 words of data starting at 205:

@00RR0205000641*


The checksum maybe the trickiest part, but it is actually easy.


Edit.... I have found the manual

http://www.omron247.com/doc/pdfcatal.nsf/0C8D974D07E8AA348525703700587B03/$FILE/M11W3421107.pdf

-or-

http://forums.mrplc.com/index.php?download=620

Check out section 2

 

[firouz]

Special Thanks

thank U very much for your suggestion !