I don't know those specific devices so I did some googling around..
I found this page that could be useful
http://www.rkcinst-usa.com/manual_download.html
There are those:
D series COMMUNICATION IMDRE03_E3.pdf (1.16MB)
http://www.rkcinst.com/english/pdf_manu ... e03_e3.pdf
This document says communications is RS-485 or RS-422.
There is description how communications with controller works.
The document comes even with Basic source code for commications.
CB series COMMUNICATION IMCB03_E5.pdf (904KB)
http://www.rkcinst.com/english/pdf_manual/imcb03_e5.pdf
This says communications is through RS-485 at 2400, 4800, 9600 or 19200 bps. Document lists the commands to send to controller.
For interfacing RS-485 or RS-422 to a PC, you need to have a suitable adapter that converts the computer signals to those formats.
The documents showed RS-232 to RS-422 converter in use and the manufacturer web page lists that the same manufacturer makes COM-K (USB communication converter).
I quess that quite many commercially available RS-232 to RS-485/422 converters would work in this application. You need a converter than then write suitable software for the PC to make the communications to work (I don't know any ready made software suitable for this).
I don't know those specific devices so I did some googling around..
I found this page that could be useful
http://www.rkcinst-usa.com/manual_download.html
There are those:
D series COMMUNICATION IMDRE03_E3.pdf (1.16MB)
http://www.rkcinst.com/english/pdf_manual/imdre03_e3.pdf
This document says communications is RS-485 or RS-422.
There is description how communications with controller works.
The document comes even with Basic source code for commications.
CB series COMMUNICATION IMCB03_E5.pdf (904KB)
http://www.rkcinst.com/english/pdf_manual/imcb03_e5.pdf
This says communications is through RS-485 at 2400, 4800, 9600 or 19200 bps. Document lists the commands to send to controller.
For interfacing RS-485 or RS-422 to a PC, you need to have a suitable adapter that converts the computer signals to those formats.
The documents showed RS-232 to RS-422 converter in use and the manufacturer web page lists that the same manufacturer makes COM-K (USB communication converter).
I quess that quite many commercially available RS-232 to RS-485/422 converters would work in this application. You need a converter than then write suitable software for the PC to make the communications to work (I don't know any ready made software suitable for this).