Changing setpoint at user input times: MKS Multi Gas Controller 647C

[brendel2]

Raj,

Thanks so much for the help.  I was able to setup a working communication with the device!  I was not aware that in order to set the handshake more I physically had to cross several wires in the RS232 cable.  (ex. cut cable, solder channel 2 to 3, 3 to 2, etc.)

Thanks again,

-Mike

[aditipradhan]

Hello Mike,

I'm facing a similar problem trying to connect to the MKS 647C. The loopback test works but I keep getting a timeout error when I try to communicate with the device. Could you expand on the wires you changed for the cable or lead me to a resource where I can figure out the procedure? It'd be of great help!

Thank you!

Aditi