Hello Everyone,
I have a quick and (hopefully) simple question about DB9 controllers. I would like to have a DB9 connect into a Leybold Turbo Controller 700. I was told by the company that although the back of the box looked DB9, it establishes and tells the controller to start/stop based on electrical signals, not really transmit/receive connections. I was told the following:
Pin 7- 12V
pin 6- GND
pin 8- Start/Stop Signal (power 8 b/t 11-26V for system to start; remove power and it should stop)
3 & 4 are common
My main question is this: If I plug my DB9 straight cable into my computer and the control box, is there a capability to assign voltages to particular pins or is this difficult/impossible to do? Should I be building some sort of relay using a NI DAQ? What does everyone recommend? Thank you. Below is a pin picture I beleive, but I received these details from the company and wanted to ask this question on the side.