Ok so I have a pump which has a DB9 port for external control.
From the user manual, I know what the pin configuration should be:
- Pin#2 and pin#3 should be attached to a current source (4 - 20 mA)
- Pin#6 and pin#7 should be linked together with a jumper
Depending on the current (4 - 20 mA), the pump will operate at a certain speed.
Assuming I have a standard db9/db9 cable, is it possible to hook the pump to the serial port of a PC computer and use the computer to send a certain current ? (in other words, control the pump speed from the computer)
From the user manual, I know what the pin configuration should be:
Depending on the current (4 - 20 mA), the pump will operate at a certain speed.
Assuming I have a standard db9/db9 cable, is it possible to hook the pump to the serial port of a PC computer and use the computer to send a certain current ? (in other words, control the pump speed from the computer)