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Topic: Arduino UNO + MKS Mass Flow Controller (Read 412 times) previous topic - next topic


Jan 29, 2019, 05:23 pm Last Edit: Jan 29, 2019, 05:28 pm by ATSS
Hi to all! I'm new in this forum.
My name is Alessandro and I'm a Chemist. I would like to interface Arduino UNO with some old MKS Mass Flow Controllers. They have a serial port with 15 pin and I konw the meaning of each one (in the follow):

1# MKS Test Point
2# Flow Signal Output
3# Valve Close
4# Valve Open
5# Power common
6# -15 VDC
7# +15 VDC
8# Set Point Input
9# No Connection
10# Optional Connection
11# Signal Common
12# Signal Common
13# No Connection
14# No Connection
15# Chassis Ground

I would like to use it like flow reader and/or like flow regulator.
Would it be possible? If yes, how must I proceed with  the connection and with the sketch?
Thanks to everyone who can help me!

Best regard,


Jan 29, 2019, 06:50 pm Last Edit: Jan 29, 2019, 06:52 pm by jremington
You need to know the voltage levels of the signals, and the meaning of that voltage level. If the signal is a serial signal, then you need to know the serial data protocol.

If they are not either 0 or 5V, then you need some sort of interface between the device and a 5V Arduino.




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