Faced with setting up a connection RS-485 for a for OR cDAQ mass flow controller

I'm an absolute beginner from the ground up tries to connect the port RS-485 to a mass flow controller (MFC) Instruments Sierra for the NOR cDAQ.

The planned route of the person in front of me set up for the connection is:

(1) cable MFC COM1 to Interface Ethernet 4 ports for RS485/RS422 (DB-9 to DB - 9)

(2) Ethernet 4-port Ethernet Interface RS485/RS422 OR cDAQ cable

I'm fighting to understand exactly how the pins should be doubled for the 1st part of the interface. For MFC COM1 pinout is given below:

The pinout for DB-9 male, shown in the quick reference Guide series of NI is illustrated below:

I do not know what pins on the side MFC should connect to which pins on the side of the ENET-485. The manifesto is ground (PIN 7 to pin 1). In addition, I'm stumped. Try to read references online has just served to confuse me even more at this point...

Any help would be appreciated!

Follow-up: I bought a B and B Electronics ULinx USB converter to RS - 485 9 pin as well as a cable of Sierra Instruments. I was able to confirm communications between the cDAQ and the MFC using own Sierra HMI as well as through NOR-MAX provided.

Tags: NI Hardware

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