GEOFLO flow computer serial interface


Thread Starter

Amir Or

Hi list

I need to read data from GEOFLO 2 flow computer (Smith meter) into a PLC (Modicon micro).

I assembled the RS-232 cable and set all parameters according to literature but the PLC fails to read data.

The GEOFLO has D-15 connector and the Modicon micro has RJ-45 connector

I'll highly appreciate any wiring scheme and other tip regarding such connection.

best regards

Amir Or
Galil Engineering
Process Control & Instrumentation department
Check the wiring of your pin-outs on your RS-232 cable...and you might want to get the Black Box catalog and look for a nullmodem.

Walt Boyes

Walt Boyes -- Director of New Business Development
Branom Instrument Co.-- P. O. Box 80307-- 5500 4th Ave. So.
Seattle, WA 98108-0307
Phone: 1-206-762-6050 ext. 310 -- Fax: 1-206-767-5669 --
mailto:[email protected]

D. B. Jones Accurate Superior Scale Co.,

Best advice would to purchase a RS 232 Tester, Connects to DB-25. Available at Radio Shack of all places, includes instructions. Good Luck.