[Using a 1734-IB8 to Count Flow Meter Pulses]

Only needed to pick up a 33Hz pulse output. Wired it up how you specified using a 1734-IB4 and it worked great. Thanks for the help!

[Using a 1734-IB8 to Count Flow Meter Pulses]

Hello,

-I'm considering using an AB 1734-IB8 to count input pulses from a Micro Motion flow meter transmitter and, since I'm very new to this stuff, would like a little guidance as to how/if this can be done.

      My first concern is the wiring. The manual for the transmitter shows this wiring diagram for the specific model I'm using.

     

Here, B would represent the 1734-IB8 module. I'm not going to be using the analog loop. In addition to this wiring, terminals 9 & 10 on the transmitter will be wired to the same 24V and Common as my PLC modules. 

      The 1734-IB8 manual shows this diagram for wiring.

     

Should I consider the pulse output of the transmitter as a 3-wire device, connect terminal 3 of the transmitter to my 1734-IB8 input terminal and disregard the connection from terminal 4 of the transmitter, or should I just tie terminal 4 to my common?

Or, Should I consider my pulse output as a 2-wire device, tie terminal 3 of the transmitter to my 24V and terminal 4 to my input module?

My guess is the pulse output should be considered a 3-wire device with terminal 4 of the transmitter tied to my common, but I'd like a little bit of explanation with this.

-My second main concern has to do with the capability of the 1734-IB8 module to read pulses. More specifically, I would like to know what parameters of the module I need to research to see if it will be possible to read the pulses from my transmitter in the application I'm considering. If the 1734-IB8 can't be used, I would end up going to a high-speed counter card.

 

Thanks