JaySharp90

CJ1M-CPU23 Reading a square wave

3 posts in this topic

Hello,

I have a flowmeter (macnaught flowmeter) which says that it outputs a 2 square waves. I am unsure how to connect the flowmeter to my plc (CJ1M-CPU23), do I need an additional unit or can I use the general purpose IO things mentions in the manual (IN6-9 say they are high speed counters)? Any advice would be appreciated.

Thanks,

Jay

Share this post


Link to post
Share on other sites

Depending on the pulse frequency, you should be able to use the CPU23 high speed counter inputs.

Check the W395 manual for specific information on the built in I/O.

Hope this will help.

1 person likes this

Share this post


Link to post
Share on other sites

Hi, Jay sharp

http://www.ia.omron.com/products/family/1649/?_ga=2.129153484.1311493843.1520247220-1650058651.1519883537    

I thing this link may help you 

CJ1W-CT021 high speed input module it have following features:

input frequencies to 500 kHz.

• 32-bit counting range.

• Digital variable noise filter provided.

• 5, 12, 24 V line driver inputs available.

• Supports simple, ring, and linear counting modes.

• Supports two external control inputs, and a total of 16 functions can be set: open gate, close gate, preset, reset, capture, stop/capture/reset combinations, reset enable, and more.

• One Unit supports two external outputs and 30 internal outputs with counter value zone comparisons, target comparisons, delays, holds, programmable outputs, and hysteresis settings.

• Pulse rate measurement function and data logging.

• Counter outputs and external control inputs can be used to trigger interrupt tasks in the CPU.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now