Moxa ioLogik W5340-HSPA [120/194] Using the counter to get meter readings and statistics

ioLogik W5300 Planning and Assistance

5-12

Using the Counter to Get Meter Readings and

Statistics

Scenario: In water pipeline monitoring applications, water flow volume is a very important monitoring factor,

since it can be used as an indication of leaking. The sensor used to monitor water flow volume is called a flow

meter. Most flow meters have a pulse output of 4 to 20 mA signal output, which the user needs to convert to

water flow in their own PC software. In this case, we will show you how to use the ioLogik W5300’s virtual

channel function to convert the counter input signal to the actual flow volume.

Setup Procedure:

Step 1: Open ioAdmin and set up your ioLogik W5300 as follows:

• Connect DO-4 to DI-0.

• 1.2. Configure DO-4 for 1 Hz pulse output.

• 1.3. Configure DI-0 for counter input mode.

Step 2: We assume that DI-0 is already connected to the flow meter.

Step 3: Right click on DI-0 from the I/O Configuration panel.

Step 4: Select the Counter Scaling tab in the popup window.

Step 5: Configure the scaling formula and update the sampling time.

Step 6: Close the popup window.

Step 7: Choose virtual channel (shown as VC-00), and select the source channel. We use DI-00 for this

example.

Step 8: Select the operation mode from Max, Min., Average, Accumulation, Instantaneous, and Incremental.

Step 9: Close the popup window.