Temperature Monitor using PLC and LabVIEW

Overview

Temperature Monitor using PLC and LabVIEW.  A consumer manufacturing company needed to monitor up to 64 temperatures on their product to verify the product complied with UL standards.

Solution

We developed a temperature data logger in LabVIEW to monitor 64 thermocouple channels.  The software interfaced with 2 existing Eaton PLC's.  This allowed the customer to reuse their existing hardware.  The software also allowed the user to zoom in on an area of interest, add annotations on the graph, and pause acquisition.

This program allowed the customer to submit test data that was compliant to UL standards.  This enabled the customer to perform this testing in-house as opposed to testing their product off-site.

Eaton ELC

Features 

Setup Screen

Thermocouple screen

The Thermocouple setup screen allowed the user to add thermocouples to the test setup.  The user could enter a description, the thermocouple address, and if it was enabled on the graph.

Data File

Sample Test data file.  Saved as a tab delimited file opened in Excel.

Result