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Panel Meter Communication Library FAQs

Last updated on December 19th, 2009 – Be the first to comment

What are the Optional Timing Parameters on Initialize.VI for?

In modbus communications via the RS-485 bus, there are required delays between messages on the bus which are based on the serial baud rate. Sometimes it is desirable to insert additional delays to account for noise, slow settling, slow device response or other factors. The Optional Timing Parameters also include read more »

Panel Meter Communication Library Documentation

Last updated on December 19th, 2009 – Comments Off on Panel Meter Communication Library Documentation

Documentation for the LabVIEW Panel Meter Library:

Setting Up an RS-485 Network to a PC

Last updated on August 25th, 2009 – Be the first to comment

RS-485 communication has been around for a while, but in case you’re just getting started, you may find the following information helpful.

There are four steps in setting up an RS-485 network to a PC serial interface:
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RS-485 Serial Communication FAQ

Last updated on August 4th, 2009 – Be the first to comment

What is RS-485 Serial Communication?

RS-485 serial communication is an industry standard communications method read more »

Process Controller Communication Library Documentation

Last updated on March 5th, 2009 – Comments Off on Process Controller Communication Library Documentation

Documentation for Love B Series, Omega 7xxx Series and Delta DTB series Process Controller Communication Libraries:

Documentation for Love C Series, Omega 7xx Series and Delta DTA series Process Controller Communication libraries:

Process Controller Communication Library FAQs

Last updated on March 5th, 2009 – Be the first to comment

The installation seemed to go ok, but I can’t find the libraries in LabVIEW?

If LabVIEW was open when you ran the install program, have you closed and re-opened LabVIEW as instructed by the installation program? The libraries can be accessed by right-clicking the block diagram and looking under the User Libraries pallette or by looking under the LabVIEW Help menu.

Also, the installation program places the libraries in the most current version of LabVIEW installed on the computer. Check to make sure you have opened this version of LabVIEW.

Why do I receive the error “Device Reports Exception Code: 3 – Illegal data” when trying to write Process Value (PV) limits, Alarm limits, PV offset, etc?

If you are otherwise able to communicate with the process controller (which is probably true if you received an Exception Code as your reply), this is usually caused by read more »