Archive for category Installation

Why does my Honeywell UDC controller flash UNPLUG at me?

Honeywell UDC Controller.jpg

Honeywell UDC UNPLUG Error Message

People will fire up a new UDC 1/4 DIN loop controller, like a UDC2500 or UDC3200, and discover that the lower display periodically flashes an error code: UNPLUG. But what does it mean? Is something wrong?

A search of the pdf version of the manual hints that the Modbus Ethernet communications is involved:

The Ethernet status screen shows the network status of the Ethernet Link. This may be accessed either via Ethernet or via Infrared Communications. For example, if the Ethernet cable is unplugged, then the instrument cannot send up the EUNPLGED diagnostic message via Ethernet.

But the word UNPLUG is nowhere else in the manual.

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How to Measure Thermal Energy

As energy costs and environmental concerns continue to rise, we count on our facility managers to take control of building/factory energy consumption. To reduce their companies’ carbon footprints, facility managers have begun implementing energy management programs to control their systems, optimize efficiency, and manage expenses.

But how are they doing it?

Let’s say you are trying to cool your facility. There are two steps to determining how much energy is consumed in the process. Read the rest of this entry »

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How to install magnetic flowmeters in less than optimum conditions

Not all processes have optimal piping configurations. Learn how to identify alternative solutions for processes inhibited by piping constraints.

Siemens is hosting a free webinar on Wednesday, October 21 at 2pm EST.

In this 1-hour webinar, Siemens specialists will show you how the flowmeter can be installed and how this versatile instrument can be used to meet your application needs. They will be discussing the installation guidelines for process piping that can enhance your flowmeters’ performance.

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Does ultrasonic level measurement work with a standpipe?

The easy answer: Yes.

But in a recent webinar on choosing the best level technology for your application, the more specific answer is this: Yes, AS LONG AS you pay attention to the unit specs and a pretty simple rule of thumb.

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