Schneider Electric iEM3300, iEM3200 Communications via LonWorks, LonWorks communications overview

iEM3100 / iEM3200 / iEM3300 series user manual Communications via LonWorks

Chapter 6 Communications via LonWorks

What is in this chapter?

This chapter contains the following sections:

LonWorks communications overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 LonWorks communication implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Standard network variable types (SNVTs) and configuration properties for

reading data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Meter configuration properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Echelon LonMaker plug-in for data display and meter configuration . . . . . . . . . . . . 71

LonWorks communications overview

LonWorks communications is available on the iEM3175, iEM3275 and iEM3375.

The information in this section assumes that you have an advanced understanding of LonWorks communications, your communications network and the power system that your device is connected to.

Related topics

•See the LonMark International website at www.lonmark.org for more information on LonTalk protocol or LonWorks communications.

LonWorks communication implementation

External interface file (XIF)

The variables and configuration properties for the meter are documented in the external interface file (XIF). The XIF file is loaded onto the meter where your LNS (LonWorks Network Services) software can download it. You can also download the XIF file from www.schneider-electric.com if you need to manually add the XIF file to your software.

The LonMaker plug-ins

The plug-ins allow you to configure the meter and view meter data in Echelon LonMaker.

LED indicators for LonWorks meters

The LonWorks meters have two LonWorks status LEDs: the red service LED and the green communications LED.

Red service LED

This LED provides the status of LonWorks operations.

LED state	Description
The LED is off	The meter is configured. It may be online or offline.
The LED is flashing	The meter is unconfigured but has an application.
The LED is on	• The meter is unconfigured and without an application, or
	• There is a defective internal memory issue.

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