LNS DDE Server (DDE)

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Manual > Device Connection Guide > Echelon > Connection Procedure >

LNS DDE Server (DDE)

About the connection example

Please see below for an example of connection settings for this driver.

 

Applicable models etc.

explanation

Connection example [LNS DDE server]

This is an example of how to set up a connection to an iLon1000 using a LNS DDE server.

 

 

 

About Value Transformation Filters

The SNVT settings registered in the tag properties are intended to process data obtained from LON so that it is easy to handle on the client side. If "default" is selected, no processing will be performed. If anything else is selected, the data will be processed.

For example, if you select "SNVT_switch", when reading a value, if the raw data is "100.0 1", the value will be TRUE, otherwise it will be FALSE. When writing a value, if you write FALSE, it will write "0.0 0", and if you write TRUE, it will write "100.0 1".

 

attention

These specifications are not published as standard specifications. We provide paid support for customizing these conversion filters. Please contact us for details.

 

default (Handle raw data as is)

c_plc_0678

 

SNVT_switch (handled as a Boolean value)

c_plc_0679

 

 

attention

By adding options after the item name, you can specify the communication method for Lon.

This is a LNSDDE Server specification, so please refer to the LNSDDE Server manual for details.