Introduction

The LON library is an extensive TwinCAT PLC library for data exchange with LON devices. The communication with these devices is realized via SNVTs (Standard Network Variable Types). These SNVTs are defined in the LONMark (see also LONMARK and LONMARK Resources Files). For each SNVT there is a function block for sending and another function block for receiving.

All function blocks from the library must be called in the same task.

This library should only be used in conjunction with a KL6401 (LON master terminal).

The SNVT must be configured with the KS2000 in the terminal.

Linking the SNVTs is done with a LON configuration tool (e.g. LON Maker Echelon). This tool is not supplied by Beckhoff.