Heartbeats – Echelon LonPoint Application and Plug-In User Manual

Page 47

Advertising
background image

The LonPoint Application and Plug-in Guide

4-9

Heartbeats

This tab appears as follows:

This tab allows you to set properties that determine the input and output
heartbeat rates and feedback sampling. This tab contains the following fields:

Input Heartbeat

This property determines the interval (in seconds) the
network variables that have the Use Heartbeat option
selected will wait for a heartbeat before detecting a
heartbeat failure. See Heartbeats, in Chapter 1, for
more information.

Use Heartbeat

Specifies whether or not heartbeat checking will be
used for the selected input network variable. If
checked for a given network variable, it indicates that
heartbeat checking will be used. The maximum time
between updates for network variables with
heartbeat checking enabled is set in the Input
Heartbeat

field. Click the ALL or None button to

turn heartbeat checking On or Off for all input
network variables, respectively.

Output Heartbeat

Determines the heartbeat send rate, in seconds, for
the Feedback output network variable.

Feedback Sample

Determines how often the hardware digital output is
sampled for the purpose of updating the Feedback

Advertising