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[KB233]Starting Sequence of PcVue

PcVue miscellaneous
14 years ago
By RM
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Applies to:

PcVue version 6.10 onwards.
While the basic content of this article remains valid, details may have changed since it was written.
Summary:

This article lists the sequence of processes that occur when you start PcVue.
Details:

When PcVue starts up, the sequence of processes is as follows:

Sequence of processes:

Connecting internal variable (at ONE time)
Executing global program
Pre-loading program before and after communication
Executing program before communication
Connecting external variables
Waiting for at least one answer from each connect request
Connecting equipment variables
Waiting for at least one answer from each connect request
Connecting DDE variables
Waiing for at least one answer from each connect request
Connecting LNS variables
Waiting for at least one answer from each connect request
Connecting OPC variables
Waiting for at least one answer from each connect request
Executing programs after communication
Loading and starting expressions

Expression templates
Expressions on variables
Expression on alarms dependency

Loading associated actions
Loading formulas
Loading and starting scheduler
Loading events
Loading cyclics
Loading function keys
Creating list of associated labels
Loading populations
Loading log reports
Setting system alarms counters
Setting DDE server
Starting LAN server mode
Loading and executing global VB scripts (only for version 7.xx)
Starting WebVue
Opening initial mimic
Login default user
Display principal window
Indication that the thread UI has finished the startproject to VAR
Starting UI’s timer (200 ms)

Created on: 26 Nov 2010 Last update: 13 May 2024