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Message Events

The Message Events dialog contains all event sensors that can trigger a camera action based on incoming messages.

Using Meta Events to Avoid False Alarms

In order to filter events, the camera provides an Event Logic: This dialog allows linking events to create logic events only if the linked events occur in a certain sequence and within the specified time frame. Another possibility to filter events is the Event Counter: It creates an event only if a certain number of events occurs within the specified time frame.

General Settings

Option

Description

Event Dead Time

The event dead time defines a period of time (0..3600 s) after an event, during which no new events from the same profile are recognized.

By defining an event dead time you can avoid, for example, that a complex action (person walks through the active image area) triggers multiple events.

Description of Event Sensor Types

Event Sensor Type

Description

Network Message

The camera can trigger an event when it receives an IP notification via TCP/IP:

  • Set the port at which you expect the notification.

  • Select the type of check:

    String Compare

    The event is triggered if the received text is identical to the text entered here.

    Regular Expression

    The event is triggered if the received text matches the regular expression entered here.

  • Enter the text or the regular expression.

  • Set the list of IP addresses of valid senders (separated by spaces). Use the following regular expression syntax to check the port number of the sender: /^10.1.0.123:42000/

Note

This feature is not available for Web and Basic models.

MxMessageSystem

The camera can trigger events when it receives a message via the MxMessageSystem from the MxBus or the network. Set the MxMessageSystem Name that is used to trigger the event. Note that you can define several message events for the same MxMessageSystem name. A valid MxMessageSystem-Name must start with a letter, it must not contain spaces, tabs or the characters "/", "%" or ".", the name is case-sensitive and the maximum length is 31 characters.

Serial COM In

The camera can trigger an event when it receives a message via the serial interface (RS232).

  • Select the type of check:

    String Compare

    The event is triggered if the received text is identical to the text entered here.

    Regular Expression

    The event is triggered if the received text matches the regular expression entered here.

    Binary Compare

    The event is triggered if the received text is identical to the binary value entered here.

  • Enter the text or the regular expression.

Note

If you perform a binary comparison, you need to enter special characters as hex notations of the ASCII code.

If you have selected a timestamp when setting up the serial interface, this timestamp is part of the message and will also be analyzed. If you want to filter according to the actual contents of the message, you can use the following regular expressions:

Filtering according to any part of the message

 
^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} .*<Ausdruck>

Filtering according to the start of the message

 
^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} <Ausdruck>

Filtering according to the end of the message

 
^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} .*<Ausdruck>$

Remember to replace <expression> by the expression you want to use for filtering.

Example 1. Filtering According to Any Part of The Message

Message contains "rror"

 

^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} .*ehl

Message starts with one or more letters, followed by a digit

 

^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} [A-Za-z]+[0-9]

Message ends on "Error!"

 

^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} Fehler!$

Memorizzazione della configurazione

Fare clic sul pulsante Imposta per attivare le impostazioni e salvarle fino al prossimo riavvio della videocamera.

Fare clic sul pulsante Default per caricare i valori di default di questa finestra di dialogo (opzione non presente in tutte le finestre di dialogo).

Fare clic sul pulsante Ripristina per annullare le modifiche più recenti che non sono state memorizzate in modo permanente nella videocamera.

Fare clic sul pulsante Chiudi per chiudere la finestra di dialogo. Durante la chiusura della finestra di dialogo il sistema verifica eventuali modifiche nella configurazione. Se le rileva chiede di memorizzare in modo permanente l'intera configurazione.

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