cortech datalog 3 Benutzerhandbuch
Datalog 3 User Manual - Page 7 of 66
CORTECH DEVELOPMENTS LTD
A Zone
A zone on the Datalog system is any sensor(s) on a site that are linked to a single input point on a field
panel. Types of sensor include: door contacts, passive infra-red sensors (PIR), Guardwire zones, panel
cabinet tampers etc.
panel. Types of sensor include: door contacts, passive infra-red sensors (PIR), Guardwire zones, panel
cabinet tampers etc.
Two sensors on double-leaf doors could be wired to the panel as two separate inputs and therefore two
separate zones, or wired in series to a single input as 1 zone.
separate zones, or wired in series to a single input as 1 zone.
A zone is normally enabled so that any activation of the zone’s sensor will generate an alarm and/or
may cause one or more relays to energise. However a zone can be inhibited so that an alarm is not
generated when the sensor is activated and any relays assigned will not be energised.
may cause one or more relays to energise. However a zone can be inhibited so that an alarm is not
generated when the sensor is activated and any relays assigned will not be energised.
A zone has a number of attributes. The equipment provider at installation sets these up.
The attributes include:
A text description
An input type
An alarm type
An icon type
A position on up to 3 maps
Alarm help text.
An input group
An output group
A priority number (0-255, 255 is highest priority)
Input Type
The input type options are:
Normally Open
Normally Open allows the input to be configured for use with
normally open devices.
normally open devices.
Normally Closed
Normally Closed allows the input to be configured for use with
normally closed devices.
normally closed devices.
Non-existent
Any unused inputs within the Datalog system are normally set to
non-existent.
non-existent.
Normally Open Auto-enable
Normally Closed Auto-enable
In addition to an input being Normally Open or Normally Closed, the input can have an auto-enable
feature.
feature.
Each zone has an inhibit timer that can be set to enable the zone after a predetermined number of
minutes. The zone remains inhibited even if the zone is returned to a secure state until the timer expires.
minutes. The zone remains inhibited even if the zone is returned to a secure state until the timer expires.
This timed inhibit feature can be further enhanced by setting zones as 'auto-enable'. This is done using
the INPUT TYPE setting. If the auto-enable feature is ON for a zone, then the zone will auto-enable
when the inhibit timer expires, as before. The difference is that if a zone should reset before the timer
expires then the zone will auto-enable. E.g., a magnetic contact on a roller shutter door is set with auto
enable ON, and the inhibit timer is set to five minutes. The roller shutter zone will remain inhibited until
either the roller shutter is closed, securing the zone, OR the inhibit timer reaches zero after five minutes.
This 'auto enable' feature should only be used on stable state sensors, not on movement detectors such
as PIRs.
the INPUT TYPE setting. If the auto-enable feature is ON for a zone, then the zone will auto-enable
when the inhibit timer expires, as before. The difference is that if a zone should reset before the timer
expires then the zone will auto-enable. E.g., a magnetic contact on a roller shutter door is set with auto
enable ON, and the inhibit timer is set to five minutes. The roller shutter zone will remain inhibited until
either the roller shutter is closed, securing the zone, OR the inhibit timer reaches zero after five minutes.
This 'auto enable' feature should only be used on stable state sensors, not on movement detectors such
as PIRs.