6.3 Detail-Setup
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6.3.3 Alarm:
Allows the configuration and entry of a character string (alarm string) that is transmitted
via the RS232/RS422- or Ethernet interface of the DMD-4 to peripheral devices like a
switch or recording system
Alarm strings can be defined for the main
area and for the three prealarm areas of a
camera channel. By clicking to the buttons
Mainalarm
and
Prealarms
you can switch be-
tween the different editor menus.
The sensor can transmit one data string after
alarm activation anf after Resettime has ex-
pired. Thus the peripheral devices connected
can be controlled differently for alarm activa-
tion and expiration of the Alarm Resettime.
Example: For an alarm a matrix-output switch
to a full picture of the corresponding camera.
After the expiration of the Auto Reset time, the sensor will send a command for quad
view.
The maximum string length is 40 characters. The characters are input in hexadecimal
notation, i. e. only characters from 0…9 and A…F are allowed.
This type of character-coding allows transmission of any text and control commands.
Important: The string is only transmitted when the box for ON respectively OFF is
checked. In the Prealarm menu the checkboxes define these prealarms, who have to
send out the defined strings.
The following example shows a character string that has been defined for sending an
alarm text:
Code (HEX)
02
41 6C
61
72
6D
20
54
6F
72
20
31 03
Character
STX
'A'
'l'
'a'
'r'
'm'
' '
'T'
'o'
'r'
' '
'1' ETX
In the submenu
Alarm interfa
ce at least one of the three possible interfaces has to be
activated. The menu to define the serial settings appears after clickin
g on ‚
Setup
„ :
IMPORTANT:
If
Dome-Tracking
(view S.15) is active
the settings of RS422/RS485 should
be in accordance with the data format
of the according dome protocol.
In standby mode the RS232 settings
of the DMD-4 are adjusted to the data
communication between PC and
Sensor (see ‚
Use COM
„ on page 18).
In the case of sending alarm strings
to peripheral devices the sensor
automatically switches to the interface settings which have been defined in this menu.
After transmitting the alarm string the DMD-4 automatically restores the original inter-
face parameters.
Using the LAN interface the IP address and the port number of the target unit has to be
defined. In case of an alarm the sensor will establish an IP connection, and will send the
alarm strings. After sending the connection will be closed.
