Siemens MM8000 Integration Manual page 11

Integrating a DVR
Building Technologies
Fire Safety & Security Products
Parameters can be defined as fixed or variable text. For instance, a parameter
such as -Cnn that indicates the camera number (for example "–C12") can include
the fixed prefix -C and a variable part that defines the actual video input number
(see VIDEOIN_NO below) according to the selection in the runtime software.
Types of variable parameters
In the invocation line, variable parameters can be inserted using the %%vari-
able%% syntax. Three types of fields are foreseen:

Custom Variables, defined by the user in the XML file, e.g.: %%MYVAR%%

System Variables, automatically provided by the system based on runtime con-
ditions, e.g.: %%VIDEOIN_NO%%

System Conditions, or "if-clauses", determined by the system based on runtime
conditions, e.g.: %%IF_PTZ(...)%%
Custom Variables
The Custom Variables are created for user-defined configuration in Composer, for
example (editable IP address with a default and a help note):
<variable Name="IP" ScreenAttribute="RW" Description="IP Ad-
dress" DefaultValue="192.168.1.1" MinValue="" MaxValue=""
Note=" Please enter the DVR IP address" />
Custom variables with ScreenAttribute=RW (Read/Write) can be edited in Com-
poser starting from the DefaultValue, within the limits defined by MinValue and
MaxValue, and using Description and Note information as user help.
System Variables
The list of System Variables includes:
– VIDEOIN_NO – video input number (e.g. "1" or "112")
– DATE_TIME – date and time (CTime structure: "%d/%m/%Y - %H:%M")
 See http://msdn.microsoft.com/en-us/library/fe06s4ak(v=VS.71).aspx.
(e.g.: "DATE_TIME"  "16/03/2011 – 13:52")
– DATE_TIME[CustomFormatString] – customized date and time
 See http://msdn.microsoft.com/en-us/library/fe06s4ak(v=VS.71).aspx.
(e.g.: "DATE_TIME[%m/%d/%Y - %H:%M]"  "03/16/2011 – 13:52")
For all formats: in the event treatment, dates refer to the event's timestamp,
whereas in the plant browser, the current date & time is used.
– PARENT_HND – parent handle window
– POS_X – screen position top left
– POS_Y – screen position top left
– SIZE_X – window size width
– SIZE_Y – window size height
System Variables names cannot be used for Custom Variables.
System Conditions
The list of valid System Conditions includes:
– IF_PB(...) – If Plant Browser is active, then ...
– IF_ET(...) – If Event Treatment is active, then ...
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