2N Helios IP Automation Manual v2.7 - Manual (Page 17)

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Parameters
Command efine the command ID to distinguish the command types. The – d
MulticastTrigger block responds to the SendMulticastRequest action only if the
command identifier is the same. Any text containing the A-Z, a-z and 0-9
characters can be used for identification. The Upper/Lower case must be
respected in the command name.
Password
efine the password to secure the command against unauthorised – d
access. The password must match the value defined in the SendMulticastRequest
action to which MulticastTrigger is expected to respond.
CheckTime
nable/disable the check of the command receiving time against – e
the time value included in the command message to eliminate attacks caused by
repeating of an already processed message. Synchronised time (via the NTP
server) on all command sending and receiving devices is required for this
function.
Valid values:
0 – message time is not checked
1 – message time is checked (enhanced security).
The parameter is optional, the default value is . 0
Variables
The MulticastTrigger event is generated whenever a mass command including the list
of user parameters (Params parameter, MulticastRequest action) is received. Each of
the parameters has a user-defined unique name and is available as a variable of the
same name in the MulticastTrigger block.
Example: Suppose a mass command generated by the MulticastRequest action is
received, in which Params=“AAA=123” is included. The MulticastTrigger event which
processes this command will automatically include value 123 for the AAA variable. This
variable can be referred to in the interconnected blocks.
Example
Event generated by receiving of a mass opendoor command:
Event.MulticastTrigger: Command=opendoor
Event.AudioLoopTest
The block defines the event generated after the loudspeaker and AudioLoopTest
microphone test (Audio Loop Test) is performed. The subsequent actions are executed
based on the test result.