Using VTS to test Event Notifications

[Babanz]

Hello,

I'm using VTS scripts now to test my bacnet server "protoype" and wanted to know if it is possible to use scripts to test Alarms and event notifications like the Alarm Acknowledgment.

My probleme is that i can't find a way to put data taken from a received packet into the ACK-request for example.

Regards.

[John Hartman]

VTS scrips are pretty limited as far as conditional operations go. Read other discussion items here for more informantion and a few suggestions.

You CAN do a little some passing from received to transmitted packets using script variables.

For example, int eh SETUP section of your script, declar a variable
SCHEDULE_1 = Schedule, 9999999 -- Analog (Real) Schedule object to be tested

Then you might have a TEST that creates a schedule object:
SEND (
PDU = Confirmed-Request
Service = CreateObject
OpenTag 0
Enum = 0, 17
CloseTag 0
)

EXPECT (
-- object created
PDU = ComplexAck
Service = CreateObject
Object >> SCHEDULE_1
)

The server returns the object ID of the schedule it created, and the >> stores it in the variable SCHEDULE_1

Then you could write to that schedule by using its value

SEND (
PDU = Confirmed-Request
Service = WritePropertyMultiple

Object = 0, SCHEDULE_1
OpenTag 1
Property = 0, 21026
OpenTag 2
Enum = 3
CloseTag 2

  Property = 0, object-name
  OpenTag 2
     Characterstring = "Real/Analog Schedule"
  CloseTag 2

CloseTag 1
)

EXPECT (
PDU = SimpleAck
Service = WritePropertyMultiple
)

In an EXPECT statement without >>, VTS will COMPARE the returned value to the variable:
SEND (
PDU = Confirmed-Request
Service = ReadProperty
Object = 0, SCHEDULE_1
Property = 1, Effective-Period
)

EXPECT (
PDU = ComplexAck
Service = ReadProperty
Object = 0, SCHEDULE_1
Property = 1, Effective-Period
OpenTag 3
Date DATE_NULL
Date DATE_NULL
CloseTag 3
)