The following event parameters are sent in XML:

1. Number of the object from which the event is received.
2. Type of the object from which the event is received.
3. Name of the object from which the event is received.
4. Event name.
5. Set event parameters (from 0 to N).

Each event is sending in separate TransactionBlock with unique FunctionNumber parameter. FunctionNumber is specified automatically and it's unique for each event among all NEXT objects in the system.

Low bound of a FunctionNumber values range is specified by FunctionNumberMinValue registry key in the HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\AxxonSoft\PSIM registry section.

Sent XML packages look like:

<TransactionBlock>

    <TransactionDate>02.08.10</TransactionDate>

    <TransactionTime>19:53:51</TransactionTime>

    <FunctionNumber>1001</FunctionNumber>

    <FunctionName>Axxon PSIM Event ACCESS_IN</FunctionName>

    <ObjectId>1</ ObjectId >

    <ObjectType>Perco reader</ ObjectType >

    <ObjectName>Perco 1 reader</ ObjectName >

    <EventName>Access by ID</ EventName >

    <param1>0</param1>

    <param0>0</param0>

</TransactionBlock>

<TransactionBlock>

    <TransactionDate>02.08.10</TransactionDate>

    <TransactionTime>19:54:51</TransactionTime>

    <FunctionNumber>1002</FunctionNumber>

    <FunctionName>Axxon PSIM Event ACCESS_DENIED</FunctionName>

    <ObjectId>1</ ObjectId >

    <ObjectType>Perco reader</ ObjectType >

    <ObjectName>Perco 1 reader</ ObjectName >

    <EventName>Access forbidden</ EventName >

    <param1>0</param1>

    <param0>0</param0>

</TransactionBlock>