private int Decode_Service_Request(ref Byte[] apdu, uint request_len, ref ACKNOWLEDGE_ALARM_DATA Ack_data)
{
int len = 0;
int section_length = 0;
UInt32 value = 0;
/* tag 0 - processIdentifier */
section_length = BasicalProcessor.Decode_Context_Unsigned(ref apdu, 0, ref Ack_data.ProcessIdentifier, len);
len += section_length;
/* tag 1 - eventObjectIdentifier */
section_length = BasicalProcessor.Decode_Object_Id(ref apdu, ref Ack_data.EventIdentifier.type, ref Ack_data.EventIdentifier.instance, len);
len += section_length;
/* tag2 EventStare */
section_length = BasicalProcessor.Decode_Enumerated(ref apdu, 2, ref value, len);
Ack_data.StateAcknowledged = (BACNET_EVENT_STATE)value;
len += section_length;
/* tag 3 - timeStamp */
section_length = BasicalProcessor.Decode_Context_Timestamp(ref apdu, 3, ref Ack_data.TimeStamp, len);
len += section_length;
/* tag 4 Acknowledgment Source */
section_length = BasicalProcessor.Decode_Context_Character_String(ref apdu, 4, ref Ack_data.Source, len);
len += section_length;
/* tag 5 - AcktimeStamp */
section_length = BasicalProcessor.Decode_Context_Timestamp(ref apdu, 5, ref Ack_data.TimeOfAcknowledgment, len);
len += section_length;
return(len);
}