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Release Independent
April 2018
ISA100 Gen X Radio Module User's Guide
Honeywell
33
Table 4 ASL Queued Packet Types
ASL Queue
Packet Type
Type
Definition
Used
ASL Queued
Indication
0
APDU indication pulled
from ASL queue on the
Radio board. APDU
indications are marked as
Rx packets in the Radio’s
ASL queue.
Yes
ASL Queued
Request
1
APDU request to be inserted
into the ASL queue on the
Radio board. APDU request
are marked as Tx packets in
the Radio’s ASL queue.
Yes
ASL Data Request
A data request packet format is sent from the Sensor to the Radio to request data to send to the
ISA100 stack. The Sensor issues a data request packet to request read information from the
Radio DMAP or to send a response to the Radio or to a network application that requested data
from the Sensor. The Data Request format sends scheduled periodic publish data.
Priority
Dst TSAP ID
Src TSAP ID
Contract ID
App Data
Length
App Data
U
I
NT8
UINT8
UINT8
UINT16
Contract ID
UINT8
N Bytes
Contract ID 0 is reserved to allow the Sensor application objects to send local (non- network)
request packets to the Radio. In addition, it allows the Radio application objects to send
response packet back to the Sensor, using standard application interfaces without the need to
establish formal contracts.
The TSAP ID for the Sensor TSAP is 0x02 (0xF0B2).
The TSAP ID for the IR provisioning TSAP is local 0x03 (0xF0B3).
ASL Data Indication
A Data Indication Packet indicates to the Sensor application process that an application data
packet has been received. Local indications sent from the Radio board either is