User's Manual

CHAPTER 6 READER-HOST PROTOCOL

NANOSCANNER READER USER GUIDE • DOC # 8101029-000 REV A 59

GET HEARTBEATPORT

ET HEARTBEATPORT

The reader can be configured to periodically send out a heartbeat message to

the network. This heartbeat takes the form of a single UDP packet (Universal

Datagram Packet) broadcast out to the entire subnet that the reader is configured

for.

The Set HeartbeatPort command allows you to configure the actual port number

that this packet is sent out to.

Listening for this heartbeat can be used to initially locate a reader on a network

and subsequently make sure that the reader is still alive.

• The default port setting for this command is 3988

The format of the UDP packet is a single XML document detailing the reader:

<Alien-RFID-Reader-Heartbeat>

<ReaderName>Alien RFID Reader</ReaderName>

<ReaderType>Alien RFID Tag Reader (Class 1 / 915Mhz)</ReaderType>

</Alien-RFID-Reader-Heartbeat>

NOTE: Changes made with this command will take effect immediately.

Example

Command

Response

>Get HeartbeatPort

>HeartbeatPort=3004

Command

Response

>Set HeartbeatPort=10002

>HeartbeatPort=10002

ET HEARTBEATTIME

The reader can be configured to periodically send out a heartbeat message to

the network. This heartbeat takes the form of a single UDP packet (Universal

Datagram Packet) broadcast out to the entire subnet that the reader is configured

for.

The time interval between heartbeats can be assigned and retrieved using this

command.

• All intervals are specified in seconds.

• A setting of zero (seconds) will suspend the output of any further heartbeats.

• The default setting for this command is 30 seconds.

NOTE: Changes made with this command will take effect immediately.