User's Manual

Table Of Contents
Product Manual - RFID Reader LF60C SoliD 69
Chapter 7
Operation
7.4.3 HSMS option
The hardware version with an Ethernet interface uses the HSMS protocol. It works
as a HSMS server. That means that it waits for a connection inquiry of any HOST
PC.
TCP/IP: IP address xxx.xxx.xxx.xxx Port 3241
If a connection inquiry of any HOST takes place, the reader initializes the HSMS
connection, and the SECS-II messages defined in the message set are forwarded
from the reader to the respective HOST and vice versa.
It is possible to operate all readers connected to the network via one or several
HOST PCs.
But one HSMS reader can only be connected to one HOST at a time.
Use the Brooks Device Discoverer to change the TCP/IP settings.
7.4.4 HSMS implementation
HSMS defines the procedure for all message exchanges between entities across
the TCP/IP. The HSMS Connection Status Diagram - The HSMS status machine is
illustrated in the diagram below. The behavior described in this diagram defines
the basic requirements of HSMS:
A - NOT CONNECTED
The entity is ready to listen for or to initiate TCP/IP connections, but either has
not yet established any connections or all previously established TCP/IP
connections have been terminated.
CONNECTED
A TCP/IP connection has been established. This status has two sub-statuses, NOT
SELECTED and SELECTED.