Datalogic GWY-01-PBS-01, Справочное руководство

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GWY-01-PBS-01
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It is recommended that the voltage drop calculation be conducted on the RFID controller that
is farthest from the Gateway, as it will experience the greatest voltage drop.
2.4.4 Current Rating for Cables
The maximum current rating for the Subnet16™ network using Datalogic Automation's
cables and accessories (CBL-xxxx), is
4.0 A .
2.5 NODE ID CONFIGURATION & MANAGEMENT
Only RS485-based RFID controllers can be connected to a Gateway’s Subnet network and
each must be assigned a unique Node ID value between 1 and 16.
When an RFID controller is connected to the Gateway’s Subnet network, the Gateway will
query the new controller to obtain certain configuration values (specifically the Node ID
number). If the Gateway does not detect a Node ID conflict, it will “allow” the RFID controller
onto the Subnet network.
By using the
Cobalt HF Configuration Tag that is included with each RS485-based Cobalt
and HF-Series RFID Controller, or the Cobalt UHF Configuration Tag that is included with
each RS485-based Cobalt UHF-Series RFID Controller, the Node ID value can be
dynamically assigned by the Gateway or can be manually assigned by the user.
For the Gateway to dynamically assign a Node ID value to a controller, the controller must
first be initialized with the Node ID value of zero. This is the equivalent of having no Node ID
assigned.
NOTE
All Datalogic Automation RS485-based controllers ship with their Node ID
value set to 0.
When a powered controller (that is set to Node ID 0) is connected to the Subnet, it will not
initially be recognized by the Gateway until the Configuration Tag is placed in the antenna’s
RF field. After a few seconds the controller will display its new assigned Node ID value in
binary code from right to left or (top to bottom) using the five amber Node LEDs on the
controller.
When dynamically assigning a Node ID value for a new controller, the Gateway will either
assign the next available Node ID value or the value that the Gateway recognizes as offline
or “
missing ” – that is, a Node ID value that previously existed, but has since disappeared
from the network.
Because the Gateway stores a backup of each Subnet Node’s configuration, should an RFID
controller ever fail, a replacement controller can be installed quickly and easily. The new
controller will be automatically assigned the same Node ID value and configuration as the
replaced controller, provided the Configuration Tag is introduced to the antenna field after
startup and then removed.