Operating Instructions

Chapter 1—Introduction
Compatibility with the TALON Automation System
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93
Siemens Industry, Inc.
Owner's Manual
588-682
Building Technologies
2019-01-25
Address Assignment
IP addresses are dynamically assigned by the DHCP server.
If an address changes or is not recognized, the field panel firmware lets you release
the dynamically assigned IP address and then reconnect the field panel to the DHCP
server, accepting a new IP address assignment in the process.
If there is no DHCP server at the site, you must manually assign static IP addresses as
part of the startup system configuration.
Physical Addressing
Each device on the BACnet/IP ALN has a hard-wired MAC address, which is printed
on the product label.
Port Numbers
The default TCP/IP port number for TALON BACnet/IP ALN communications is 5033.
You can change the TCP/IP port number if necessary.
NOTE:
All devices on the network must use the same TCP/IP port number.
You must specify a UDP port number when using multicast optimization. The default
UDP port number is
8.
Network Bandwidth
BACnet/IP ALN does not add significantly to your network overhead. Burst conditions
for this product occur during:
● Database downloading after coldstart.
● Database uploading.
● Trend data uploading.
● Burst of alarms or COVs.
Data Exchange
BACnet/IP ALN sends and receives TALON data in TCP/IP packets.
BACnet/IP ALN synchronizes global data between all devices. Each device runs a
global data replication engine that communicates with peer devices to:
● Exchange new and changed global data.
● Resolve conflicts when data does not match.
Device Naming Conventions
Field panel DNS node names are limited to 30 characters and cannot contain spaces.
Network Security
BACnet/IP ALN uses your intranet security within the firewall and a
username/password combination to restrict access outside the firewall. You can use
VLAN to improve internal security.