Danfoss ECL Comfort 210 Instructions Manual page 10

Instructions ECL Comfort 210 / 310, communication description
In order to contact the controllers on the local area network from
the internet it is necessary for the router to perform a port
translation.
Table 5-1 lists the addresses on the network. The "Local address"
can be used inside the network (private). The "Remote address"
must be used from internet side (public). The router/firewall must
be setup to handle the necessary port translations.
Table 5-1: Router/firewall port translation example
Network
1
1
ECA 1 (HMI A)
ECA 2 (HMI B)
2
2
ECA 3 (HMI A)
In the example, only the 4 ECL controllers that are connected to
the router are accessible from the Internet.
Be sure to select ports that do not interfere with other services or
firewalls running on the network or on the remote connection
network from which the ECL is contacted.
See
www.en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
for a list of standard port assignments.
Danfoss District Energy
Device Local address
192.168.1.100 port 502
ECL 1
ECL 2
ECL 3 192.168.1.102 port 502
ECL4 192.168.1.110 port 502
ECL 5 192.168.1.111 port 502
Remote address
1.2.3.4 port 503
1.2.3.4 port 504
--
--
1.2.3.4 port 505
1.2.3.4 port 506
--
Be careful when using port translation on a network where the
ECL controllers are using DHCP for Ethernet configuration.
DHCP is a dynamic protocol which sometimes can assign
different local addresses which will interrupt the port
translation.
VI.LG.V3.02
ECL 485 address
15
-- 1
2
-- A
-- B
4
15
-- A
DEN-SMT/DK
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