Lodam Condensing Unit Controller
Technical manualVersion 5.0
LOM320-LMC340
Page 2
Contents1. Read this first . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Reading instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. User manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. How to connect to the LOM320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. Network requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2. Direct connection PC to LOM320 Ethernet Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3. Connection via a switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4. Connection via a router and wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5. Connection via the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Web server functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1. User accounts on the web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2. Managing user accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3. System view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4. Showing alarm status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.5. Viewing data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.6. Adjusting settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.7. Retrieving the datalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1. Connections on the Ethernet module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7. Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Technical manual LOM320 Ethernet Module for LMC340
Page 3
Page 4
1. Read this firstThe contents of this manual are subject to change
without notice. Lodam electronics holds the copyright to
this user’s manual. The user shall follow any instructions
given in this user manual entirely and not only partly. Any
non-following of this user manual result in exclusion of all
warranties, guarantees, and liabilities. Copyright© 2014 by
Lodam electronics a/s. All Rights Reserved.
Disposing of the parts of the controller:
INFORMATION FOR USERS ON THE
CORRECT HANDLING OF WASTE ELECTRI-
CAL AND ELECTRONIC EQUIPMENT (WEEE)
In reference to European Union directive 2012/19/EU and
the related national legislation, please note that:
1. WEEE cannot be disposed of as municipal waste and
such waste must be collected and disposed of sepa-
rately;
2. The public or private waste collection systems de-
fined by local legislation must be used. In addition, the
equipment can be returned to the distributor at the
end of its working life when buying new
equipment;
3. The equipment may contain hazardous substances:
the improper use or incorrect disposal of such may
have negative effects on human health and on the
environment;
4. The symbol (crossed-out wheeled bin) shown on the
product or on the packaging and on the instruction
sheet indicates that the equipment must be disposed
of separately;
5. In the event of illegal disposal of electrical and elec-
tronic waste, the penalties are specified by local waste
disposal legislation.
1.1. Reading instructionsThe following symbols are used to draw the reader’s
attention to different warning levels.
Important information.
Danger!! General danger.
1.2. User manualBefore installation the user should be thoroughly
familiarized with this user manual, especially with
purposes, installation and operation.
Special care should be taken when installing and con-
necting external equipment to the printed circuit board
and handling the module correctly according to protection
against ESD.
Technical manual LOM320 Ethernet Module for LMC340
Page 5
2. GeneralThe LOM320 Lodam Ethernet Module is an add-on com-
munication module for the LMC300 controller. It adds web
server functionality to the LMC300 controller, meaning
web interface, web access and web enabled.
This Web server functionality can be used with the
LMC320 Lodam Heat pump Controller or the LMC340
Condensing Unit Controller.
This gives the possibility to access the controller from the
intranet or the Internet via the Ethernet connection.
This manual describes how to establish communication to
the Web server.
The LOM320 has also other connections as two USB host
connections and a RS485 port; these connections are for
future use and are not described here.
3. Definitions
Product range
Definitions
DDNS Dynamic Domain Name System
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System (database with link between web sites and IP addresses)
ESD Electro Static Discharge
HW Hardware/electronics.
ISP Internet Service Provider
LAN Local Area Network – Inside a house, building, company.
PCB Printed Circuit Board
RS485 Hardware communication standard
UTP Unshielded Twisted Pair (cabling) – EIA568B standard
WAN Wide Area Network – the Internet
WiFi Wireless Fidelity
Page 6
4. How to connect to the LOM320There are several ways of establishing connection to the
web server in the LOM320 Ethernet Module. In the follow-
ing a number of ways are described.
4.1. Network requirementsA standard RJ-45 Ethernet UTP Patch cable, category 5e
or higher can be used to connect the LOM320 to another
Ethernet device such as a switch, a router (Gateway) or a
computer.
Please note: Every device connected to an intranet or the
Internet must have a unique IP address. If two devices or
computers have the same IP address none of them will
work and it may affect other computers as well.
An IP address consists of 4 groups separated by a ‘.’ like
192.168.1.180. To ensure good performance on the intranet
and the Internet a computer can only see a limited number
of the IP addresses on the intranet or Internet.
A Net mask is used to restrict how many IP addresses a
computer can see. To ensure a good performance most
devices use the Net mask 255.255.255.0 and this also
applies to the LOM320.
A Net mask of 255.255.255.0 means a device can only see
other devices where the first 3 groups are the same, i.e. a
laptop would have to have an IP address like 192.168.1.100
to be able to access the web server on the LOM320 at IP
address 192.168.1.180.
The LOM320 has a default static IP address of
192.168.1.180 and a fixed Net mask of 255.255.255.0. A
dynamic allocation of an IP address from a DHCP server is
not supported.
The LOM320 will therefore always have the same IP
address.The IP address of the LOM320 can be changed
on the LUP operating panel connected to the LMC300
controller or from LMT – Lodam Multi Tool PC software
tool.
4.2. Direct connection PC to LOM320 Ethernet Module
LMC300 +LOM320
LUP
PC
Figure 2. Direct connection to a computer.
The connection is with a normal RJ-45 Ethernet Patch
cable. On older computers a crossed Patch cable might be
needed.
The LOM320 and the PC must have IP addresses in the
same range, i.e. 192.168.1.xxx as they will else not be
able to establish communication. The IP address can be
changed on the LOM320 via the LUP operating panel or by
changing the IP address of the PC.
Changing the IP address of a PC using Windows i.e. to
192.168.1.170 can be done using the graphical user inter-
face or using a command like the following:
“netsh interface ip set address name = “Local Area
Connection” source = static addr = 192.168.1.170 mask =
255.255.255.0 gateway = 192.168.1.1 gwmetric = 1”.
4.3. Connection via a switch
LMC300 +LOM320
Switch
PC
PC
Figure 3. Connection via a switch.
Both computers and the LOM320 must have IP addresses
in the same range, i.e. 192.168.1.xxx and a Net mask of
255.255.255.0 or alternatively 255.255.0.0.
Technical manual LOM320 Ethernet Module for LMC340
Page 7
Other equipment on the other side of the switch may still
have access to the LOM320 as long as the IP address is
in the same range and a Net mask of 255.255.255.0 or
255.255.0.0.
4.4. Connection via a router and wireless
LMC300 +LOM320
PC
PC
Smart Phone
RouterWiFi
Figure 4. Connection via a router.
Connection using cables is like using a switch. However, if
the router’s built-in DHCP-server is active the IP addresses
the clients receive must be in the same range as the IP
address of the LOM320. A router is also called a gateway
(to the internet).
The LOM320 can be connected wirelessly to a router
using a cable to WiFi converter, for example the Netgear
WNCE2001 Universal WiFi Internet Adapter or similar
products.
To gain access wireless via WiFi, the router must be config-
ured so that wireless clients have the same IP addresses
as the cabled clients and they must be allowed to access
the cabled client LOM320.
On some routers, IP addresses may be reserved for
equipment like printers to secure that they always have
the same IP address even if they have a DHCP client. This
does not apply to the LOM320. Its IP address must be
outside of the DHCP IP address range.
4.5. Connection via the InternetAccess to the LOM320 web server is requested from both
the LAN side of the router and also from the Internet
(WAN).
LMC300 +LOM320
LMC300 +LOM320
PC
PC
Internet PC
Smart Phone
Router
WiFiWAN
LAN
LAN
LANLAN
Smart Phone
LAN
Figure 5. Connection to the Internet.
A router has a built-in firewall to protect the intranet
against intruders, viruses etc. from the Internet.
There must be an available internet connection via a
modem etc. specifically only for use by this router. Man-
ufacturers of routers generally warn against putting two
routers behind each other as they say they will interfere
with each others.
Some solutions have a combined modem and router in
the same product.
It is also possible to use a router which has access to the
Internet wirelessly using GSM, UMTS, Wimax and other
technologies.
To make a LOM320 web server accessible from the
Internet the routers firewall must be configured to allow
this. There are different names for this: DMZ, Virtual server,
port forwarding and more.
4.5.1. IP address and port number
Every computer or equipment on the internet must have
its own unique IP address and also every computer or
other equipment on an internal net must have its own
unique IP address.
When a computer or equipment accesses the Internet
through a router all traffic seems to be to and from the
routers IP address as it replaces the internal IP address
Page 8
with its own IP address. The router has a table of which
computer on the internal net has sent a request to a web
site and knows which computer on the internal net should
have the response from the web site.
To every IP address a large number of ports are available
(65535). A port is used for a specific communication
purpose: Web pages, emails, messenger services, VPN etc.
The web server of the LMC320 only listens to requests
sent to port 80 and ignores everything else. The web
server in most routers is also on port 80.
A browser expects by default to access a web server on
port 80 and it is not needed to specify this in the browser.
4.5.2. Fixed IP address – fixed web address
The router has a static IP address which doesn’t change
and it can always be accessed at the same IP address.
A web page can also be acquired which will link to this
specific IP address via Domain Name Service – DNS.
4.5.3. Dynamic IP address – dynamic web address
The router is connected to an Internet Service Provider
– ISP which uses DHCP – dynamic IP address handling.
After a power-off the router may receive a new IP address
thus making access to the router from the Internet difficult.
Many routers can use Dynamic Domain Name System
– DDNS to assign a fixed host and domain name to a
dynamic IP address. There are different DDNS service
providers but only the basic method is described here.
The router can be configured to connect to a DDNS service
at regularly intervals with its actual public IP address
based on the account settings. The DDNS service provider
has then the relationship between the web page name
and the corresponding IP address.
A web address can be acquired at the chosen DDNS
service provider. The web address is for some providers
constructed of two sections, a user part and a server
name. I.e. the sample web address www.testing.DDNS.org
where ‘testing’ is the user part and ‘DDNS.org’ is the DDNS
server name.
A site with one LOM320 web server could be configured
like this.
LMC300 +LOM320
Web addresswww.testing.DDNS.org:8000
DDNSdatabase
Web address
www.testing.DDNS.org
IP address
100.100.1.55
IP address100.100.1.55
Port 8000
Web pagefrom LOM320 Web page
from LOM320
IP address192.168.1.180
Port 80
Routerat site
Internet
Local net
Figure 6. One LOM320 web server at a site.
The following shows a site where two LOM320 web
servers are both connected to the same router. Each
LOM320 must have a unique internal IP address and
unique external port number.
LMC300 +LOM320
LMC300 +LOM320
Web addresswww.testing.DDNS.org:8000
DDNSdatabase
Web
addr
ess
www.testi
ng.D
DNS.org
IPad
dress
100.1
00.1.
55
IP address100.100.1.55
Port 8000
Web pagefrom LOM320-1 Web page
from LOM320-1
IP address192.168.1.180
Port 80
Web addresswww.testing.DDNS.org:8001
Web addresswww.testing.DDNS.org
IP address100.100.1.55
IPad
dres
s10
0.10
0.1.
55Po
rt80
01
Web
page
from
LOM
320-
2
IPad
dres
s
192.
168.
1.18
1Po
rt80
Web
page
from
LOM
320-
2
Routerat site
Internet
Local net
Figure 7. Two or more LOM320 web servers at a site.
Technical manual LOM320 Ethernet Module for LMC340
Page 9
Web address External port number External IP address Internal IP address Internal port
number
www.testing.DDNS.org 8000 100.100.1.55 192.168.1.180 80
www.testing.DDNS.org 8001 100.100.1.55 192.168.1.181 80
4.5.4. Port forwarding
Port forwarding means to open the firewall of the router
for one or more ports and route all traffic sent to this port
to a specific IP address on the LAN side of the router. This
could be to a computer, a server or a LOM320.
The router can be configured to route traffic for a single
port or a range of ports to a specific internal IP address.
A router can have a number of port forwarding rules. This
means there can be more than one LOM320 and other
public available equipment on one router, each accessible
with its specific port or port range.
The external port number and the internal port number
don’t have do be the same. I.e. external port 8000 could
be routed to internal port 80
Access to a router is normally protected by a username
and a password. Access can also be opened to be from
the Internet for remote configuration.
Following is port forwarding menus from some common
router manufacturers.
Page 10
Figure 8. Port forwarding or virtual server menu for a D-link
router.
A number of rules can be applied. More than one rule can
point to the same internal IP address.
Technical manual LOM320 Ethernet Module for LMC340
Page 11
Menu from a Linksys router:
Figure 9. Single port forwarding menu for a Linksys router.
A number of rules can be applied for single ports. A
different but very similar menu is used for a range of ports.
Page 12
Level one menu. Very similar to the Linksys and the D-link
Figure 10. Single port forwarding menu for a Level one
router.
Technical manual LOM320 Ethernet Module for LMC340
Page 13
5. Web server functionalityThe LOM320 features a web server which shows infor-
mation from the application running in the LMC300
controller. This can be the LMC320 Heat Pump Controller
and also other applications.
Data on the web interface depends on the actual applica-
tion running in the LMC300 controller. The data can both
be read only and adjustable settings.
The web server gives access to the units’ status, adjust
some settings or see if there should be alarms which
should be addressed.
5.1. User accounts on the web serverTo get access to the web server, a user log in with user
name and password is required.
There a two levels of users: End user and Installer where
the Installer has more privileges and can do additional
adjustment of the units’ settings.
Figure 11. Log in menu.
Default user name: admin.
Default password: admin.
The layout of the log in menu depends on the used
browser.
5.2. Managing user accountsAlthough there are only two user levels, there can be more
than one user in each level.
Figure 12. Managing user accounts.
A User with admin user rights can add a new user by
entering a name and clicking Add.
After login with a blank (empty) password the new user
can specify a password under the menu Change password
(recommended).
The default password for the admin account should also
be changed!Note: Write the new password down on a
note at the heat pump so there is still access for service
purposes later on!
Page 14
5.3. System viewThe system view gives a quick view of the system with the
basic readings.
Figure 13. System view LMC340 Condensing Unit Control-
ler.
5.4. Showing alarm status
Figure 14. Alarm overview of the LMC340 Condensing Unit
Controller.
5.5. Viewing data
Figure 15. User data for LMC340 Condensing Unit
Controller.
5.6. Adjusting settings
Figure 16. Changing the refrigerant in the LMC340
Condensing Unit Controller.
Please note: On some Internet Explorer browser versions it
might be necessary to activate the compatibility mode to
be able to edit the settings.
Technical manual LOM320 Ethernet Module for LMC340
Page 15
5.7. Retrieving the datalog
Figure 17. Retrieving the datalog of the LMC340 Condens-
ing Unit Controller.
Figure 18. Saving or opening the datalog file from the
LMC340 Condensing Unit Controller.
Figure 19. Datalog from the LMC340 Condensing Unit
Controller shown in Excel
Figure 20. Datalog from LMC340 Condensing Unit Con-
troller shown in LMT
Page 16
6. Technical data
6.1. Connections on the Ethernet module
Terminal Description
CN1 24 pin; connecting the LOM320 Ethernet module to the LMC300 controller
CN2 RJ-45; 10/100Mbit Ethernet connection
Other Connections for future use
Technical specifications
Description LOM320
Power supply Via option connector of the LMC300 controller
Temperature range Operation
-20 °C ~ +60 °C
Storage -30 °C ~ +60 °C
Relative humidity Max 95 %RH, non-condensing
Ethernet connection RJ-45; 10/100Mbit Ethernet connection. Use UTP Patch cable, category 5e or higher
Weight 45g
Dimensions 78 mm (w) * 92 mm (d) * 25 mm (h)
Mounting On the LMC300
7. Trouble shooting• Check LED of LMC300 and LOM320. Green LED on
LMC300 must be flashing. On the LOM320 pcb the green and red LED must be turned On . On the Ethernet connector of the LOM320 there are two communications LED’s where the orange LED must be on and the green LED should flash according to network traffic to the module.
• Check power supply to the LMC300.
• Check network cable. Check LED’s at both ends of the cable when connected and with power on.
• Check IP address of LOM320, Gateway (Router) and computer. The IP addresses must be in the same range, i.e. 192.168.1.xxx. On a PC with Windows the command ‘ipconfig /all’ issued from a cmd window will reveal the IP address of the computers Ethernet connection.
• Check net mask of computer. It should be 255.255.255.0. Net mask 255.255.0.0 will also work but this slows down the network traffic.
• Check configuration of the router if a router is used. The router must be configured with port forwarding to the IP address of the LOM320 module and the port setup must be to port 80 of the LOM320,
• Make a direct connection to a laptop. Check that the IP addresses are in the same range and the net work mask is correct. It may be necessary to set the IP address of the computer manually to the same range as the LOM320.
Technical manual LOM320 Ethernet Module for LMC340
Page 17
8. IndexA
Adjusting settings 14
C
Connection via a router and wireless 7
Connection via a switch 6
Connection via the Internet 7
D
Definitions 5
Direct connection PC to LOM320 Ethernet Module 6
H
How to connect 6
M
Managing user accounts 13
N
Network requirements 6
R
Retrieving the datalog 15
S
Showing alarm status 14
System view 14
T
Technical data 16
Trouble shooting 16
U
User accounts on the web server 13
V
Viewing data 14
W
Web server functionality 13
Page 18
9. NotesP address of the LOM320 ___.___.___.___ to ___.___.___.___
IP address of the computer ___.___.___.___
IP address of the router ___.___.___.___
External IP address ___.___.___.___
Web address __________________________
Port number range ______ to ______
Technical manual LOM320 Ethernet Module for LMC340
Page 19
Innovative and energy saving climate controlWhen it comes to climate control Lodam is one of the most experienced you can turn to. For more than four decades we have developed, produced and implemented electronic solutions dedicated to optimising applications like:
• Compressors• Condensing units• Heat pumps• Air conditioning• Refrigerated truck and trailer• Reefer containers
We know the importance of reliable, energy-efficient operation – and constantly push techno-logical boundaries to bring you the most innovative and forward-thinking solutions.
As part of the BITZER Group we are backed by one of the world’s leading players in the refrigeration and air conditioning industry. This alliance provides us with extensive network and application knowhow and allows us to stay at the forefront of climate control innovation. And to help ensure comfortable surroundings for humans and reliable protection of valuable goods anywhere in the world.
Lodam electronics a/sKærvej 776400 SønderborgDenmark
Tel. +45 7342 3737Fax +45 7342 [email protected]
For more information visit:
www.lodam.com
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