Lodam Condensing Unit Controller Technical manual · LAN Local Area Network – Inside a house, building, company. PCB Printed Circuit Board ... Technical manual L32 thernet odule

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.


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.


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


DDNSdatabase

Web

addr

ess

www.testi

ng.D

DNS.org

IPad

dress

100.1

00.1.

55


Port 8000

Web pagefrom LOM320-1 Web page

from LOM320-1

IP address192.168.1.180

Port 80


Web addresswww.testing.DDNS.org


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.


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.


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.


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.


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.


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 ______


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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Documents

Lodam Condensing Unit Controller Technical manual · LAN Local Area Network – Inside a house, building, company. PCB Printed Circuit Board ... Technical manual L32 thernet odule