Mitsubishi Heavy Industries RM-CGW-E1 User guide

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M-ACCESS Gateway
Setup Manual
Product code: RM-CGW-E1
Mitsubishi Heavy Industries Thermal Systems, Ltd.

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Table of contents
1. Safety Precautions ....................................................................................... 4
2. Introduction .................................................................................................. 5
2.1 Purpose of this Document ................................................................................ 5
2.2 What is M-ACCESS?.......................................................................................... 5
2.3 M-ACCESS Gateway Roles ............................................................................... 5
2.4 Overview of M-ACCESS Gateway Specifications ............................................ 6
3. Installation Method ....................................................................................... 7
3.1 Setting Flow ....................................................................................................... 7
3.2 Internet Connection Method ............................................................................. 7
3.3 PC Setting for Gateway Setting ........................................................................ 8
(1) System requirements of PC for gateway setting ....................................................... 8
(2) Internet Properties settings ........................................................................................ 8
3.4 Installation Procedure in Wireless Method ...................................................... 9
(1) Device connection ..................................................................................................... 9
(2) Confirmation of IP address of wireless router ........................................................... 9
(3) Gateway setting ....................................................................................................... 10
(4) IP address setting for PC ......................................................................................... 14
(5) Gateway activation .................................................................................................. 15
(6) Registration of air conditioners / heat source units ................................................. 19
(7) Group setting for indoor units .................................................................................. 25
(8) Gateway rebooting and communication check ....................................................... 29
(9) User addition and authority setting .......................................................................... 32
(10) Removal of setting devices (PC and hub) ............................................................. 33
(11) Confirmation of server-side data ............................................................................ 34
3.5 Installation Procedure for Wired Connection ................................................ 37
(1) Confirmation of customer network environment ...................................................... 37
(2) Gateway setting ....................................................................................................... 41
(3) IP address setting for PC ......................................................................................... 43
(4) Gateway activation .................................................................................................. 44
(5) Site setting ............................................................................................................... 48
(6) Removal of setting devices (PC and hub) ............................................................... 48
(7) Confirmation of server-side data ............................................................................. 49
4. Troubleshooting ......................................................................................... 52
<<Reference>> How to initialize the gateway's IP address ................................ 53
5. After sales service ...................................................................................... 54

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This master unit complies with EMC Directive 2014/30/EU, LV Directive 2014/35/EU, RoHS
Directive 2011/65/EU. CE marking is applicable to the area of 50 Hz power supply.
❚ PRECAUTIONS FOR WASTE DISPOSAL
Your master unit may be marked with this symbol. It means that waste electrical
and electronic equipment (WEEE as in directive 2012/19/EU) should not be
mixed with general household waste. The master unit should be treated at an
authorized treatment facility for reuse, recycling and recovery and not be
disposed of in the municipal waste stream.
Please contact the installer or local authority for more information.
This symbol printed in the batteries in the master unit is information for end-
users according to the EU directive 2006/66/EC article 20 annex II.
Batteries, at their end-of-life, should be disposed of separately from general
household waste.
If a chemical symbol is printed beneath the symbol shown above, this chemical
symbol means that the batteries contain a heavy metal at a certain
concentration. This will be indicated as follows: Hg:mercury (0.0005%),
Cd:cadmium (0.002%), Pb:lead(0.004%)
Please, dispose of batteries correctly at your local community waste collection
or recycling center.

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1. Safety Precautions
■ Please read this "Safety Precautions" carefully in order to learn how to correctly operate the gateway.
■ The precautions shown here are classified into " ! WARNING" and " ! CAUTION". However, those that are likely to
lead to serious consequences such as death or serious injury if mishandled are specifically described collectively
in the " ! WARNING" column. However, even the items described in the " ! CAUTION" column may lead to serious
outcomes depending on the situation.
All of them contain important information regarding safety, so be sure to observe them.
■ The symbols used in the text have the following meanings:
■ After finishing reading this manual, be sure to keep it in a location where you can access it at any time. When ownership of
the gateway is transferred, give this manual to the new owner.
■Precautions regarding installation
！ WARNING
Consult your dealer about installing the gateway.
Careless or inappropriate installation may cause an electric shock, fire, etc.
Be sure to store the main unit in a location that can be locked.
This product is equipped with a power terminal block on the outer surface of the gateway main unit.
Be sure to observe this to prevent an electric shock or power switch malfunction.
！ CAUTION
Be sure to perform the class D grounding work.
Do not connect the ground wire to the gas pipe, water pipe, lightning rod, or telephone ground wire.
Incomplete grounding can cause an electric shock.
■General precautions
！ WARNING
Do not open the cover of the main unit.
The main unit contains precision boards.
Careless or inappropriate opening and closing of the cover may damage the internal parts of the boards.
This may cause a malfunction or a problem when performing the intended operation.
!
!
!
Be sure to follow
the instructions.
Be sure to perform
the class D
grounding work.
！

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2. Introduction
2.1 Purpose of this Document
This document describes how to install the gateway for M-ACCESS. M-ACCESS requires an environment
that enables communications with the air conditioners and heat source units via the Internet; therefore, it is
necessary to install a dedicated gateway as a repeater between the air conditioner/heat source unit side and
the M-ACCESS server.
2.2 What is M-ACCESS?
M-ACCESS has the system configuration shown below.
M-ACCESS features a remote monitoring system that adopts cloud-type gateway equipment, and enables
centralized management of air conditioners in multiple remote locations using IoT-related technology. Using
a PC or tablet terminal, you can easily monitor and operate the status of air conditioners and heat source
units in remote locations via the Internet. Also, a wide variety of air conditioners, such as package air
conditioners for stores and room air conditioners as well as multi air conditioners for buildings, can be
connected.
2.3 M-ACCESS Gateway Roles
The M-ACCESS gateway (the gateway), which is used as a repeater between the air conditioner/heat source
unit side and the server side, is designed to acquire and transfer data of air conditioners and heat source
units, and transmit control commands to air conditioners. The gateway enables data transmission by
communicating with the server via the Internet. The Internet communication method can be arbitrarily
selected from the wired or wireless method to suit the customer's environment.
You cannot mix air conditioners and heat source units and connect them to the same gateway. Install a
separate gateway for each unit type.

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2.4 Overview of M-ACCESS Gateway Specifications
The overview of the gateway specifications is as follows:
(1) Product model
RM-CGW-E1
(2) Power supply specifications
Single-phase AC200-240V (±10%), 50Hz/60Hz
(3) Operating conditions
<Power-on operation status> <Power-off status>
Ambient temperature: 0 to 40C -20 to 70C
Relative humidity: 85% RH or less 40 to 90% RH or less
(4) Size
H 140 mm  W 260 mm  D 93 mm
(5) Weight
Approx. 1.6 kg
(6) Network setting (factory default)
IP address: 192.168.0.110
Subnet mask: 255.255.255.0
Default gateway: No setting

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3. Installation Method
3.1 Setting Flow
3.2 Internet Connection Method
For the gateway installation method, select the desired one from the following connection methods taking
the customer’s Internet environment into account. The gateway installation procedure varies depending on
the selected details, so refer to the corresponding installation procedure.
When the customer's Internet line is used, there may be communication restrictions depending on the
customer's environment, so we recommend that you use the wireless connection method that allows you to
easily build an M-ACCESS dedicated line. If you want to use the wireless connection method, you need to
prepare a wireless router (an optional item including a cradle) separately.
[Connection method]
●For wireless connection (recommended)
For the wireless connection method, you need to prepare a wireless router (an optional item including a
cradle) separately.
●For wired connection
For the wired connection method, install the gateway in the customer's network. For the gateway network
settings, check with the customer’s network administrator and confirm the available address information (IP
address, subnet mask, and default gateway) and whether or not to use a proxy server.
[Installation procedure]
 Wireless connection  Follow the steps described in Section 3.4 to install the gateway.
 Wired connection  Follow the steps described in Section 3.5 to install the gateway.
PC Network & Internet Security
Gateway Network Setting
Issue Activation Key
Gateway Activation
Site Setting
on PC setting screen
on Gateway setting screen
on M-ACCESS screen
on Gateway setting screen
on M-ACCESS screen
Air conditioners
or
Heat source units Wired router Server
internet
Gateway
Customer’s network

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3.3 PC Setting for Gateway Setting
The PC for gateway setting is required to install the gateway.
Follow the instructions below to confirm the system requirements and browser settings of the PC for gateway
setting.
(1) System requirements of PC for gateway setting
The PC used for gateway setting has the following system requirements:
CPU clock : 500 MHz or higher (2 GHz or higher recommended)
Main memory : 512 MB or more (1 GB or more recommended)
Screen resolution : 1364  768 pixels or more
OS : Microsoft Windows10,Windows11
Web browser : Microsoft Edge, Google Chrome, Mozilla Firefox
(*) The screenshots from Windows 10 and Microsoft Edge are shown to describe procedures in this
document.
(2) Internet Properties settings
Open [Control Panel], select [Internet Options], and make settings as follows:
[Security]
Internet: Medium
Local intranet: Medium-low
[Privacy]
Medium
[Connections] - [LAN settings]
Make a setting not to use the proxy server.
[Advanced]: Specified value
We recommend that the specified value is used.
Click [Restore advanced settings].
When all the settings are completed, click the [Apply] button, and then click the [OK] button.

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3.4 Installation Procedure in Wireless Method
Before installation, prepare the following equipment:
 PC used to make settings
 Wireless router (including cradle)
 Hub
 LAN cables x 3
(1) Device connection
While referring to the figure below, turn on the power to each device connected via the hub. Plug the
wireless router into the cradle and connect it to the hub via the wired LAN (*).
(*) For the connection method of the wireless router using the cradle, refer to the instruction manual of
the wireless router.
(2) Confirmation of IP address of wireless router
Confirm the LAN-side IP address of the wireless router and make a note of the number.
For the confirmation method, follow the instructions in the wireless router manual. Generally, you can
confirm the IP address from the terminal information screen of the wireless router or the terminal URL.

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(3) Gateway setting
Set the gateway's IP address from the PC used to make settings according to the LAN-side IP address of
the wireless router.
(3-1) Network setting of PC used to make settings
On the Windows desktop screen of your PC, select [Start] - [Settings] - [Network & Internet] - [Status] -
[Change adapter options] - [Ethernet] - [Properties] - [Internet Protocol Version 4 (TCP/IPv4)].
Then, proceed to the [Properties] screen, select "Use the following IP address", and set the following
IP address to your PC.
 IP address: 192.168.0.100
 Subnet mask: 255.255.255.0

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(3-2) Log in to the gateway setting screen.
- Start the web browser from your PC, enter the following URL in the address bar, and press the Enter
key.
http://XXX.XXX.XXX.XXX/
(*) "XXX.XXX.XXX.XXX" indicates the gateway's IP address.
The gateway's IP address is set to "192.168.0.110" by factory default.
- Enter the user ID and password, and press the [Login] button.
User ID: Admin
Password: 123456
① Enter the URL for the gateway setting screen in the
address bar of the browser.
<<URL for gateway setting screen>>
http://XXX.XXX.XXX.XXX/
XXX.XXX.XXX.XXX: Indicates the gateway's IP address.
This is set to "192.168.0.110" by factory default.
② Enter the user ID and password shown below, and press
the [Login] button.
User ID : Admin
Password : 123456

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(3-3) Gateway setting
The gateway setting screen is displayed, so make the network settings.
Select [CGW Configuration] from the menu on the left side of the screen, and make IPv4 settings by
referencing ① below.
Also, the gateway has a function to send a stop command to all the connected air conditioners if no
communication has been established with the server for 24 hours. To enable the function, select the check
box shown in ② below.
If you want to disable it, clear the check box.

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(4) IP address setting for PC
Change the IP address setting of the PC used to make settings again according to the gateway's IP
address specified in step (3-3).
In addition, you need to browse the web page on the PC in the next section (5), so set the default gateway
and DNS server. For details, refer to the following:
《IPアドレス設定例》
・IPアドレスのA部分はゲートウェイと同じ数値にしてください。
B部分は，1～254の範囲内で無線ルータ・ゲートウェイと異なる値を設定して下さい。
・サブネットマスクは，ゲートウェイと同じ数値としてください。
On the Windows desktop screen of your PC, select [Start] - [Settings] - [Network & Internet] - [Status] -
[Change adapter options] - [Ethernet] - [Properties] - [Internet Protocol Version 4 (TCP/IPv4)].
(*) For details on how to proceed on the screen, refer to step (3-1).
ゲートウェイ パソコンの設定例
IPアドレス 192. 168. 0. 101 192. 168. 0. 121
サブネットマスク 255. 255. 255. 0 同左
A部 B部A部 B部
<<IP address setting example>>
 Set the A part of the IP address to the same value as the gateway.
For the B part, set a value different to that of the wireless router or gateway within the range
1 to 254.
 Set the subnet mask to the same value as the gateway.
Gateway
PC setting example
IP address
Subnet mask
192. 168. 0. 101
A part B part
192. 168. 0. 121
A part B part
Same as the left.
255. 255. 255. 0

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(5) Gateway activation
Carry out gateway activation to associate with the information on M-ACCESS.
(5-1) Create the M-ACCESS account (only for users who do not have an account).
Start the web browser from your PC, enter the M-ACCESS URL (https://mhi.m-access.net) in the address
bar, and press the Enter key. Then, follow the steps below; an e-mail is sent to the address you entered
in step ③.
Access the URL for registration described in the e-mail to activate the account.
(5-2) Log in to M-ACCESS.
Log in to M-ACCESS with the account you created in step (5-1).

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(5-3) Add a site.
From the [MY SITES] screen displayed after login, follow the steps below to add a site.

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(5-4) Add the gateway to the site.
Follow the steps below and add the gateway to the site; the activation key of ⑤ is displayed.
This value is required in step (5-5), so make a note.

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(5-5) Log in to the gateway setting screen.
Start the web browser from your PC, enter the following URL in the address bar, and press the Enter key.
http://XXX.XXX.XXX.XXX/
(*) "XXX.XXX.XXX.XXX" indicates the gateway's IP address specified in step (3-3).
Enter the user ID and password, and press the [Login] button.
User ID: Admin
Password: 123456
(5-6) Enter the activation key.
The gateway setting screen is displayed. Select [CGW Activation] from the menu on the left side of the
screen, and enter the activation key you acquired in step (5-4).
① Enter the URL for the gateway setting screen in the address
bar of the browser.
<<URL for gateway setting screen>>
http://XXX.XXX.XXX.XXX/
XXX.XXX.XXX.XXX: Indicates the gateway's IP address specified in step (3-3).
② Enter the user ID and password shown below,
and click the [Login] button.
User ID: Admin
Password: 123456

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(5-7) Confirm that the activation is completed.
When the activation is completed, a display on the screen changes from the image in (5-4) to the one
below.
(6) Registration of air conditioners / heat source units
Register the information of air conditioners or heat source units connected to the gateway.
(6-1) Select the communication type.
Follow the steps below on the screen shown in step (5-7).
For the communication type, select one of the following types according to the units connected to the
gateway.
For air conditioner → Superlink
For heat source unit → Remote terminal

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(6-2) Register with M-ACCESS.
Follow the steps below to register information about connected units in M-ACCESS’s setup process.
Please refer to [2. Setting] of the M-ACCESS User’s Manual for more details of how to set and what
information to enter.
[For VRF]