Huawei NetCol5000-A User manual

Part Number: 31010QJN
ACC Precision Air Conditioner Controller
V100R002
User Manual
Issue
02
Date
2016-11-30
HUAWEI TECHNOLOGIES CO., LTD.

Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
i
Copyright © Huawei Technologies Co., Ltd. 2016. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com

ACC Precision Air Conditioner Controller
User Manual
About This Document
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
ii
About This Document
Purpose
This document describes the advanced cooling controller (ACC) in terms of its screen
functions, power-on commissioning, maintenance guide, FAQ, and parameter description,
which provides a systematic understanding of the ACC.
Certain manufacturing and assembly commands for project implementation and error locating
may cause device exceptions or service interruptions if they are misused. These commands
are not provided in this document. If you need these commands, contact Huawei technical
support.
The controller UI can vary depending on the model of a precision air conditioner or version of
the controller. The screenshots in this document are for reference only. The actual UI display
prevails.
The models of precision air conditioners included in this document are as follows:
NetCol5000-A: air cooled in-row precision air conditioner (cooling capacity: 20 kW, 25
kW, and 35 kW)
NetCol8000-A: air cooled in-room precision air conditioner (cooling capacity: 50 kW
and 100 kW)
NetCol5000-C: chilled water in-row precision air conditioner (cooling capacity: 30 kW)
NetCol8000-C: chilled water in-room precision air conditioner (cooling capacity: 70 kW
and 150 kW)
Intended Audience
This document is intended for:
Sales engineers
Technical support engineers
System engineers
Hardware installation engineers
Commissioning engineers
Data configuration engineers
Maintenance engineers

ACC Precision Air Conditioner Controller
User Manual
About This Document
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
iii
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in equipment damage, data loss,
performance deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal
injury.
Calls attention to important information, best practices and
tips.
NOTE is used to address information not related to personal
injury, equipment damage, and environment deterioration.
Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue 02 (2016-11-30)
Updated software and modified the following sections.
Setting Communications Parameters (IP Settings)
Setting Communications Parameters (Modbus Settings)
Setting Communications Parameters (SNMP Settings)
Issue 01 (2016-04-25)
This issue is the first official release.

ACC Precision Air Conditioner Controller
User Manual
Contents
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
iv
Contents
About This Document.................................................................................................................... ii
1 ACC Introduction..........................................................................................................................1
1.1 Appearance ...................................................................................................................................................................1
1.2 Controller Ports.............................................................................................................................................................2
1.3 Operating Environment Parameter ...............................................................................................................................3
2 Screen Functions ...........................................................................................................................4
2.1 Home Screen.................................................................................................................................................................4
2.2 Menu Hierarchy............................................................................................................................................................5
3 Power-on Commissioning...........................................................................................................7
3.1 Quick Settings...............................................................................................................................................................7
3.2 Initial Configuration .....................................................................................................................................................8
3.2.1 User Right Authentication .........................................................................................................................................8
3.2.2 Start and Shutdown....................................................................................................................................................9
3.2.3 Setting Temperature and Humidity Values...............................................................................................................10
3.2.4 Setting Communications Parameters (IP Settings) ..................................................................................................12
3.2.5 Setting Communications Parameters (Modbus Settings).........................................................................................12
3.2.6 Setting Communications Parameters (SNMP Settings)...........................................................................................14
3.2.7 Setting Teamwork Control Parameters ....................................................................................................................19
3.2.8 (Optional) Setting Alarm Parameters.......................................................................................................................27
3.3 Commissioning Guide ................................................................................................................................................29
3.3.1 Entering Diagnostic Mode.......................................................................................................................................29
3.3.2 Commissioning Air Conditioner Components.........................................................................................................30
4 Maintenance Guide ....................................................................................................................32
4.1 Querying Parameters ..................................................................................................................................................32
4.1.1 Querying Temperature and Humidity Curves..........................................................................................................32
4.1.2 Querying Alarms......................................................................................................................................................33
4.1.3 Querying Logs.........................................................................................................................................................35
4.1.4 Querying Device Runtime .......................................................................................................................................35
4.1.5 Querying Component Status....................................................................................................................................36
4.1.6 Querying System Parameters...................................................................................................................................37
4.1.7 Querying Version Details.........................................................................................................................................38

ACC Precision Air Conditioner Controller
User Manual
Contents
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
v
4.2 Changing Parameters..................................................................................................................................................39
4.2.1 Deleting Historical Alarms ......................................................................................................................................39
4.2.2 Deleting Logs ..........................................................................................................................................................39
4.2.3 Exporting Data.........................................................................................................................................................40
4.2.4 Clearing the Runtime...............................................................................................................................................42
4.2.5 Calibrating a Sensor.................................................................................................................................................43
4.2.6 Calibrating the Screen..............................................................................................................................................43
5 FAQ................................................................................................................................................46
5.1 How to Perform Quick Settings..................................................................................................................................46
5.2 How to Set the Language, Date, or Time....................................................................................................................46
5.3 How to Change a Password........................................................................................................................................47
5.4 Restoring Factory Settings..........................................................................................................................................48
5.5 How to Troubleshoot the Fault When the System Is in Upgrade Mode......................................................................50
5.6 How to Fast Shut Down an Air Conditioner...............................................................................................................51
5.7 How to Manually Clear Alarms..................................................................................................................................51
5.8 How to Enable a Humidity and Temperature Sensor..................................................................................................52
5.9 How to View Teamwork Control Information............................................................................................................52
5.10 Which ParametersAre Restored to Default Values After Default SettingsAre Operated.........................................53
5.11 How to Change the SSHAccess Password...............................................................................................................54
5.12 Rectifying Faults of the E-label Identification Board...............................................................................................56
5.13 How to Import a Certificate and Key........................................................................................................................57
5.14 Powering Off and Maintaining a Precision Air Conditioner in iCooling Linkage Mode..........................................58
A Parameter Description...............................................................................................................60
B Acronyms and Abbreviations ..................................................................................................80

ACC Precision Air Conditioner Controller
User Manual
1 ACC Introduction
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1
1 ACC Introduction
1.1 Appearance
The controller has a 7-inch true color touch-sensitive LCD that provides a user-friendly
interface for you to perform query, settings, monitoring, and maintenance.
The indicator on the panel displays operating status of the precision air conditioner. Figure 1-1
shows the location of the indicator. Table 1-1 lists the relationship of the alarm status,
indicator, and buzzer. If critical alarms, major alarms, and warning alarms are generated
simultaneously, the indicator and buzzer shows the status of the alarm with the highest
severity level, and buzzer shows the status of the unacknowledged alarm with the highest
severity level.
Figure 1-1 Location of the indicator
(1) Indicator
(2) LCD
Table 1-1 Indicator and buzzer status description
Alarm Status
Indicators
Buzzer
The device is operating properly, or a
warning alarm occurs.
Green
Silent

ACC Precision Air Conditioner Controller
User Manual
1 ACC Introduction
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2
Alarm Status
Indicators
Buzzer
The buzzer keeps buzzing if a major alarm
is not confirmed after the alarm generation.
Yellow
Beeping
intermittently
The buzzer keeps buzzing if a critical
alarm is not confirmed after the alarm
generation.
Red
Beeping
continuously
1.2 Controller Ports
Figure 1-2 shows the ports on the two sides of the controller.
Figure 1-2 Ports on the controller sides
(1) Communications port for the main control
board and LCD
(2) Dual in-line package (DIP) switch
on LCDa
(3) USB port
a: The first toggle switch DIP status is ON, and the second, third, fourth toggle switch DIP status are non
ON.

ACC Precision Air Conditioner Controller
User Manual
1 ACC Introduction
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3
1.3 Operating Environment Parameter
Table 1-2 describes the operating environment parameters for the ACC.
Table 1-2 Operating environment parameter
Parameter
Specification
Net weight
0.86 kg
Touch screen type
Resistive touch screen
Rated input voltage
12 V DC
Input voltage range
9–14 V DC
Working temperature
–20°C to +60°C
Storage temperature
–40°C to +85°C
Relative humidity
0%–95% RH (non-condensing)
Altitude
0–2000 m; working temperature decreased by 1°C when the
altitude increases for every 200 m, maximum 4000 m

ACC Precision Air Conditioner Controller
User Manual
2 Screen Functions
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4
2 Screen Functions
2.1 Home Screen
You can tap the menu items, buttons, or icons on the screen to enter related screens or perform
operations, such as Running, Alarms and Settings. The controller main screen is shown in
Figure 2-1.
Figure 2-1 Home screen
Table 2-1 Note for the page
No.
Items
Note
1
Communication
status between the
display panel and the
main control board
in the status bar indicates that the display panel
communicates properly with the main control board. If
is displayed in this position in the status bar, the
communication fails.
2
USB status
in the status bar indicates that the USB flash drive is

ACC Precision Air Conditioner Controller
User Manual
2 Screen Functions
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5
No.
Items
Note
successfully connected to the display panel.
3
Diagnostic mode
in the status bar indicates that the precision air
conditioner is in diagnostic mode. Tap the icon to exit
from the diagnostic mode.
4
The buzzer status
You can tap in the status bar to quickly mute the
buzzer. Or, you can tap in
the alarm bar to enter the active alarm screen to mute the
buzzer. If you are already in the alarm screen, the buzzer
cannot be muted even if you tap
. is changed to
after the buzzer is muted.
5
The current critical
alarm and their
quantity
refers to the current critical alarm signals and
their quantity.
6
The current major
alarm and their
quantity
refers to the current major alarm signals and
their quantity.
7
The current warning
and their quantity
refers to the current warning alarm signals and
their quantity.
8
The status bar
N/A
9
The alarm bar
You can tap in the alarm bar
to enter the active alarm screen that displays all active
alarms.
10
Logout button
indicates that you have logged in to the system as
Admin, Engineer, or Operator, and can tap the icon to
log out.
2.2 Menu Hierarchy
Figure 2-2 shows the hierarchy of the controller menu.

ACC Precision Air Conditioner Controller
User Manual
2 Screen Functions
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6
Figure 2-2 Hierarchy of the controller menu
The functions of the menus are described as follows:
Common Functions
Indicates the component status, system parameters, and historical alarms of the precision
air conditioner.
T/H Curve
Indicates curves for recent (time optional) temperature and humidity changes.
Teamwork
Sets and checks teamwork control information based on the requirements of the
precision air conditioner.
Running
Checks the component status, system parameters, and the name, control and operating
status, and other related information of the components in the current precision air
conditioning system.
Alarms
Checks the active and historical alarms of the precision air conditioner, and deletes the
historical alarms.
Settings
Sets the involved parameters for the operation of the precision air conditioner.
Maint
Checks or deletes the logs or component total runtime/run factor, manually diagnoses
each component, calibrates the sensor and touch screen, exports data, and upgrades the
system.
About
Checks the model, manufacturer, monitoring version, detail version information, and
electronic label of the ACC.

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7
3 Power-on Commissioning
3.1 Quick Settings
Prerequisites
After the system is powered on, the LCD is started, and the progress bar in the startup screen
is full:
For initial power-on, the system enters the quick setting screen. Set the parameters by
following the instructions in this section.
For non-initial power-on, the LCD automatically enters the home screen as shown in
Figure 2-1.
Procedure
Step 1 Set the language and tap Next, as shown by (1) in Figure 3-1.
Figure 3-1 Quick settings

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8
Step 2 Set the time and date and tap Next, as shown by (2) in Figure 3-1.
Step 3 Set system parameters and tap Finish, as shown by (3) in Figure 3-1.
Step 4 The system displays a dialog box for confirming the rated voltage. Tap Yes after confirmation,
as shown by (4) in Figure 3-1.
----End
3.2 Initial Configuration
When configuring the temperature and humidity parameters, do not place the cursor
between the decimal point and the following digit of the value. Otherwise, the decimal
point cannot be deleted, and the parameter value fails to be configured.
To ensure the security of user information, you need to import a certificate and key before
using the controller, and periodically update the certificate and key. For details about how
to import a certificate and key, see 5.13 How to Import a Certificate and Key.
3.2.1 User Right Authentication
To enhance security, before a user attempts to perform setting and maintenance operations, the
user needs to enter the user name and password for right authentication. Figure 3-2 shows the
setting login screen for an example.
Figure 3-2 Screen for logging in to the settings screen
Users include Admin, Engineer, Operator, and Guest. TheAdmin users have the highest
permission, followed by the Engineer, Operator, and Guest users. The initial passwords
for the Admin, Engineer, and Operator users are all 000001. The Guest user does not
have a initial password.
To prevent misoperation, log in as Operator users first before modifying parameters.
Obtain permission from Huawei before modifying any parameter that you are not
allowed to modify, otherwise, Huawei will not be liable for any consequences of the
modification.

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9
To ensure system security, a user needs to change the initial password after initial login.
For the password change method, see 5.3 How to Change a Password. If the login
password is forgotten, refer to 5.4 Restoring Factory Settings to restore the initial
password.
After login to the system using a user name, the user right is valid when you touch the
screen all the time. If you do not touch the screen, the user right is only valid for 3
minutes. To ensure security, manually log out by tapping at the right corner of
the home screen.
A Guest user can only be used for querying information. Log in as other types of users if
attempting to set parameters or perform maintenance.
3.2.2 Start and Shutdown
Context
Tap the Start or Shutdown buttons on the home screen to start or shut down the precision air
conditioner.
Procedure
Step 1 Tap Start or Shutdown on the home screen. A warning is displayed, indicating whether to
start or shut down the precision air conditioner, as shown in Figure 3-3. Tap Yes. If the device
is successfully started or shut, the system displays a message, indicating that the command is
successfully triggered.
Figure 3-3 Start and shutdown
If a power failure occurs and the precision air conditioner is powered on again, the precision air
conditioner automatically restores to the original state (start or shutdown) before the power failure.
The hardware port for controlling the status of the remote dry contact or On/Off status on remote is
reserved on the ACC. The status of the remote dry contact and On/Off status on remote is on by
default.
The operations that start the air conditioner successfully by the LCD button or by element
management system (EMS) is effective only when the remote dry contact or On/Off status on remote
is on the status of on.
In start mode, the Start button is green (unavailable) and the Shutdown button is gray (available).
In shutdown mode, the Shutdown button is green (unavailable) and the Start button is gray
(available).
----End

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10
3.2.3 Setting Temperature and Humidity Values
Context
To set T/H control type, Temp control mode, cold aisle sensors 1, 2, and 3, and hot aisle
sensors 1, 2, and 3, log in as the Admin or Engineer user. To set other parameters, log in as
the Admin, Engineer, or Operator user.
Procedure
Step 1 On the home screen, choose Settings > System Settings > T/H Sensor. Figure 3-4 is
displayed.
Figure 3-4 Setting temperature and humidity values
Step 2 Set the parameters by referring to Table 3-1.
You are not recommended to modify the parameters not listed in Table 3-1.
Table 3-1 Parameter description
Parameter
Description
Configuration Principle
T/H control
type
Sets Cold-aisle,
Hot-aisle,
Return-air, or
Supply-air as
required. The
temperature and
humidity set points
correspond to the
selected control type
can be set.
Return-air: For a hot aisle, select Return-air
to control the temperature and humidity
around the air return vent of the precision air
conditioner.
Supply-air: For a cold aisle, select Supply-air
to control the temperature and humidity
around the air supply vent of the precision air
conditioner.
Cold-aisle: For a cold aisle, select Cold-aisle
to control the temperature and humidity of the
aisle. The temperature and humidity values
come from the humidity and temperature
sensor in the aisle.
Hot-aisle: For a hot aisle, choose Hot-aisle to
control the temperature and humidity of the
aisle. The temperature and humidity values

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
11
Parameter
Description
Configuration Principle
come from the humidity and temperature
sensor in the aisle.
Temp control
mode
Controls the
temperature inside
the room or aisles
based on the
Average, Maximum,
or Minimum of the
temperatures
collected by each
sensor.
Average: Select Average if the temperature is
to be controlled based on the averaged data
value collected by the collector.
Maximum: Select Maximum if the
temperature is to be controlled based on the
maximum data value collected by the
collector.
Minimum: Select Minimum if the
temperature is to be controlled based on the
minimum data value collected by the collector.
Supply-air
temp set
point,
Supply-air
humid set
point
Sets the required
humidity and
temperature in a
room or aisle.
The ACC controls the temperature and humidity
based on the set value. For example, if Temp
control type is set to Return-air, Return-air
temp set point is set to 30.0, and Return-air
humid set point is set to 25.0, the ACC will
control the temperature and humidity around the
return-air vent of the precision air conditioner to a
temperature of 30°C and humidity of 25% RH.
Return-air
temp set
point,
Return-air
humid set
point
Cold-aisle
temp set
point,
Cold-aisle
humid set
point
Hot-aisle
temp set
point,
Hot-aisle
humid set
point
Cold aisle
sensor 1, 2, 3
Sets the sensors in
cold aisles to Enable.
Enable the corresponding humidity and
temperature sensor installed in the cold aisle.
Hot aisle
sensor 1, 2, 3
Sets the sensors in
hot aisles to Enable.
Enable the corresponding humidity and
temperature sensor installed in the hot aisle.
----End

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12
3.2.4 Setting Communications Parameters (IP Settings)
Context
To set communications parameters, log in as the Admin, or Engineer user.
Procedure
Step 1 On the home screen, choose Settings > Comm Settings > IP Settings. Figure 3-5 is
displayed.
Figure 3-5 IPsettings
Step 2 Set the parameters by referring to Table 3-2.
Table 3-2 IPaddress settings
Parameter
Setting Method
IP assigning mode
Set according to the actual plan.
IP address
Set according to the actual plan.
Subnet mask
Set according to the actual plan.
Gateway
Set according to the actual plan.
----End
3.2.5 Setting Communications Parameters (Modbus Settings)
Context
To set communications parameters, log in as the Admin or Engineer user.
If Connection mode is set to Server, a precision air conditioner can be accessed by a
maximum of one element management system (EMS) clients at the same time. If
Connection mode is set to Client, a precision air conditioner can be connected only to
the EMS with the corresponding IP address. If Connection mode is set to Server+client,

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
13
a precision air conditioner can be accessed by a maximum of one EMS clients and
connect to the EMS with the corresponding IP address at the same time.
You can set parameters for Modbus RTU and Modbus TCP on the Modbus setting screen.
Figure 3-6 shows the screen for setting the Modbus communications parameters.
Figure 3-6 Setting Modbus
Setting Modbus RTU
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 3-6 is
displayed.
Step 2 Set parameters for Modbus RTU by following instructions in Table 3-3.
Table 3-3 Modbus RTU parameter settings
Parameter
Setting
Setting Method
Baud rate
9600, 19200
Set the baud rate as required. The value should be
consistent with that set on the EMS.
Comm address
1–255
Set the communication address of the precision air
conditioner as planned. The EMS communicates with
the precision air conditioner through this address, and
the communication addresses of two precision air
conditioners connecting to the same EMS must be
unique.
----End
Setting Modbus TCP
Step 1 On the home screen, choose Settings > Comm Settings > Modbus Settings. Figure 3-6 is
displayed.
Step 2 Set parameters for Modbus TCP by following instructions in Table 3-4.

ACC Precision Air Conditioner Controller
User Manual
3 Power-on Commissioning
Issue 02 (2016-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
14
Table 3-4 Modbus TCP parameter settings
Parameter
Setting
Setting Method
Connection
mode
Server, Client,
Server+client
If you set Connection mode to Server, the air
conditioner, as a server, supports one client
connection and establishes communication.
If you set Connection mode to Client, the air
conditioner, as a client, can connect to a remote
server and establish communication.
If you set Connection mode to Server+client, the
air conditioner, as a server, supports one client
connection and establishes communication. In
addition, the air conditioner, as a client, can connect
to a remote server and establish communication.
Client
encryption
Enable, Disable
The default value is Enable. This parameter is
configurable when Connection mode is set to Client.
Server
encryption
Enable, Disable
The default value is Disable. This parameter is
configurable when Connection mode is set to Server.
EMS IP
address
N/A
Enter the actual IP address of the EMS. IP addresses of
the display panel, EMS client, and EMS server must be
unique. This parameter is configurable when
Connection mode is set to Client.
EMS port
N/A
It is recommended that you retain the default value
16100. If you need to change the value, enter a value as
required. This parameter is configurable when
Connection mode is set to Client.
----End
3.2.6 Setting Communications Parameters (SNMP Settings)
Context
To set communications parameters, log in as the Admin or Engineer user.
This section is suitable only for SNMP. Skip this section if you use Modbus.
Record the values entered in this section. They will be used when you access a precision
air conditioner to an EMS (element management system).
One precision air conditioner supports concurrent access of up to 10 EMSs through
SNMP.
Procedure
Step 1 On the home screen, choose Settings > Comm Settings > SNMP Settings. Figure 3-7 is
displayed.