Intesis Modbus Server User Manual
Hisense Air Conditioning
Gateway for the integration of Hisense VRF systems into Modbus (RTU and TCP)
systems
USER MANUAL
Issue date: 11/2018 r1.0 ENGLISH
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
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Important User Information
Disclaimer
The information in this document is for informational purposes only. Please inform HMS Industrial Networks of any
inaccuracies or omissions found in this document. HMS Industrial Networks disclaims any responsibility or liability
for any errors that may appear in this document.
HMS Industrial Networks reserves the right to modify its products in line with its policy of continuous product
development. The information in this document shall therefore not be construed as a commitment on the part of
HMS Industrial Networks and is subject to change without notice. HMS Industrial Networks makes no commitment
to update or keep current the information in this document.
The data, examples and illustrations found in this document are included for illustrative purposes and are only
intended to help improve understanding of the functionality and handling of the product. In view of the wide range
of possible applications of the product, and because of the many variables and requirements associated with any
particular implementation, HMS Industrial Networks cannot assume responsibility or liability for actual use based on
the data, examples or illustrations included in this document nor for any damages incurred during installation of the
product. Those responsible for the use of the product must acquire sufficient knowledge in order to ensure that the
product is used correctly in their specific application and that the application meets all performance and safety
requirements including any applicable laws, regulations, codes and standards. Further, HMS Industrial Networks will
under no circumstances assume liability or responsibility for any problems that may arise as a result from the use of
undocumented features or functional side effects found outside the documented scope of the product. The effects
caused by any direct or indirect use of such aspects of the product are undefined and may include e.g. compatibility
issues and stability issues.
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
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Gateway for the integration of Hisense VRF systems into
Modbus (RTU and TCP) systems.
ORDER CODE
LEGACY ORDER CODE
INMBSHIS016O000
HS-AC-MBS-16
INMBSHIS064O000
HS-AC-MBS-64
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
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This information is subject to change without notice
URL https://www.intesis.com
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INDEX
1. Description ............................................................................................................................................................ 5
Introduction ................................................................................................................................................... 5
1.1 Functionality ..................................................................................................................................................... 6
Capacity of Intesis......................................................................................................................................... 7
2. Modbus interface .................................................................................................................................................. 8
Functions supported ..................................................................................................................................... 8
Modbus RTU ................................................................................................................................................. 8
Modbus TCP ................................................................................................................................................. 8
Modbus Address Map ................................................................................................................................... 9
3. Connections ........................................................................................................................................................ 12
Power device .............................................................................................................................................. 13
Connect to Hisense VRF installation .......................................................................................................... 13
Connection to Modbus ................................................................................................................................ 13
1.9.1 Modbus TCP ....................................................................................................................................... 13
1.9.2 Modbus RTU ....................................................................................................................................... 13
Connection to PC (Configuration tool) ........................................................................................................ 14
4. Set-up process and troubleshooting ................................................................................................................... 15
Pre-requisites .............................................................................................................................................. 15
Intesis MAPS. Configuration & monitoring tool for Intesis Modbus series ................................................. 15
1.12.1 Introduction.......................................................................................................................................... 15
1.12.2 Connection .......................................................................................................................................... 15
1.12.3 Configuration tab ................................................................................................................................. 16
1.12.4 Modbus Slave configuration ................................................................................................................ 16
1.12.5 Hisense configuration .......................................................................................................................... 18
1.12.6 Signals ................................................................................................................................................. 20
1.12.7 Sending the configuration to Intesis .................................................................................................... 21
1.12.8 Diagnostic............................................................................................................................................ 21
1.12.9 Set-up procedure ................................................................................................................................ 22
5. Electrical & Mechanical Features ....................................................................................................................... 24
6. Dimensions ......................................................................................................................................................... 25
7. AC Unit Types compatibility................................................................................................................................ 26
8. Error codes for Indoor and Outdoor Units .......................................................................................................... 27
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
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This information is subject to change without notice
URL https://www.intesis.com
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1. Description
Introduction
This document describes the integration of Hisense VRF air conditioning systems into Modbus compatible devices
and systems using using gateway the Intesis Modbus Server to Hisense VRF communication gateway.
The aim of this integration is to monitor and control Hisense air conditioning systems, remotely, from a Control
Center using any commercial SCADA or monitoring software that includes a Modbus Master driver (RTU and/or
TCP). To do it so, Intesis performs as a Modbus Server, allowing poll and write requests from any Modbus master
device.
Intesis makes available the Hisense air conditioning system indoor units’ datapoints through independent Modbus
registers.
Up to 64 indoor units supported, depending on product version.
This document assumes that the user is familiar with Modbus and Hisense technologies and their technical terms.
Integration of Hisense’s compatible systems into Modbus systems
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
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1.1 Functionality
IntesisTM continuously monitors Hisense VRF network for all configured signals and keeps the updated status of all
of them in its memory, ready to be served when requested from the Modbus master.
Commands toward the indoor units are permitted.
Each indoor unit is offered as a set of MBS objects.
Element
Object supported
Outdoor Unit
• Status
Indoor Unit
• Status
• Command
• Communication
status
General signals
(all units)
• Command
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
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Capacity of Intesis
Element
Max.
Notes
Number of indoor units
64 *
Number of indoor units that can be controlled through Intesis
* There are different models of Intesis MBS – Hisense VRF each one with different capacity. The table above shows
the capacity for the top model (with maximum capacity).
Their order codes are:
▪ INMBSHIS016O000: Model supporting up to 16 indoor units
▪ INMBSHIS064O000: Model supporting up to 64 indoor units
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
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This information is subject to change without notice
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2. Modbus interface
In this section, a common description for all Intesis Modbus series gateways is given, from the point of view of
Modbus system which is called from now on internal system. Connection with the Hisense VRF system is also called
from now on external system.
Functions supported
This part is common for Modbus RTU and TCP.
Modbus functions 03 and 04 (Read Holding Registers and Read Input Registers) can be used to read Modbus
registers.
Modbus functions 06 and 16 (Single Multiple Holding Registers and Write Multiple Holding Registers) can be used
to write Modbus registers.
Configuration of poll records is possible between Modbus addresses 0 and 20000. Addresses that are not defined
in section 2.2 (Modbus map of the device) are read-only and will always report 0.
Modbus error codes are supported, they will be sent whenever a non-valid Modbus address is queried.
All registers are 16-bit signed integer, in standard Modbus Big Endian (MSB/LSB) format.
Intesis supports Modbus RTU and Modbus TCP and both interfaces can be used simultaneously.
Modbus RTU
Both EIA485 and EIA232 physical layers are supported. Only the lines RX, TX and GND of the EIA232 connector
are used (TX and RX for EIA485).
Baud rate can be selected between 1200, 2400, 4800, 9600, 19200, 38400, 56700 and 115200. Parity (none, even
or odd) and stop bits (1 or 2) can be selected as well.
Modbus slave number must be configured and the physical connection (RS232 or RS485) can also be selected
Modbus TCP
TCP port to use (default is 502) and keep alive period must be configured.
IP settings of Intesis (DHCP status, own IP, net mask and default gateway) must be configured as well.
IntesisTM Modbus Server – HISENSE VRF User Manual r1.0 EN
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
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Modbus Address Map
Modbus address from the formula is expressed in link layer format. This is, first register address is 0.
Modbus Address
First Address is 0
Read
/Write
Register/signal name
Possible values
0
W
On (all the units)
1-Set all the units On
1
W
Off (all the units)
1-Set all the units Off
2
W
Operation Mode Auto (all the units)
1-Set Auto Mode
3
W
Operation Mode Heat (all the units)
1-Set Heat Mode
4
W
Operation Mode Dry (all the units)
1-Set Dry Mode
5
W
Operation Mode Fan (all the units)
1-Set Fan Mode
6
W
Operation Mode Cool (all the units)
1-Set Cool Mode
7
W
Fan Speed Auto
(all the units)
1-Set Fan Speed Auto
8
W
Fan Speed Low
(all the units)
1-Set Fan Speed Low
9
W
Fan Speed Mid (all the units)
1-Set Fan Speed Mid
10
W
Fan Speed High (all the units)
1-Set Fan Speed High
11
W
Fan Speed High+ (all the units)
1-Set Fan Speed High+
12
W
Vane Position Auto (all the units)
1-Set Vane Position Auto
13
W
Vane Position 1 (all the units)
1-Set Vane Position 1
14
W
Vane Position 2 (all the units)
1-Set Vane Position 2
15
W
Vane Position 3 (all the units)
1-Set Vane Position 3
16
W
Vane Position 4 (all the units)
1-Set Vane Position 4
17
W
Vane Position 5 (all the units)
1-Set Vane Position 5
18
W
Vane Position 6 (all the units)
1-Set Vane Position 6
19
W
Vane Position 7 (all the units)
1-Set Vane Position 7
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