TOSHIBA BMS-IFMB1280U-E Modbus Interface Installation Guide
- June 12, 2024
- Toshiba
Table of Contents
BMS-IFMB1280U-E Modbus Interface
Product Information
Model name: BMS-IFMB1280U-E
BMS-IFMB1280U-TR
Product Type: Modbus interface
For commercial use
Multilingual installation manuals:
https://www.toshiba-carrier.co.jp/global/manual/bms-ifmb1280u.htm
Applications: This Modbus interface is designed
for various applications.
Functions: The Modbus interface provides
multiple functions for communication.
Specifications:
- Power supply
- Power consumption
- Operating temperature / humidity
- Storage temperature
- Chassis material
- Dimensions
- Mass
Note: Modbus is a registered trade mark of Schneider
Electric SA.
Product Usage Instructions
Precautions for Safety
The user manual provides important safety information that must
be followed to avoid serious bodily harm or damage to property. Pay
attention to the warning and caution indications in the manual.
Before Installation
Before starting the installation, check the package contents.
The package should include:
- Modbus interface (quantity: 1)
- Installation Manual (quantity: 1)
- Screw (quantity: 4)
- Cable clamp (quantity: 1)
Refer to the installation manual for the type and size of screws
required.
Ensure you have the necessary wiring materials to connect the
communication cables and power cables as specified in the design of
control wiring. The installation manual provides details on wire
size, length, and types required for each line.
Installation
There are multiple installation methods available for the Modbus
interface, including surface mount and wall mount options. Use the
provided screws for installation. Ensure proper installation space
and maintenance space is reserved before installation. Refer to the
installation manual for specific dimensions and requirements.
Connection of Power Cables / Earth Wires
The installation manual provides instructions on how to connect
power cables and earth wires. Follow the specified wire sizes,
lengths, and types for each type of connection. Ensure proper
grounding and electrical safety measures are taken during the
installation process.
Modbus interface
Model name:
BMS-IFMB1280U-E BMS-IFMB1280U-TR
Installation Manual Central Control Device
For commercial use
Multilingual installation manuals
[] / [Cesky] Stazení montázní pírucky / [Dansk] Installationsvejledning,
Download / [Deutsch] Installationshandbuch Herunterladen / [] / [English]
Installation manual Download / [Español] Descarga del Manual de instalación /
[Eesti] Paigaldusjuhendi allalaadimine / [Suomi] Asennusohjeiden lataaminen /
[Français] Manuel d’installation Téléchargement / [Hrvatski] Prirucnik za
instalaciju Preuzimanje / [Magyar] Telepítési kézikönyv Letöltés / [Italiano]
Manuale di installazione Scaricamento / [Latviesu] Uzstdsanas rokasgrmata
Lejupieldt / [Norsk] Installasjonsveiledning Last ned / [Nederlands]
Installatiehandleiding downloaden / [Polski] Pobieranie Instrukcji
instalacyjnej / [Português] Tranferência do manual de instalação / [Român]
Manual de instalare Descrcare / [] / [Slovensky] Montázna prírucka Stiahnutie
/ [Slovenscina] Prenos navodil za montazo / [Svenska] Installationshandbok
Nedladdning / [Türkçe] Kurulum kilavuzu ndirme / [] https://www.toshiba-
carrier.co.jp/global/manual/bms-ifmb1280u.htm
Modbus interface
Installation Manual
· Thank you very much for purchasing this TOSHIBA Modbus interface. · Please
read this manual carefully beforehand for proper installation of the Modbus
interface.
“AEEE Yönetmeligine Uygundur.”
Contents
1 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . 2 2 Introduction . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . 3 3 Before installation . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Connection of power
cables / earth wires / communication cables . . . . . . . . . . . . . 5 6
Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Test run check . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . 17
1-EN
Modbus interface
Installation Manual
1 Precautions for safety
· Read these “Precautions for Safety” carefully before installation. · The
precautions described below include important items regarding safety. Observe
them without fail.
Understand the following details (indications and symbols) before reading the
body text, and follow the instructions. · After the installation work has been
completed, perform a test run to check for any problems. Explain how to use
and maintain the unit to the customer. · Ask customer to keep this Manual at
accessible place for future reference.
Indication
Meaning of Indication
WARNING
Text set off in this manner indicates that failure to adhere to the directions in the warning could result in serious bodily harm (*1) or loss of life if the product is handled improperly.
CAUTION
Text set off in this manner indicates that failure to adhere to the directions in the caution could result in serious bodily injury (2) or damage (3) to property if the product is handled improperly.
1: Serious bodily harm indicates loss of eyesight, injury, burns, electric shock, bone fracture, poisoning, and other injuries which leave aftereffect and require hospitalization or long-term treatment as an outpatient.
2: Bodily injury indicates injury, burns, electric shock, and other injuries which do not require hospitalization or longterm treatment as an outpatient.
*3: Damage to property indicates damage extending to buildings, household effects, domestic livestock, and pets.
Symbols
Meaning of Symbols
” ” Indicates prohibited items. The actual contents of the prohibition are
indicated by a picture or text placed inside or next to the graphic symbol.
” ” Indicates compulsory (mandatory) items. The actual contents of the
obligation indicated by a picture or text placed inside or next to the graphic
symbol.
WARNING
· Ask an authorized dealer or qualified installation professional to install
or reinstall this unit. Inappropriate installation may result in electric
shock or fire.
· Electrical work must be performed by a qualified electrician in accordance
with this installation manual. The work must satisfy all local, national and
international regulations. Inappropriate work may result in electric shock or
fire.
· Be sure to turn off all main power supply switches before starting any
electrical work. Failure to do so may result in electric shock.
· Do not modify the unit. A fire or an electric shock may occur.
CAUTION
· Do not install this unit where flammable gas may leak. If gas leaks and
accumulates around the unit, it may cause a fire.
· Perform wiring correctly in accordance with specified the current capacity.
Failure to do so may result in short-circuiting, overheating or fire.
· Use predefined cable and connect them certainly. Keep the connecting
terminal free from external force. It may cause an exothermic or a fire.
2-EN
Modbus interface
Installation Manual
2 Introduction
Applications / Functions / Specifications
Applications
· The Modbus interface is used to connect air conditioners “with TU2C-LINK Uh
Line (hereinafter, referred to as Uh Line) installed” and TCB-IFCG1TLE to
Modbus* system.
Functions
· The Modbus interface converts signals between Uh Line and Modbus Master.
Specifications
Power supply Power consumption Operating temperature / humidity Storage temperature Chassis material Dimensions Mass
220 – 240 VAC, 50/60 Hz 3 W 0 to 40 °C, 10 to 90 % RH (no condensation) -20 to +60 °C Galvanized sheet metal 0.8 t (no coating) 66 (H) x 170 (W) x 200 (D) mm 1.1 kg
- Note) “Modbus” is a registered trade mark of Schneider Electric SA.
External view
200
6-Ø5.5 mounting
holes
66
22
78
78
22
63.6
146.9 156 170
3-EN
22
78
78
22
Modbus interface
Installation Manual
3 Before installation
Check the following package contents.
No.
Item
1 Modbus interface
2 Installation Manual
3 Screw
4 Cable clamp
Quantity
1 1 4 1
Remarks
M4 x 12 mm tapping screws
Use the following wiring materials to connect the communication cables and power cables. (locally procured)
No.
Line
Description
Type
1
For Uh Line
Wire size
Refer to “Design of Control Wiring”(P.7 to P.11).
Length
Type
2-core shielded wires
2
For RS-485
Wire size
1.25 mm2, 500 m max.
Length
(total length)
3
For power
Type Wire size
H07 RN-F or 245IEC66 0.75 mm2, 50 m max.
4 Installation
Modbus interface installation method and orientation
There are five installation methods for this Modbus interface as shown below:
surface mount and wall mounts. Use the attached screws.
No good
REQUIREMENT
Do not install the unit in any of the following places. · Humid or wet place ·
Dusty place · Place exposed to direct sunlight · Place where there is a TV set
or radio within one meter · Place exposed to rain (outdoors, under eaves,
etc.)
Installation space and maintenance space
A side space for connecting through cable inlets and an upper space for
maintenance must be reserved before installation. The other sides can be
adjacent to surrounding objects.
100 mm 100 mm
4-EN
Modbus interface
Installation Manual
5 Connection of power cables / earth wires /
communication cables
CAUTION
· The RS-485 communication cables have polarity. Connect A(+) to A(+), and
B(-) to B(-). If connected with incorrect polarity, the unit will not work.
· The Uh Line communication cable have no polarity.
Connect power cables, earth wires, and communications cables to the specified terminals on the terminal block.
Length of stripped RS-485 communication cable (not shielded wire ends)
10
50 10
Length of stripped RS-485 (Shielded wire ends) and Uh Line communication cable
50 10
Length of stripped power cable
35 10 L N
Clamping RS-485 communication cable (address 1)
Clamping communication cable
55 10
The RS-485 communication cable must be earthed on address 1 (Modbus interface address SW=1) Modbus interface. Fix the shielded wire of RS-485 communication cable with metal cable clamp and screw it to the chassis to earth it.
Do not connect the shield wire to the earth. It should be open and insulated.
A(+) Shielded wires
B(-)
The shielded wires must be crimped with closed end connectors on interfaces
with address of other than 1 and not shielded wire ends.
5-EN
Modbus interface
Installation Manual
Termination resistance setting
· TU2C-LINK / TCC-LINK termination resistance setting …………
Refer to the manual of each model for the termination resistance setting
method.
U3 U4 LINK (Uh)
U3 U4 LINK (Uh)
U3 U4 LINK (Uh)
U3 U4 LINK (Uh)
Termination resistance ON
Termination resistance OFF
Termination resistance ON
Shield grounding process
· Central control wiring shielded wire …………………………………….When using the central
remote controller with one unit, open the shielded wire of the central control
wiring and perform insulation processing. When using the central remote
controller with multiple units, connect the shield of the central control
wiring to the closed end and open the shield at the final end of the central
remote controller to perform insulation processing. Perform the central
control wiring shield grounding on the air conditioner side.
REQUIREMENT
· Be sure to install a circuit breaker or all-pole isolating switch (with a
contact breaking distance of at least 3 mm) on the primary side of the power
supply.
· Fasten the screws to the terminal block with torque of 0.5 N·m.
6-EN
Modbus interface
Installation Manual
Design of Control Wiring
Communication method and model name
The TU2C-LINK model (U series) can be used together with previous models
(other than U series). For details of the model and communication method, see
the following table.
Communication method
TU2C-LINK (U series)
TCC-LINK (other than U series)
Outdoor unit
MMY-M P***
U series model
Other than on the left (MMY-MAP, MCY-MAP, etc.)
Indoor unit
MM*- P***
U series model
Other than on the left (MM*-AP***, etc.)
Wired remote controller RBC-AMS **
U series model
Other than on the left
Wireless remote controller receiver
RBC-AXR TCB-AXR
U series model U series model
Other than on the left
Central control device
- **
U series model
Other than on the left
7-EN
Modbus interface
Installation Manual
When the connected outdoor unit is Super Multi u series (U series)
Follow the wiring specifications in the table below even when there is a mix
of U series and non-U series in the connected indoor units or remote
controllers.
Wiring specifications
Item
Wire diameter Wire type Wire types that can be used
Communication line Central control wiring (Uh line) 1.0 to 1.5 mm2 (up to 1000 m) 2.0 mm2 (up to 2000 m) 2-core, non-polar Shielded wire
REQUIREMENT
When wiring the control wiring between indoor and outdoor units (Uv
line)/control wiring between outdoor units (Uc line) and the central control
wiring (Uh line), use the same wire type and diameter for each line. Using a
mixture of different wire types and diameters may cause a communication error.
System diagram
Central control device
LINK (Uh) U3 U4
Outdoor unit (Super Multi u series)
U3 U4 Uh
Uv U1 U2
Uc U5 U6
[Central control wiring (Uh line)] L1 = Up to 2000 m [Control wiring between indoor and outdoor units (Uv line)/Control wiring between outdoor units (Uc line)] L2 = Up to 1000 m (L3+L4) = Up to 1000 m
U3 U4 Uh
Uv U1 U2
Uc U5 U6
U3 U4 Uh
Uv U1 U2
Uc U5 U6
Indoor unit *
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
Remote controller *
- The wiring specifications in the system diagram above are the same even when the indoor unit or remote controller are other than the U series.
8-EN
Modbus interface
Installation Manual
When the connected outdoor units are other than Super Multi u series (U series)
Wiring specifications
Item
Wire diameter Wire type Wire types that can be used
Communication line Control wiring between indoor and outdoor units and central control wiring 1.25 mm2 (up to 1000 m) 2.0 mm2 (up to 2000 m) 2-core, non- polar Shielded wire
REQUIREMENT
When wiring the control wiring between indoor and outdoor units/central
control wiring and the control wiring between outdoor units, use the same wire
type and diameter for each line. Using a mixture of different wire types and
diameters may cause a communication error.
System diagram
Central control device
LINK (Uh) UU33 U U44
U 3 U 4U4 U 1 UU22 U 5 U 6
[Central control wiring/Control wiring between indoor and outdoor units] (L1+L2+L3) = Up to 2000 m [Control wiring between indoor and outdoor units] L4 = Up to 100 m
U 3U3U 4
U3 U4
U 1 UU1 2 U 5 U 6
U1 U2 U5 U6
Indoor unit *
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
U 1 UU24 Uv
A UB6
Remote controller *
- The wiring specifications in the system diagram above are the same even when the indoor unit or remote controller are other than the U series.
9-EN
Modbus interface
Installation Manual
When connecting to a previous model light commercial, air to air heat exchanger, air to water heat pump, or general purpose equipment control interface
Follow the wiring specifications in the table below even when there is a mix of U series and non-U series in the connected indoor units or remote controllers.
Wiring specifications
Item
Wire diameter Wire type Wire types that can be used
Communication line Central control wiring (Uh line) 1.25 mm2 (up to 1000 m) 2.0 mm2 (up to 2000 m) 2-core, non-polar Shielded wire
REQUIREMENT
When wiring the control wiring between indoor and outdoor units (Uv
line)/control wiring between outdoor units (Uc line) and the central control
wiring (Uh line), use the same wire type and diameter for each line. Using a
mixture of different wire types and diameters may cause a communication error.
System diagram
Central control device
LINK (Uh) UU33 UU44
[Central control wiring (Uh line)] L1 = Up to 2000 m [Control wiring between indoor and outdoor units (Uv line)/Control wiring between outdoor units (Uc line)] L2 = Up to 1000 m
Outdoor unit and Other
U3 UU44 U1 UU22 U5 U6
Light Commercial
Air to Water Heat Pump
U3 U4
U3 U4
Air to air heat exchanger
General purpose equipment control interface
Indoor unit * Hydro unit
U1 UU24 Uv
A UB6
TCC-LU4INK adapter
U4
A UB6
Uh 4 A UB6
Remote controller *
- The wiring specifications in the system diagram above are the same even when the indoor unit or remote controller are other than the U series.
10-EN
Modbus interface
Installation Manual
To connect 2 cables, change the preset cable clamp to the provided one and fix the cables with the cable clamp as shown in the figure left.
The shielded wire of the Uh Line communication cable must be earthed on the air conditioner. Do not connect the shield wire to the terminal block. It should be open and insulated.
The shielded wire of the RS-485 communication cable must be earthed on address 1 (Modbus interface address SW=1) Modbus interface. The shielded wires must be crimped with closed end connectors on interfaces with address of other than 1. The shielded wire ends must be insulated and left open.
LINK(Uh)
U3 U4 FG A(+) B(-) SG
Air conditioner
Modbus Master
Connect the earth wire to the earth terminal on the chassis.
Power supply 220V-240 VAC
(50/60 Hz) Connect the power supply cable and earth wire to the terminals
using ring terminals with insulation sleeve.
L N
RS-485
SW8 12
SW3
LED4 LED2 LED5 LED3 LED1
SW2
SW1
1234 SW5 SW6 SW7
SW4
REQUIREMENT
Disconnect the appliance from the main power supply. This appliance must be
connected to the main power supply by a circuit breaker or switch with a
contact separation of at least 3 mm. Fasten the screws to the terminal with
torque of 0.5 Nm.
Wiring connection
The following describes a connection example when two or more Modbus interface
units are used.
Termination resistance setting (See “6 Setting” for the setting method.)
· Set the RS-485 termination resistance to “120 ohm” for address1 (Modbus
interface address SW1=1) Modbus interface unit, and set to “open” for other
units.
· Set the Uh Line Termination resistance. Refer to “Termination resistance
setting”(P.6)
Shield earthing
· The shielded wire of the RS-485 communication cable must be earthed on
address 1 (Modbus interface address SW=1) Modbus interface. Fix the shielded
wire of RS-485 communication cable with metal cable clamp and screw it to the
chassis to earth it. The shielded wires must be crimped with closed end
connectors on interfaces with address of other than 1. The shielded wire ends
must be insulated and left open.
· Do not connect the shield wire to the terminal block. It should be open and
insulated. The shielded wire of the Uh Line communication cable must be
earthed on the air conditioner.
11-EN
Modbus interface
Installation Manual
Modbus-Master (Locally procured)
AB (+) (-)
Do not connect the shielded wire of Uh Line communication cable to the earth.
LINK(Uh) U3 and U4 have no polarity.
LINK(Uh)
SG B A FG U3 U4
RS-485
Set the RS-485 termination resistance on the address1 unit (Modbus interface address SW1=1) and host system. Do not set it here.
Uh Line termination resistance
SW1
Refer to “Termination resistance
4
setting”(P.6)
Outdoor unit
Outdoor unit
SW5
SW6
U4 U3 U2 U1 U2 U1
U2 U1
U4 U3 U2 U1 U2 U1
U4 U3
Central remote controller
Indoor unit Remote controller Indoor unit
Remote controller
Indoor unit
NL
Power supply
Indoor unit Central remote controller
The shielded wire of the RS-485 communication cable must be earthed on address
1
CAUTION: RS-485 communication cables A(+) and B(-) have polarity. Be careful
when connecting the RS485 wires.
LINK(Uh)
SG B A FG U3 U4
RS-485
SW1
1
SW5 SW6
Outdoor unit
Outdoor unit
U4 U3 U2 U1 U2 U1
U2 U1
U4 U3 U2 U1 U2 U1
U4 U3
Indoor unit Indoor unit
Remot e controller
Remote controller
Power supply
NL
RS-485 termination resistance is set by Modbus interface of address setting switch SW1=1 only.
Set the Modbus interface address with SW1. Assign 1 to F(15) to each address to avoid duplication. CAUTION: The SW1 setting is read when the power is turned on. Push the reset switch SW7 after changing the address.
12-EN
Modbus interface
Installation Manual
6 Setting
The following settings are necessary to use Modbus interface. · SW1 Sets the
Modbus slave addresses of the Modbus interface.
A single Modbus interface uses three Modbus slave addresses. (One address for
the current interface and two addresses for potential interfaces.) When two or
more Modbus interfaces are used for a single line RS-485 bus, set the
addresses as indicated in the table below. Assign address numbers in ascending
order, from smallest to largest.
Modbus interface No.1 No.2 No.3 No.4 No.5
Address 1 4 7 10 13
CAUTION
· For the Modbus interface whose address SW1=1, perform termination resistance setting. · When the SW1 setting has been changed, press the reset switch SW7. The new address setting is read. · When the setting of bit3 and bit4 of SW3 has been changed, press the reset switch SW7. The new set value is read.
· SW2 · SW3
· SW4 · SW5 · SW6 · SW7
· SW8
Test switch
Not used during operation. Set these switches to zero (0) or “all OFF”.
Test switch
Bit1: Central controller ID setting mode switch
Bit2: Switches the LED5 display for test runs.
Bit3, 4: RS-485 baud rate setting (9600/19200/38400) bps.
Test switch
Not used during operation.
RS-485 termination resistance select switch
Set “120 ohm” only when the Modbus interface address SW=1, and set “open” for other Modbus interfaces.
Uh Line termination resistance select switch
Refer to “Termination resistance setting”(P.6)
Reset switch
When performing an address setting with SW1, push this reset switch after the address setting to read
the set value.
Test switch (Not used during operation. All OFF usually)
13-EN
Modbus interface
Installation Manual
LINK(Uh)
RS-485
U3 U4 FG A
B
SW3
LED4 LED2 LED5 LED3 LED1
SW2
SW1
1234 SW5 SW6 SW7
SW4
SW8 12
SW1 SW2
SW3
SW4 SW5
Modbus interface address set switch
1-F
Modbus interface address
0
Not used
Test switch (0 usually)
Bit1: Uh Line communication setting mode switch.
OFF: Normal circumstance; ON: Central controller ID setting mode
Bit2: Switches the LED5 display for test runs.
OFF RS-485 communication status indicator.
ON Uh Line communication status indicator.
Bit3, 4: RS-485 baud rate setting (9600/19200/38400) bps.
3 OFF, 4 OFF 9600 bps, 3 ON, 4 OFF 19200 bps,
3 OFF, 4 ON 38400 bps, 3 ON, 4 ON 19200 bps.
Test switch
RS-485 termination resistance select switch
ON
120 ohm
ON
Open
SG
L
N
SW6
Uh Line termination resistance select switch
ON
100 ohm
ON
Open
SW7 Reset switch SW8 Test switch (all OFF usually) LED1 Power indicator LED2 RS-485 communication status indicator LED3 Uh Line communication status indicator LED4 Uh Line communication error indicator LED5 Test indicator
REQUIREMENT
· RS-485 termination resistance select switch SW5. Set “120 ohm” only when the
Modbus interface address SW=1, and set “open” for other Modbus interfaces.
· The Uh Line termination resistance is set on the air conditioner side. Set
SW6 to “open”.
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Modbus interface
Installation Manual
Central controller ID setting mode
The central controller ID setting mode changes the central controller ID of
the Modbus interface. (central controller ID at the time of factory shipping
is central controller ID 20.) The central controller ID number indicates the
Uh Line address and communication priority for the Uh Line compatible central
control device.
Change the central controller ID in the following cases. · If using Modbus
interface with a central control device not compatible with Uh Line, set the
central controller ID as “old controller.”
(1) Transition to central controller ID setting mode
· If setting the Modbus slave address with SW1, make a note of the SW1 value
before performing central controller ID setting operations.
· Turn on bit1 of SW3. (2) Verification of central controller ID
· If SW1 is set to 0, central controller ID is displayed by LED2 to LED5.
=ON, =OFF
Central controller ID
LED5
LED4
LED3
LED2
Central controller ID7
Central controller ID8
Central controller ID9
Central controller ID10
Central controller ID11
Central controller ID12
Central controller ID13
Central controller ID14
Central controller ID15
Central controller ID16
Central controller ID17
Central controller ID18
Central controller ID19
Central controller ID20 (initial value)
Old controller
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Modbus interface
Installation Manual
(3) Change of central controller ID · Change SW1 to 1-F and press SW4. · If using Modbus interface with a central control device not compatible with Uh Line, set as “old controller.”
Central controller ID Central controller ID7 Central controller ID8 Central controller ID9 Central controller ID10 Central controller ID11 Central controller ID12 Central controller ID13 Central controller ID14 Central controller ID15 Central controller ID16 Central controller ID17 Central controller ID18 Central controller ID19 Central controller ID20 (initial value) Old controller
SW1 1 2 3 4 5 6 7 8 9 A B C D E F
NOTE
Because the Uh Line compatible central control device uses high-order central
controller ID, setting of central controller ID1 to ID6 cannot be done with
Modbus interface.
(4) Conclusion of central controller ID setting mode · Turn off bit1 of SW3. ·
Return the SW1 value to that of the Modbus slave address.
IMPORTANT Immediately after the power is turned on for the Modbus interface,
the SW1 value is the Modbus slave address. When the power is turned on, if the
SW1 value is that of the central controller ID or is 0, the Modbus interface
will not operate properly. When concluding the central controller ID setting
mode, be sure to return the SW1 value to that of the Modbus slave address.
16-EN
Modbus interface
Installation Manual
7 Test run check
Before starting test run
· Set the indoor unit central control address so that it does not match any
other indoor unit addresses. · Be sure to press the reset switch SW7 on the
Modbus interface when the indoor unit central control address
setting has been changed or added.
Test run
(1) Check the communication status between Modbus interface and indoor unit or
TCB-IFCG1TLE with LED5. Check that the communication between Modbus interface
and each indoor unit or TCB-IFCG1TLE connected is normally performed by
selecting an indoor unit or TCB-IFCG1TLE using SW1 to SW3.
Confirming procedure: · Set bit2 of SW3 to “ON” during normal operation. · Set
the central control address of the target indoor unit with SW1 and SW2. Set
SW1 and SW2 according to
the “Indoor unit central control address and SW1/SW2 setting” table below. ·
Communication status is displayed by LED5.
Communication status with indoor unit Normal Error
Invalid indoor unit
LED5 Lighting Blinking
Light off
Remarks
Communication with the indoor unit was established previously, but is disabled
currently. Communication with the indoor unit has never been established.
· The protocol for communication with an indoor unit is displayed by LED4.
Protocol for communication with indoor unit
LED4
Note
In communication via Uh Line
On
When Modbus interface is performing communication with the relevant indoor unit via Uh Line.
In communication based on old communication protocol
When Modbus interface is performing communication with Blinking the relevant
indoor unit based on old communication
protocol.
(Example) Check the communication status of indoor unit with a central control address of 41. Set bit2 of SW3 to “ON”, SW2 to “2” and SW1 to “8”.
Indoor unit or TCB-IFCG1TLE central control address and SW1/SW2 setting
Indoor unit
Indoor unit
Indoor unit
Indoor unit
central control SW2 SW1 central control SW2 SW1 central control SW2 SW1 central control SW2 SW1
address
address
address
address
1
00
17
10
33
20
49
30
2
01
18
11
34
21
50
31
3
02
19
12
35
22
51
32
4
03
20
13
36
23
52
33
5
04
21
14
37
24
53
34
6
05
22
15
38
25
54
35
7
06
23
16
39
26
55
36
8
07
24
17
40
27
56
37
9
08
25
18
41
28
57
38
10
09
26
19
42
29
58
39
11
0A
27
1A
43
2A
59
3A
12
0B
28
1B
44
2B
60
3B
17-EN
Modbus interface
Installation Manual
Indoor unit
Indoor unit
Indoor unit
Indoor unit
central control SW2 SW1 central control SW2 SW1 central control SW2 SW1 central control SW2 SW1
address
address
address
address
13
0C
29
1C
45
2C
61
3C
14
0D
30
1D
46
2D
62
3D
15
0E
31
1E
47
2E
63
3E
16
0F
32
1F
48
2F
64
3F
65
40
81
50
97
60
113
70
66
41
82
51
98
61
114
71
67
42
83
52
99
62
115
72
68
43
84
53
100
63
116
73
69
44
85
54
101
64
117
74
70
45
86
55
102
65
118
75
71
46
87
56
103
66
119
76
72
47
88
57
104
67
120
77
73
48
89
58
105
68
121
78
74
49
90
59
106
69
122
79
75
4A
91
5A
107
6A
123
7A
76
4B
92
5B
108
6B
124
7B
77
4C
93
5C
109
6C
125
7C
78
4D
94
5D
110
6D
126
7D
79
4E
95
5E
111
6E
127
7E
80
4F
96
5F
112
6F
128
7F
(2) Check the communication status between Modbus Interface and outdoor unit with LED5. Check that the communication between Modbus Interface and each outdoor unit connected is normally performed by selecting an outdoor unit using SW1 to SW3.
Confirming procedure: · Set bit2 of SW3 to “ON” during normal operation. · Set
the line address of the target outdoor unit with SW1 and SW2.
Set SW1 and SW2 according to the table below, titled “Line address of outdoor
unit and SW1/SW2 setting”. · Communication status is displayed by LED5.
Communication status with outdoor unit Normal Error
Invalid outdoor unit
LED5 Lighting Blinking
Light off
Remarks
Modbus interface is in communication with the outdoor unit.
Communication with the outdoor unit was established previously, but is
disabled currently.
Communication with the outdoor unit has never been established.
· The protocol for communication with an outdoor unit is displayed by LED4.
Protocol for communication with outdoor unit
LED4
Note
In communication via Uh Line
On
When Modbus interface is performing communication with the relevant outdoor unit via Uh Line.
In communication based on old communication protocol
When Modbus interface is performing communication with Blinking the relevant
outdoor unit based on old communication
protocol.
(Example) Check the communication status of outdoor unit with line address of 10. Set bit1 of SW3 to “ON”, SW2 to “8” and SW1 to “9”.
18-EN
Modbus interface
Installation Manual
Line address of outdoor unit and SW1/SW2 setting
Line address of outdoor unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
SW2 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
SW1 0 1 2 3 4 5 6 7 8 9 A B C D E F
Line address of outdoor unit 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
SW2 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
SW1 0 1 2 3 4 5 6 7 8 9 A B C D E F
NOTE For air conditioner (multi type), the line addresses of outdoor unit 29 to 32 are not used.
(3) Perform the communication status checking between Modbus interface and Modbus Master. Check that the communication with Modbus Master is normally performed. When bit2 of SW3 is set to “OFF”, the communication status with the Modbus Master is displayed by LED5.
Communication status with Modbus Master Normal reception
Error
LED5 Lighting
Light off
Remarks
Lights for one second
A communication error occurred or no data has been received.
LED indication during normal operation
LED1 LED2 LED3 LED4 LED5
LED Power indicator RS-485 communication status indicator Uh Line communication status indicator Uh Line communication error indicator TEST indicator
Description Lights while the power is on. Blinks during RS-485 communication. Blinks during Uh Line communication. Lights temporarily when Uh Line is busy. Used in the test mode.
19-EN
Modbus interface
Manufacturer / Importer
Installation Manual
20-EN
Klimaniza ilikin daha ayrintili bilgiler için ürün tanitim broürlerine,
gerektiinde Alarko Carrier Yetkili Satici ve Servislerine ulaabilmek için 444
0 128 numarali
Müteri Danima Hattimiza bavurabilirsiniz.
DEC0309101-1
References
Read User Manual Online (PDF format)
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