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Gree VRF Protocol Gateway

10

3 Product Installation

3.1 Product Size

3.2 Spatial Size for Electric Control Cabinet Installation

Gateway shall be installed in electric control cabinet; the front of gateway shall be hung

upward and fixed with 4 screws. See the following fig (for reference).

WARNING!

Power cord and communication line of Gateway must conduct routing separately (the distance

shall be over 15cm); otherwise, it might lead to Gateway communication malfunction!

The thin real line shown in the figure is communication wire and weak current wire, the thick real line is strong

current wire. Above lines are only for reference.

4 Gateway and BMS adopt Modbus RTU communication
connecting method

Gateway communication system include:

（

1

）

The communication between the gateway and BMS;

（

2

）

The communication between the gateway and air conditioner.

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Содержание VRF

Страница 1: ...VRF Protocol Gateway ...

Страница 2: ... and air conditioner 11 4 3 Setting of communication connection 12 5 Gateway and BMS adopt Modbus TCP or BACnet protocol communication connecting method 13 5 1 Selection of communication cable material 13 5 2 Communication Connection Method 13 5 3 Communication Connection Configuration 14 5 4 Gateway configuration 15 Chapter 2 Commissioning Operation 17 1 Commissioning of hardware 17 1 1 DIP Switc...

Страница 3: ...range it would result in a fire hazard or even damages to this device 7 For PLUGGABLE EQUIPMENT the socket outlet shall be installed near the equipment and shall be easily accessible 8 Do install this device inside the electric control cabinet which is located indoor and then is locked 9 Do install this device where it will not be subject to the electromagnetic interference or heavy dust CAUTION 1...

Страница 4: ...intenance personnel to set and manage each set of units on the spot they just need to sit in front of the computer to perform operation management such as viewing the operating status of building air conditioning system ON and OFF status of unit setting of temperature and humidity etc which not only greatly improves work efficiency but also reduces labor costs and management costs The gateway is a...

Страница 5: ...etwork can connect to 80 sets of indoor units at most CAN2 network L2 shown in Fig 1 and Fig 2 is CAN2 bus which consists of gateway and master outdoor unit of system one CAN2 network can connect to 16 sets of outdoor units and 255 sets of indoor units When the quantity of outdoor units exceeds 16 or the quantity of indoor units exceeds 255 it should be divided into two CAN2 networks System One sy...

Страница 6: ...ion gateway Modbus TCP fixed interface 502 UDP port in BACnet IP mode BAC0 Major components gateway instruction manual S Optical isolation relay Optical isolation relay RS485 LN02200010 The total distance of the communication cable needs to add a relay every time it exceeds 800 meters and it needs to add a relay every time the quantity of Modbus gateway exceeds 30 It needs to be adopted when the c...

Страница 7: ...een Gateway and the AC which adopts CAN protocol RS485 1 comm port connect to the BMS terminal through a two core communication line to realize the communication connection between the gateway and the BMS terminal or the connection between adjacent gateways RS485 2 comm port this device will not use this communication interface temporarily USB and SD card port this device will not use this interfa...

Страница 8: ...Power interface Input 12VDC800mA Self provided power source of convertor 2 Communication interface A wire of RS485 connect to 485 terminal R B wire connects to R See the instruction manual 3 Power indicator Constantly on when energized See the instruction manual 4 Communication indicator TX and RX indicators flash when the communication is normal See the instruction manual ...

Страница 9: ... 1 Introduction to functions Function of optical isolation relay 3 When the distance of the entire communication network node exceeds 800 meters the optical isolation relay is to ensure the signal integrity and prevent the signal from attenuating in the case of long distance communication 4 At present the general optical isolation relay can support the integrity of the communication signal of 32 n...

Страница 10: ...Gree VRF Protocol Gateway 8 2 4 2 Outline Note The picture is for reference only 2 4 3 Instruction of interface and indicator ...

Страница 11: ...ion indicator Data indicator flashes when the communication is normal See the instruction manual 2 4 4 Dimension 2 4 5 Notices for installation It must be fixed indoors to avoid collision exposure to the sun or rain It is recommended to place it in the monitoring room with the computer The original equipment of the manufacturer must be used and it is not allowed to purchase alternative products of...

Страница 12: ...tion line of Gateway must conduct routing separately the distance shall be over 15cm otherwise it might lead to Gateway communication malfunction The thin real line shown in the figure is communication wire and weak current wire the thick real line is strong current wire Above lines are only for reference 4 Gateway and BMS adopt Modbus RTU communication connecting method Gateway communication syst...

Страница 13: ...he communication between gateway and BMS via Modbus bus Shielding light general PVC sleeve twisted pair copper core cord L 800 2x0 75 IEC 60227 5 2007 When the communication distance is over 800m 4 2 Connecting method of communication between gateway and air conditioner Caution Communication connecting wire of gateway must adopt string connection rather than star connection ...

Страница 14: ... connection RS485 1 R R A1 B1 RS485 1 R R A1 B1 Gateway Gateway Step 1 Ensure the first gateway that should connect to BMS terminal connect the RS485 1 communication interfaces R and R of the gateway to the BMS terminal with communication cable as shown in Step in the figure Step 2 Connect the RS485 1 communication interfaces R and R of the gateway to the RS485 1 communication interfaces R and R o...

Страница 15: ... Material standard Remark Communication between gateway and BMS via network cable 10BMSE T or 100BMSE TX interleaving network cable or 100BMSE TX parallel network cable L 80 If the gateway directly connects to PC it needs interleaving network cable If the gateway connects to PC via router it adopts parallel network cable Communication between gateway and air conditioner Shielding light general PVC...

Страница 16: ...ommunication connection lines under Gateway must be in series connection star connection shall not be adopted 5 3 Communication Connection Configuration 1 Communication line connection between Gateway and PC Connection diagram between Gateway and PC user side 1 Adopt cross connection network cable Gateway shall directly connect to PC ...

Страница 17: ...he same network segment of gateway as refer to appendix A and then open the browser IE10 and above version Firefox or Google input the default IP address of gateway http 192 168 1 150 default user name config password config as shown below Setting of gateway protocol functions After inputting user name and password click the arrow to enter the setting interface as shown in Fig 7 12 7 13 and 7 14 i...

Страница 18: ...Gree VRF Protocol Gateway 16 ...

Страница 19: ...sk Whether to restart the gateway to make the setting come into effect Click yes and then the gateway is restarted Chapter 2 Commissioning Operation 1 Commissioning of hardware 1 1 DIP Switch NOTICE Before using this device please conduct DIP switch setting first otherwise the unit will not function normally Gateway dial up setting area is consisting of function DIP switch code 1 Diagram of Dial u...

Страница 20: ...tance Setting The 2nd dial code of the function dialer is used for setting the matching resistance of the gateway of 485 bus When the controller is at the beginning end of the 485 bus the controller needs to be set to be with matching resistance then the second bit of function dialer is set to 1 when the controller is not at the beginning end of the 485 bus set the controller to be without matchin...

Страница 21: ...ch indicator CAN RX When receiving the data of equipment eg AC unit which connects to gateway it blinks TX When transmitting data to the equipment eg AC unit which connects to gateway it blinks RS485 1 RX When the gateway receives data on the 485 bus it blinks TX When the gateway sends data to the 485 bus it blinks RS485 2 RX This device does not use this LED indicator TX This device does not use ...

Страница 22: ...ed the air conditioner re energize the gateway Check if the power indicator of gateway is constantly on Check if the operating indicator of gateway is flashing flash once for every 1 second Check if the CAN RX TX indicator of gateway is flashing Communication between the gateway and air conditioner is normal it can receive the data sent by the air conditioner End Correctly set according to Chapter...

Страница 23: ...is normal Troubleshootin g 2 CAN indicator of gateway flashes the communication with the air conditioner is normal End RS485 1 RX TX indicator of gateway flashes YES NO 2 2 2 Adopt Modbus TCP or BACnet communication method with BMS CAN TX indicator of gateway flashes BMS equipment sent the request control frame that meets the Modbus TCP protocol criterion CAN RX indicator of gateway flashes the co...

Страница 24: ...munication cable is not conductive Matched resistances of the nodes in the CAN bus have not been correctly set Communication distance of CAN bus is over 500m Check the conductivity of communication cable refer to 2 1 of Chapter 2 check if the communication connection between the gateway and air conditioner is correct By referring to 5 4 of Chapter 2 check if there is repeat equipment address of ga...

Страница 25: ... correct Equipment address of gateway is not correctly set Communica tion distance is too long Check the conductivity of communication wire by referring to 2 1 of Chapter 2 check if the communication connection between the gateway and the air conditioner is correct By referring to 5 4 of Chapter 2 check if there is repeat equipment address of gateway check if the equipment address of command frame...

Страница 26: ... BMS equipment is correct Check if the allocated address of gateway is correct The communicat ion distance of BMS network is over 80m By referring to 5 4 of Chapter 2 check if there is repeat equipment address of gateway check if the equipment address of data frame sent by BMS equipment is in consistent with the address of gateway Connect the gateway into local area network or reduce the communica...

Страница 27: ...cted and re connected Energize the unit The matched resistance has not been connected Correctly set the matched resistance The serial ports used by communication software is inconsistent with the serial ports of computer Change the serial ports or alter the serial port setting in the software The added unit address in the software is inconsistent with the actual address of unit Alter the address s...

Страница 28: ...pops up left click Settings to enter Windows Settings 2 Left click Network Internet in the following picture to enter the interface of Network Internet See in the picture below 3 Left click Network and Sharing Center in the following picture See in the picture below 4 Find Ethernet in the following picture Left click Ethernet and enter the interface of Ethernet Status See in the picture below ...

Страница 29: ...ter the interface of Ethernet Properties See in the picture below 6 Left click Internet Protocol Version 4 TCP IPv4 See in the picture below Then left click Properties as shown in the picture to enter the interface of Properties of Internet Protocol 4 TCP IPv4 See in the picture below ...

Страница 30: ...rties of Internet Protocol Version 4 TCP IPv4 as shown below change the IP address subnet mask default gateway as required address of network equipment for connecting Gateway must be the same as the network address of Gateway ME30 24 D1 BM Generally DNS remains unchanged ...

Страница 31: ...JF00304482 ...

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