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Modbus Gateway(Mini)

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Содержание ME30-24/E6

Страница 1: ...Modbus Gateway Mini ...

Страница 2: ...d operational test before leaving the factory In order to avoid damage due to improper disassembly and inspection which may impact the normal operation of unit please do not disassemble the unit by yourself You can contact with the special maintenance center of our company if necessary 5 For personal injury or property loss and damage caused by improper operation such as improper installation and ...

Страница 3: ...mmunication Connection 10 2 12 2 1 12 2 1 1 DIP Switches 12 2 1 2 LED Display 14 2 2 15 2 2 1 Communication debugging with air conditioninig equipment 15 2 2 2 Communication debugging for BMS system 15 2 2 3 Abnormal treatment 16 3 16 3 1 Common troubleshooting for BMS 16 Component Introduction Component List Introduction Introduction of photoelectric isolation converter Introduction Installation ...

Страница 4: ...work can be connected to 80 IDUs at most the L3 bus is CAN1 bus CAN2 network represents CAN2 network and is consisting of Modbus Gateway Mini and master control ODU One CAN2 network can be connected to 16 sets of ODUs and 255 IDUs at most When the number of ODU exceeds 16 sets or IDU exceeds 255 units 2 CAN2 network shall be divided the L2 bus is CAN2 bus System a system is consisting of a set of ...

Страница 5: ...ommunication cord and every 30 Modbus gateway It s optional if the conditions are met Photoelectric isolation converter Photoelectric isolation converter GD02 EN02200020 Optional Optional is available only when BMS adopts the method of RS232 Centralized control cabinet The user shall prepare themselves Self configured 1 2 2 Detailed Introduction of Modbus Gateway Mini 1 2 2 1 General Functions Gre...

Страница 6: ...e communication between Modbus Gateway Mini and air conditioner RS485 communication interface It is connected to BMS through two core communication cable to realize communication between Modbus Gateway Mini and BMS or nearby Modbus Gateway Mini 1 2 3 1 2 3 1 Function introduction The function of photoelectric isolation converter is to conduct conversion to the RS232 signal of computer port and the...

Страница 7: ... the converter is self configured 2 Communication interface Line A of RS485 shall be connected to R of wiring terminal 485 and line B to R Interface of RS232 shall be connected to the RS232 of the computer Refer to the specification 3 Power indicator Always on after energization Refer to the specification 4 Communication indicator TX and RX indicator is blinking during normal communication Refer t...

Страница 8: ...olation repeater 1 2 4 1 Function introduction The function of photoelectric isolation repeater 1 Ensure signal completeness when the node distance of the whole communication network exceeds 800M to prevent signal reduction in long distance communication 2 At present general photoelectric isolation repeater can support the communication signal completeness for 32 nodes When the number of communica...

Страница 9: ...6 1 2 4 2 Appearance Note the appearance shall subject to actual objects the picture is for reference only Modbus Gateway Mini ...

Страница 10: ...onfigured 2 Communication interface Line A of RS485 shall be connected to R of wiring terminal 485 and line B shall be connected to R Refer to the specification 3 Power indicator It is always ON after connecting to power Refer to the specification 4 Communication indicator Data LED will flash during normal communication Refer to the specification Modbus Gateway Mini ...

Страница 11: ...d collision exposure or rain It s suggested to be placed with the computer inside the monitor room The original equipment must be used alternative products of the other models or brands are not allowed Separate power supply is required AC socket of 220V must be installed to supply power Modbus Gateway Mini ...

Страница 12: ...stallation Dimension of Electric Control Cabinet Modbus Gateway Mini shall be installed in the electric control cabinet The front side of gateway shall be hung upwards in horizontal level and secured by two screws Required installation space is shown as below only for reference Modbus Gateway Mini Device Installation ...

Страница 13: ... RVV L 800 2 0 75 IEC60227 5 2007 When communication distance exceeds 800m photoelectric isolation repeater shall be added Communication between Modbus Gateway Mini and air conditioner Light Ordinary PVC sheathed twisted pair copper wire RVV L 500 2 0 75 IEC60227 5 2007 The length of communication cable shall not exceed 500m 1 3 2 2 Communication Connection Way Notice All communication cables of M...

Страница 14: ...in step in the figure Step 3 The other Modbus Gateway Mini shall be connected in series as shown in step in the figure 2 Communication wire connection between Modbus Gateway Mini and air conditioner Step 1 Confirm the master ODU that each Modbus Gateway Mini shall be connected set master ODU with SA8 DIP Please refer to Communicaiton connection between Modbus Gateway Mini and air conditioner and a...

Страница 15: ...s introduced Meanwhile the master ODU in the first and end systems of CAN2 bus shall be set as with matched resistance In the following the detailed setting position and method of matched resistance of GMV5 DC inverter multi VRF are taken as example CAN2 bus Detailed meaning please refer to topology introduction 2 2 1 2 1 1 DIP Switches Notice Please set DIP switches before using this gateway Re e...

Страница 16: ...e Fourth Switch of Function DIP Switch S3 Setting of CAN2 Bus Matched Resistance Notice Notice Master outdoor unit or gateway of the system which is at the end of CAN2 bus must be set as with the matched resistance otherwise communication will be abnormal The fourth switch of function DIP switch is used for setting the CAN2 bus matched resistance of this gateway If the Modbus gateway is at the end...

Страница 17: ... The Second Switch of Function DIP Switch S3 Setting of gateway starting IDU project number Gateway starting IDU project number means the IDU range that this gateway can be handled The second switch of function DIP switch is used for setting the gateway starting IDU project number Gateway starting IDU project number is 1 this gateway can handle the IDU with project number from 1 128 Gateway starti...

Страница 18: ... it will be always on 2 2 2 2 1 Communication debugging with air conditioninig equipment 2 2 2 Communication debugging for BMS system Protocol interface Modbus RTU protocol Hardware interface RS485 Baud rate 9600 Start bit 1 Data not 8 Parity check bit None Stop bit 1 Please ask GREE ELECTRIC APPLIANCES INC OF ZHUHAI for BMS communication protocol Modbus Gateway Mini Communication Debugging ...

Страница 19: ...demonstrated or controller The communication cord is not twisted pair Change the communication cord to twisted pair Modbus Gateway Mini ia damaged Replace the Modbus Gateway Mini Disconnection in communication cord Weld the disconnected circuit Communication cord short circuit Repair the short circuit The twisted pair is too close to the power cord less than 15CM communication error occur due to b...

Страница 20: ...are Unit address added to the software is inconsistent with that of actual unit Revise address setting for the software unit The unit is not energized Energize the unit Chips are not inserted for ODU or IDU or the insertion direction is opposite with actual direction Re check the inserted chips and re insert it according to gap direction in PCB and re energize it Wrong or repeated unit address Rev...

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