Table of Contents
Summary of Contents for Cooper & Hunter Modbus Mini
- Page 1 MODBUS GATEWAY(MINI) Installation & Owner`s manual Modbus Gateway(Mini) Model: ME30-24/ E7(M) Thank you for choosing Cooper&Hunter, please read this installation & owner`s manual carefully before operation and retain it for future reference.
- Page 2 To Users Thank you for selecting C&H’s product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve expected operating effect, we hereby instruct as below: （1）...
- Page 3 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 debugging, unnecessary maintenance, violation of related national laws and rules and industrial standard, and violation of this instruction manual, etc., we will bear no liability.
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Page 4: Table Of Contents
Content 1 Safety Notices (Please be sure to abide) ..............1 2 User Notice ......................2 3 General Functions ....................3 4 Composition ......................4 5 Detailed Introduction of Modbus Gateway(Mini) ............4 5.1 Interface ......................4 5.2 LED Display ..................... 7 5.3 DIP Switches .................... -
Page 5: Safety Notices (Please Be Sure To Abide)
Modbus Gateway(Mini) 1 Safety Notices (Please be sure to abide) Warning: If not abide strictly, it may cause severe damage to the unit or the people. Note: If not abide strictly, it may cause slight or medium damage to the unit or the people. -
Page 6: User Notice
Modbus Gateway(Mini) 2 User Notice Dear customer： Please read this manual carefully prior to installation and operation and strictly observe all installation and operation instructions covered in the manual. WARNING! （1） Installation shall be performed by the qualified personnel; otherwise it would result in a fire hazard or electric shock. -
Page 7: General Functions
Modbus Gateway(Mini) Notice！ （1） Be sure the specified adaptor is used; otherwise this device would work improperly or even be damaged. （2） Be sure this device is setup in place; otherwise it would result in communication fault. （3） Be sure the communication line is connected to the correct interface; otherwise it would result in communication fault. -
Page 8: Composition
Modbus Gateway(Mini) 4 Composition The product contains following items. Modbus Gateway(Mini) 1 set Owner’s Manual 1 set 5 Detailed Introduction of Modbus Gateway(Mini) 5.1 Interface 5.1.1 Interface Function Drawing... - Page 9 Modbus Gateway(Mini) 5.1.2 Power The input power is 12V DC, external power supply can be prepared. Note: pay attention to the polarity of power input and connect power according to the interface instruction.
- Page 10 Modbus Gateway(Mini) 5.1.3 Communication Interfaces CAN communication interface: It is connected to air conditioner through two- core connection wire, to realize 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).
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Page 11: Led Display
Modbus Gateway(Mini) 5.2 LED Display LED indicators shown in the above figure are divided into two parts: status indicators (power) and communication indicators(CAN, RS485). Operation status of each indicator is shown in the following table. When the data is transferred to the equipment (e.g. unitary unit) connected with Modbus Gateway(Mini), it will flash. -
Page 12: Dip Switches
Modbus Gateway(Mini) 5.3 DIP Switches Notice! Please set DIP switches before using this gateway. Re-energize the device after setting DIP switches. Otherwise this device cannot operate normally! Setting area of Modbus gateway DIP switch is located inside the product, including address DIP switch and function DIP switch. 5.3.1 Setting of Address DIP Switch Address DIP switch consists of S1 and S2. - Page 13 Modbus Gateway(Mini) 5.3.2 Address DIP Switch S1,S2—Address Setting of Modbus Gateway Notice! Please set the address DIP switches before using this gateway. The network DIP switch address of the same bus cannot be repeated, otherwise communication error may happen. Modbus Gateway(Mini) address setting range: 1~255. Detailed DIP value please refer to the Address DIP Form.
- Page 14 Modbus Gateway(Mini) Setting method of address 43 is shown as below: 5.3.3 The Third Switch of Function DIP Switch S3 - Setting of Modbus Bus Matched Resistance Notice! The third switch of function DIP switch is used for setting the matched resistance of this gateway in Modbus bus.
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Page 15: Application
Modbus Gateway(Mini) DIP switch of matched resistance is shown as below: 5.2.4 The 1st, 2nd and 4th Switch of Function DIP Switch S3 – Reserved functional dial code place number The 1st, 2nd and 4th of functional dialer is reserved functional dial code places. The 1st and 2nd places have no functions yet. -
Page 16: Topological Graph
Modbus Gateway(Mini) 6.2 Topological Graph 6.3 Topology Introduction Modbus bus:1 Modbus bus:L1 represents Modbus bus. Unit:one set of unit consists of one set of outdoor unit and one set of indoor unit. - Page 17 Modbus Gateway(Mini) Unit 1: Air-Cooled Packaged AHU. Unit 2: Big Duct Type Unit. CAN1 network: network of the unit shown in the figure is CAN1 network, which consists of Modbus Gateway (Mini), outdoor unit and indoor unit; bus shown in L2 in the network is CAN1 bus.
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Page 18: Product Installation
Modbus Gateway(Mini) 7 Product Installation 7.1 Product Dimension and Installation Space of Electric Control Cabinet 7.1.1 Product Dimension Unit: mm... - Page 19 Modbus Gateway(Mini) 7.1.2 Installation 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).
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Page 20: Communication Connection
Modbus Gateway(Mini) Unit: mm 7.2 Communication Connection Communication system of Modbus Gateway(Mini) includes: （1） Communication between Modbus Gateway(Mini) and BMS; （2） Communication between Modbus Gateway(Mini) and air conditioner. - Page 21 Modbus Gateway(Mini) 7.2.1 Material Selection of Communication Cable Comm- Cable Communicati- Material of Material unicati- on diameter Remark on system cable standard cable L(m) When Light/ communic- Ordinary ation Communicati- distance on between sheathed exceeds L≤800 ≥2×0.75 Modbus C60227- twisted 800m, Gateway(- Mini) 5:2007...
- Page 22 Modbus Gateway(Mini) 7.2.2 Communication Connection Way Notice! All communication cables of Modbus Gateway(Mini) must be connected in series instead of in star mode. Communication connection between Modbus Gateway(Mini) and BMS.
- Page 23 Modbus Gateway(Mini) 7.2.3 Setting of Communication Connection （1） Communication wire connection between Modbus Gateway(Mini) and BMS: Step 1: Confirm the first Modbus Gateway(Mini) (Modbus Gateway(Mini)1 as shown in the figure) that needs to be connected to BMS. Connect the port of RS485 of this gateway and the BMS with communication cable, as shown in step ①...
- Page 24 Modbus Gateway(Mini) Gateway(Mini) (Modbus Gateway(Mini)2 as shown in the figure) with communication cable; as shown in step ② in the figure. Step 3: The other Modbus Gateway(Mini)shall be connected in series; as shown in step ③ in the figure. （2） Communication wire connection between Modbus Gateway(Mini) and air conditioner: Step 1: ensure that the unitary unit for connecting to each gateway has connected via CAN1.
- Page 25 Modbus Gateway(Mini) Step 2: Please refer to Chapter 5.3.3 and conduct matched resistance setting for Modbus Gateway(Mini). Note: In Modbus bus, if the connected Modbus Gateway(Mini) exceeds 30 or communication distance exceeds 800m, one photoelectric isolation repeater shall be added. Connect the R+ and R- port of photoelectric isolation repeater with the R+ and R- port of RS485 communication port of nearby Modbus Gateway(Mini).
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Page 26: Annex: Dip Address
Modbus Gateway(Mini) 8 Annex: DIP Address 0~31 DIP address table 32~63 DIP address table addr addr... - Page 27 Modbus Gateway(Mini) 64~95 DIP address table 96~127 DIP address table addr addr...
- Page 28 Modbus Gateway(Mini) 128~159 DIP address table 160~191 DIP address table addr addr...
- Page 29 Modbus Gateway(Mini)
- Page 30 Modbus Gateway(Mini) 192~223 DIP address table 224~255 DIP address table addr addr...
- Page 31 Modbus Gateway(Mini)
- Page 32 Cooper&Hunter International Corporation www.cooperandhunter.com...
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