Any modification or repair was done by any person or organization other than EKO service personnel. The damage or defect is caused by not respecting the instructions of use as given on the product brochure or the instruction manual. Pg. 2 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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2. RoHS Directive 2002/95/EC EKO Instruments has completed a comprehensive evaluation of its product range to ensure compliance with RoHS Directive 2002/95/EC regarding maximum concentration values for substances. As a result all products are manufactured using raw materials that do not contain any of the restricted substances referred...
Amendment to the above directive: 93/68/EEC Date: Mar. 6, 2015 Position of Authorized Signatory: Deputy General Manager of Quality Assurance Dept. Name of Authorized Signatory: Shuji Yoshida Signature of Authorized Signatory: Pg. 4 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
3 - 1 . W A R N I N G / C A U T I O N 1. Setup Do not install MODBUS 485 RTU CONVERTER in a place where the MODBUS 485 RTU CONVERTER may get wet or soaked in water.
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4. Introduction The MODBUS 485 RTU converter called "M-Box" is a digital signal conditioner to convert the Voltage output of a solar radiation sensor, PT-100 or 10kΩ NTC temperature sensor into a MODBUS 485 RTU output. The converter can be used with all passive EKO radiometers or any other mV sensor to be connected to data loggers or inverters with a MODBUS 485 RTU input channel.
5 - 2 . S e t u p 1. Installation After installation of the solar sensor the Converter can be installed. Open the enclosure of the MODBUS 485 RTU Converter by releasing the 4 top screws. Guide the sensor cable through the cable gland and secure the cable gland to secure and seal the cable.
The converter can be connected to any device with MODBUS 485 RTU communication protocol. Mount the cover onto the enclosure and secure it with the 4 screws firmly. The MODBUS 485 RTU converter is now ready to be used. For proper operation one should apply a supply voltage in the range as specified.
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If a warning message regarding to the installation authorization, click “Yes” to proceed. Setup window appears; click “Next” to go to the next step. (Figure 6-1) Figure 6-1. Software Installation Window Pg. 11 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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Assign the destination location and click “Next” (Figure 6-2). Figure 6-2. Choose Destination Location Installation process finishes, the installation is complete. In the menu options Tools/languages different languages can be selected (English, Spanish, Portuguese, Japanese). Pg. 12 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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6-3. Wiring to RS-485 USB Controller Note: Power can be provided through a 9V battery (See optional items) 43715615 0 21 Pg. 13 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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Start Communication (Continuously reads the static and dynamic results from the node) Note: When different settings are made to the Node (e.g. Baudrate 38400), for communication the Baudrate setting always needs to correspond (38400). Pg. 14 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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The following Node parameters that can be changed without password. Settings need to be changed one by one followed by “Send Config”. Note the settings are reflected to MODBUS 485 RTU CONVERTER only when “Send Config” button is clicked.
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) then click “Send Config” button. Now the converter configuration (ID, Baudrate, Parity) can be edited. By placing the mouse pointer on each item, configurable values are shown. The settings are reflected to MODBUS 485 RTU CONVERTER when “Send Config” button is clicked.
The converter can be connected to any peripheral device communicating through MODBUS 485 RTU. Up to 100 units can be put in parallel and can be addressed individually. Pg. 17 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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7 - 2 . O p e r a t i n g The MODBUS 485 RTU communication data format is determined by the Modbus protocol. The commands are defined by the universal MODBUS RTU protocols. Table 7-1 Converter Configuration Contents...
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Same as above Same as above Same as above Same as above Node Number Baud Rate Parity Bit Pg. 19 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
No change to made to converter Settings will only be active after writing the new settings. settings Log data function doesn’t display Check the connection any measured data Pg. 20 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
9 - 2 . U S B C o n t r o l l e r a n d c o n f i g u r a t o r s o f t w a re Table 8-2. USB Controller RS-485 USB Controller / EKO Sense software Windows 7, 8 Weight 0,05 kg Cable 1m / Terminal block Pg. 21 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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9 - 2 . D i m e n s i o n s Unit in mm Figure 9-1. Dimensions Figure 9-2. Box Dimensions Pg. 22 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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8bit 8bit n * 8bit 16bit A silent interval interval (≧3.5 char) (≧3.5 char) Modbus Data (RTU) Table 7-4. Function Code Code: decimal Function Read Holding Registers Pg. 23 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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TC1(T) = a + b x T + c x T^2 + d x T^3 Where: ETC (E,T): Measuring voltage after correction Measuring voltage TC1(T): Correction Factor Measuring Temperature a, b, c, d: Correction Factor Pg. 25 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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Connect the A, B, and G terminal of connection cable to A, B, and G terminals on the Converter. Connect the other end to terminal numbers 1, 2, and G on RS-485/USB Converter. Then connect the USB cable of the RS-485/USB Converter to PC. Pg. 26 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
Please contact EKO for more information about pre-configured converter boxes. Figure A-2. 2 units of Signal Converter in Converter Box2: Power Supply Line and Signal Line Wiring Pg. 27 EKO INSTRUMENTS CO., LTD MODBUS 485 RTU CONVERTER Instruction Manual V1...
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