ODOT-S4E2
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Catalog excerpts

ODOT-S4E2 - 1

Series Gateways ODOT-S4E2 User Manual Modbus RTU to Modbus TCP/IP Protocol Converter Sichuan Odot Automation System Co., Ltd. 2017-12 Copyright©2017 All rights reserved by odot

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Revision records: Ownership information Without the consent of the copyright owner, the whole or part of this document do not be republished as paper or electronic document. Disclaimer This document is only used to assist readers for using products.The company is not responsible for loss or mistake because of using this dodument. The text and product described in this document is constantly developing and improving. Sichuan Odot Automation System Co., Ltd. has the right to modify this document without notifying users.

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1 Description 1.1 Function This product, developed by Sichuan Zero Automation System Co., Ltd., is a Modbus RTU to Modbus TCP/IP protocol converter based on market demand and years of experience. All the Modbus RTU/ASCII slave devices with RS485/RS422/RS232 interface can connect to Modbus TCP/IP network and communicate with TCP clients. Realize high speed data transmission by connecting the low speed serial device to the high-speed Ethernet.This protocol converter has two type working mode , "transparent transmission" and "mapping" , which can achieve the maximum system compatibility. 1.2...

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through network port. ♦ RS485 surge protection, internal terminal resistance and bias circuit enhance stability. ♦The packet sending interval can be adjusted freely, and the use is more flexible. ♦ Self diagnostic, slave devices status live monitoring. ♦ One push to rest button, restore factory setting. ♦ 35mm standard guide rail. ♦ EMC comply EN 55022:2010 & EN55024:2010 international standard. To make the product works better,please operate it in the range of preference parameter. All the related technical parameters are shown in ’’Table 1”. Table 1

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Ethernet parameter Working mode Transparent transmission mode, address mapping mode,Modbus TCP protocol Number of TCP connection Max. 5 Serial parameter Number of serial Serial communication RTU mode & ASCII mode mode Baud rate Checking mode Mapping mode protocol Function code Modbus buffer 3xxxx 区(input register):2048 Word 4xxxx 区(hold register

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supply: 9-36 W)C ling Temperature: -*0-85''-i*y. 5-55%RH (non-condensing) 2.2 Status in LED indicators description Power t stales I transmit status I receive status ,1 transmit slatuS ,1 revive status There are total 6 LED status indicators.The symbol definition and status indicators are shown in "Table 2”.

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2.3 Terminals definition Device wiring adoptslOPin 3.81mm gap Plug-in terminals, the terminal definition of RS485 interface are shown in "table 3”.

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2.4. Reset switch Click the reset button by the paper clips. When all lights flash once,it means successful reset and the technical parameters of the gateway are as follows:

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Serial Gateway ODOT-S2E2 Poww supply: 9-36 VDC Operating Temperature: -M-85C Humidity: 5-3S16RH (non-orwidonsing) Symbol description PWR Power status ctH EttieT"®1 status m ****££ RX’ 1#50,,a! transmitslaluS Va ^ive status 3 HOW TO USE THE PROTOCOL CONVERTER 3.1. The description of protocol converter 3.1.1. Serial working mode There are two types of working modes : Master mode and slave mode. When the serial port works in master mode, the serial port can connect up to 31 Modbus RTU/ASCII slave devices without relaying.This mode is mainly used for data communication between Modbus TCP master...

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slaves. When the serial port works in slave mode,the serial port can connect to a Modbus RTU/ASCII master device. This mode can be applied as follows: (1) Data Communication Between Modbus TCP Client and Modbus RTU/ASCII Master Station. (2) Data communication between Modbus RTU/ASCII masters. (3) Modbus TCP client and a Modbus RTU/ASCII master communicate with a Modbus RTU/ASCII slave at the same time. 3.1.2.Gateway working mode There are two types of working modes: transparent mode and mapping mode .When "Transparent" mode is in a factory setting without data cache nor editing the address...

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equipment working condition, 263 points in total. Access to the "system diagnostic” area can obtain the slave station's information and used to setting the disconnection alarm. The distribution of the data storage area and the scope of the address coding are shown in table 5. 3.1.4 System diagnostic area The diagnosis system is divided into two parts. The first part: The address 0x2000-0x200F is in total of 16 word that is 256 bits as the "slave station error indicator area”. The number 1-247 are respectively corresponding to slave stations 1-247and keep 248-256 bit number. When the error...

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The second part :Address 0x2010-0x2106 Word ,total 247 words, as "from the station status indicator" area. Reading the area could obtain the salve stations’ current working status, the data encoding format is as shown in Table 7.

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3.3.1 Communicate between Modbus TCP client and Modbus RTU/ASCII slave station 3.3.1.1. Application topology m (5PPLC)

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3.3.1.2.Transparent transmission mode configuration 1. Open configuration software "odot MGCC Config”, Right click the slave configuration page and select "Add Device",Add "ODOT-S4 E2”. 2.Double-click "ODOT-S4E2" or right-click "ODOT-S4E2", Select “common device attributes”, Set the gateway working mode to Transparent in the popup page.

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3. Double-click "COM1" , "COM2" ,"COM3" , "COM4"or right-click "COM1" , "COM2" ,"COM3" , "COM4" and click "Serial Properties", the "Serial Settings" window pops up. After setting the communication parameters, click the "OK" button to save and return. Take COM1 as an example. The meaning of each parameter is as follows: Operating mode: It is used to set up gateway as master station or slave station in the network. Default is master mode. Modbus protocol type: it's used to set up the gateway's protocol type of the network between the communication of the serial port and other connected...

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