Ebyte E831-RTU User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.

E831-RTU(8080T-485) User Manual

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Page 2: Table Of Contents
4.3.2 Automatic reporting of digital input DI ..............................19 4.3.3 Digital output DO time setting ..................................19 4.3.4 Switch DO restart output state setting ................................19 Important Notice ........................................20 Revise history .........................................20 About us ..........................................20 Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 3: Disclaimer
No warranty, either express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular purpose of the information. This document may be revised by EBYTE at any time. For most recent documents, visit www.ebyte.com.
Page 4: Features
1 Quick Start This chapter is a quick introduction to the E831-RTU (8080T-485) series products. It is recommended that users read this chapter systematically and follow the instructions to have a systematic understanding of the module products. Interesting chapters to read.
Page 5: Digital Input Connection
1.2 Simple to use Wiring: Connect the computer to E831-RTU (8080T-485) via USB to RS485. Power supply: E831-RTU (8080T-485) working voltage is DC 8~28V, 12V or 24V is recommended. 1.2.1 RS485 bus control Select the corresponding model and port, and click "Search" to search for the device.
Page 6 Once the device is found, click Stop At this time, you can see the device address of the current device, click to read parameters or write parameters, you can read parameters and configuration parameters. Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 7: Product Introduction
Note: Do not check automatic refresh when reading or writing parameters, and check automatic refresh after the configuration or reading is completed, otherwise the parameter writing or reading may not be successful. 2 Product introduction Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 8: Basic Parameters
Chengdu Ebyte Electronic Technology Co.,Ltd. E831-RTU(8080T-485) User Manual E831-RTU(8080T-485) is an IO product that supports 8-channel digital input (default dry contact) and 8-channel digital output (NPN transistor open-collector output). Modbus RTU protocol is supported. The product has a high degree of ease of use, and users can easily and quickly integrate into their own systems.
Page 10 5 NPN transistor open Digital output channel 4 collector output channel 4 NPN transistor open Digital output channel 3 collector output channel 3 NPN transistor open Digital output channel 2 collector output channel 2 Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 11 The indicator light is on, when there is both output and input, it is on at the same time, and the indicator light is cyan. Power Red LED, always on indicator Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 12: Instruction Reset Description
DI1 digital input (0x0010) ad only 10018 DI2 digital input 0x02 (0x0011) ad only 10019 DI3 digital input (0x0012) ad only 10020 DI4 digital input (0x0013) ad only 10021 DI5 digital input (0x0014) ad only Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 14: Modbus Address Table
Digital output time 100- (0x0052) setting (milliseconds) ad/writ 65535 40085 Switch restart output 0x00 - (0x0054) state setting ad/writ 0x100 reserve 40300 version number (0x012B) ad only 3.2 Modbus address table Modbus address table (default) Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 15: Rs485 Serial Port Baud Rate Code Table
Check Digit Value Table (default) verification even parity parity 3.5 Configure parameters through the host computer Select the "parameter setting" column to read and write parameters. For specific functions, see the product function introduction below. Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 16: Product Function
The device supports 3 pulse counting methods, rising edge counting, falling edge counting and level counting, see the pulse counting and clearing section below. 4.2 IO basic functions 4.2.1 Switch DO output 4.2.1.1 Read switch DO output Function code: 01, read coil status Address range: 00017(0x0010)~00023(0x0017) Example: Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 17: Read Switch Di Input
Read 8 -channel digital input value , DI input terminal DI1 and DIG are short-circuited, DI2 and DIG are not short-circuited , DI3 and DIG are short-circuited , and DI4 and DIG are not short-circuited . The read digital input value is 0x05 , corresponding to Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 18: Io Features
Description: The lower four bits of the register value represent the counts of DI6, DI5, DI4, DI3, DI2, and DI1 respectively. Writing "1" means the count is cleared and the pulse count is restarted. example: Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 19: Automatic Reporting Of Digital Input Di
DO5, bit4 corresponds to DO4, bit1 corresponds to DO1, such as when the power is turned on, DO4, DO2 are in the closed state, DO3, DO1 and other ports are in the open state, the corresponding register value is 0000 1010 , that is, 0xa0, "1" is the closed state , "0" is disconnected. Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
Page 20: Important Notice
E831-RTU(8080T-485) User Manual Important Notice Ebyte reserves the right of final interpretation and modification of all contents in this manual. Due to the continuous improvement of the hardware and software of the product, this manual may be changed without prior notice, and the latest version of the manual shall prevail.

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