- Key words: Huamao Auto, serial communication
- Summary: Serial communication is a common way of data communication. It uses serial interface to send and receive data between two devices. In the field of industrial automation, serial communication is very important in industrial automation, which is used to control and monitor machines and production lines. It can connect various sensors, actuators and controllers to achieve efficient production process control.
Serial communication is a common way of data communication. It uses serial interface to send and receive data between two devices. In the field of industrial automation, serial communication is very important in industrial automation, which is used to control and monitor machines and production lines. It can connect various sensors, actuators and controllers to achieve efficient production process control.
In order to meet the needs of users for efficient and stable communication, here we summarize several serial communication modules of Huamao Oute to give your equipment more powerful connectivity.
Card type large capacity expansion AU7 1841 serial port module
① Set serial port parameters through XML file without using configuration software, and the settings are flexible;
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| Duplex mode: 0: Full duplex (RS232/RS422) 1: Half duplex (RS485) |
| Baud rate: 0:1200 1:2400 2:4800 3:9600 4:19200 5:38400 6:57600 7:115200 |
| Data bits: 0: 8 bits 1: 7 bits |
| Stop bit: 0:1 bit 1: 2 bits |
| Parity bit: 0: No verification 1: Odd check 2: Even check |
| Serial port receiving timeout: 5-200 (unit: ms) |
Modbus Master ResponseTimeout | Modbus RTU master station mode response timeout: If the slave station fails to respond after the set time, the communication timeout is judged; 5-5000 (unit: ms) |
| Modbus RTU master station mode polling time: In MBS master station mode, the interval time from one completed instruction to the next; Unit: ms |
② Manually configure the data and address that need to be read and written, without writing the serial communication program, and it is convenient and fast to use.
③ The 4 serial ports can be independently configured with the working mode to realize one module for multiple purposes.
④ When connecting Modbus RTU slave devices, a single serial port supports the connection of 32 slave stations.
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| SM1877 high-performance EtherCAT coupler, EtherCAT bus, 2 RJ45 ports, high-performance backplane bus, expandable 64 modules (32 high-performance modules+32 ordinary modules) or directly expandable 64 high-performance modules through expansion rack coupling, 24VDC power supply, with 8-bit dial code setting station ID address |
| SM1841 serial port communication module, two RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol, the fastest baud rate is 115.2Kbps, and the SM1877 high-performance coupler can expand 64 of this module. The serial port parameters are configured through XML files, and the master station does not need programming, which is easy to use |
| SM1841 serial port communication module, four RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol, the fastest baud rate is 115.2Kbps, and the SM1877 high-performance coupler can expand 64 of this module. The serial port parameters are configured through XML files, and the master station does not need programming, which is easy to use |
*See the product selection manual for more product models.
Card type serial communication coupler
① Set the serial port parameters through the web page, without the help of configuration software, and the settings are flexible;
② Manually set the data and address to be read and written, and then configure the corresponding data length in the programming software (EtherCAT supports direct scanning). There is no need to write serial communication program, and it is convenient and fast to use.
(AU7 877 ECT22-COM-H in the configuration interface of Beifu)
(AU7 877 PNT22-COM-H configuration interface in Potu)
③ Web page configuration parameters support import/export function to simplify batch module settings.
④ When connecting Modbus RTU slave devices, a single serial port supports the connection of 32 slave stations.
⑤ ECT serial port coupler supports modifying serial port parameters through CoE parameters.
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| SM877H serial communication coupler, EtherCAT bus, 3 RJ45 ports, WellAUBUS backplane bus, expandable 32 modules, 24VDC power supply, with 6-bit dial setting station ID address, 2 RS485 or RS232 interfaces, support Modbus RTU and free port protocol, and terminals are pluggable |
| SM877H serial communication coupler, Profinet RT bus, 3 RJ45 ports, WellAUBUS backplane bus, expandable 32 modules, 24VDC power supply, 2 RS485 or RS232 interfaces, support Modbus RTU and free port protocol, and terminals are pluggable |
*See the product selection manual for more product models.
Card type serial port expansion module
* AU7 841-COM22 / AU7 841-COM22-H
*2-way serial interface, supporting RS422, RS485, RS232
*During free port communication, a single channel supports receiving/sending 1024 bytes for a single time
*When connecting the Modbus RTU slave station, a single channel supports the connection of 32 serial port devices
*SM800H series couplers support extended card serial port module
① Set the serial port parameters through the web page, without the help of configuration software, and the settings are flexible;
② The addresses correspond one by one according to the web page configuration order, without the need to write serial port communication program, which is easy to use and fast to debug.
③ Web page configuration parameters support import/export function to simplify batch module settings.
④ When connecting Modbus RTU slave devices, a single serial port supports the connection of 32 slave stations.
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| SM841 serial port communication module, two RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol, the fastest baud rate is 115.2Kbps, and serial port parameters are configured through web pages. The master station does not need programming and is easy to use |
| SM841H serial port communication module, two RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol, with the fastest baud rate of 115.2Kbps. The serial port parameters are configured through software, and the master station does not need programming, which is easy to use |
*See the product selection manual for more product models.
Vertical serial port coupler
① Set serial port parameters through XML file without using configuration software, and the settings are flexible;
| |
| Duplex mode: 0: Full duplex (RS232/RS422) 1: Half duplex (RS485) |
| Baud rate: 0:1200 1:2400 2:4800 3:9600 4:19200 5:38400 6:57600 7:115200 |
| Data bits: 0: 8 bits 1: 7 bits |
| Stop bit: 0:1 bit 1: 2 bits |
| Parity bit: 0: No verification 1: Odd check 2: Even check |
| Serial port receiving timeout: 5-200 (unit: ms) |
Modbus Master ResponseTimeout | Modbus RTU master station mode response timeout: If the slave station fails to respond after the set time, the communication timeout is judged; 5-5000 (unit: ms) |
| Modbus RTU master station mode polling time: In MBS master station mode, the interval time from one completed instruction to the next; Unit: ms |
② Manually configure the data and address that need to be read and written, without writing the serial communication program, and it is convenient and fast to use.
③ The 4 serial ports can be independently configured with the working mode to realize one module for multiple purposes.
④ When connecting Modbus RTU slave devices, a single serial port supports the connection of 32 slave stations. (AU7 541E-4COM22-PNT single serial port supports the connection of 24 slave stations)
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| EtherCAT bus, 3 RJ45 ports, WellAUBUS backplane bus (black RJ45 interface network cable cascaded, the maximum length between super five network cable modules is 20 meters, and the total cumulative limit of extension cable is 150 meters), expandable 16 modules, 24VDC power supply, with 8-bit dial setting station ID address, four RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol baud rate of 115.2Kbps at the fastest, configure serial port parameters through XML file, and the master station does not need programming, IP20 protection grade, support DN35 guide rail installation |
| Profinet RT bus, 3 RJ45 ports, WellAUBUS backplane bus (black RJ45 interface network cable is cascaded, the maximum length between super five network cable modules is 20 meters, and the total cumulative limit of extension cable is 150 meters), 16 modules can be expanded, 24VDC power supply, dial with reset factory parameters, 4 RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol baud rate of 115.2Kbps at the fastest, configure serial port parameters through GSD file, and the master station does not need programming, IP20 protection grade, support DN35 guide rail installation |
| Profinet RT bus, 3 RJ45 ports, WellBUS backplane bus (black RJ45 port network cable is cascaded, and the maximum length between super class 5 network cable modules is 20 meters, and the total cumulative limit of extension cable is 150 meters), expandable 16 modules, 24VDC power supply, dialling with reset factory parameters, two RS422/RS232/RS485 interfaces, support Modbus RTU and free port protocol baud rate of 115.2Kbps, configure serial port parameters through GSD, and the master station does not need programming, 2-way thermal resistance acquisition. IP20 protection level, support DN35 guide rail installation, factory standard terminal resistance accessories |
*See the product selection manual for more product models.
