Serial Port Server Ethernet to Network RS232 RS485 Modbus TCP |

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I. Brief Introduction of Module Function ZQWL-EthRS-D1 is a compact, high performance and high stability serial server module. It has one RS232 interface, one RS485 interface and one Ethernet interface. Users can easily complete the interconnection between serial devices and network devices. 2. Hardware parameters Serial number Name parameter One Model ZQWL-EthRS-D1 Two Power Supply 5V Three CPU 32 Bit High Performance Processor Four Ethernet interface 10M/100M Adaptive Ethernet Interface, 2KV Electromagnetic Isolation Five RS232 Baud rate support 600 ~ 1024000, DB9 has male head and female head optional (please note when purchasing, default hair male head) Six RS485 The interface has ESD protection function, and the baud rate supports 600-1024000, 5.08mm terminal lead-out, which is convenient for wiring. Seven Communication Indicator On-board RUN, RS232 and RS485 indicators for easy use Eight Reset/restore factory settings With Reset/Recovery Exit Setup Signal III. Network Characteristics · Support static and dynamic IP; · Supporting automatic switching between crossed and direct lines · The working port, target IP and target port can be set. · In TCP server mode, each serial port supports four client connections, and multiple users can manage a serial device at the same time. · Support DNS function; · Support network online upgrade firmware function; · It can communicate across network segments, switches, routers, work in local area networks, or on the Internet. · Support protocols include ETHERNET, ARP, IP, ICMP, UDP, DHCP, TCP; Modbus TCP to Modbus RTU · Support Modbus TCP to Modbus RTU IV. Hardware Interface Description Module interface:    

                        

Module size:     V. Module Indicator Illustration This module has four LED indicators: POWER, RUN, RS232 and RS485. Its basic meaning is as follows: Table 1 Basic Meaning of Indicators Serial number Name Meaning bright Extinguish One POWER System Power Indicator, Red System power supply is normal System power supply abnormality Two RUN System Operating Indicator, Turquoise Green In normal operation, the turn-off frequency is about 1Hz. Three RS232 RS232 Data Flow Indicator, Turquoise Green When RS232 has data flow, the lamp flickers Four RS485 RS485 Data Flow Indicator, Turquoise Green When RS485 has data flow, the lamp flickers When the system runs abnormally or in configuration mode, the status of the indicator lamp means as shown in Table 2: Table 2 Significance of Indicator Status Serial number Status name Indicator status One Broken net RUN, RS232 and RS485 are all bright Two Firmware update RUN, RS232 and RS485 flicker synchronously at a frequency of about 3Hz Three Automatic acquisition of IP RUN, RS232 and RS485 are on and off until IP is successfully obtained or returns to normal after overtime. Module parameter configuration This module can configure parameters by "Intelligent Cascade Oral Server Configuration Software" and web pages. Note that the newly set parameters will not take effect until the module is restarted. (1) Configuration parameters of software configuration through intelligent nested oral server The parameters that can be configured are as follows: module IP, subnet mask, gateway, DNS server, MAC address (or factory default), parameters of two serial ports, and firmware upgrade of module by configuration software. The method of use is as follows: 1. Connect the module with the computer or router through the network cable, and power the module. RUN light flashing (about 1Hz) indicates that the module starts normally. 2. Basic parameter setting   (2) Configuring parameters through web pages Web page configuration provides two versions in Chinese and English. If you want to use the Web page to configure parameters, you must first know the IP of the module. If you forget carelessly, you can hold down the "CFG" button for 5 seconds and restore the factory settings of the module. At this time, the IP of the module is 192.168.1.253. Enter: http://192.168.1.253/. When you return to the browser, the configuration page appears, and you need to authenticate the user name and password (consistent with the configuration software). The initial user name is admin, and the initial password is admin. Chinese version:   English version   Once the login is successful, you can configure the module: As shown above, in the "IP Address Configuration" page, you can configure the module's IP information and whether you want to use automatic IP acquisition.     As shown above, in the "RS485 Configuration" page (RS232 is the same as this), you can set the required RS485 parameters. As shown above, in the "Password Management" page, you can modify the module's login password. Module Testing (1) Transmit test Because this module is another version of ZQWL-EthRS-Z1, we use Z1 to test for the best test effect. Test method: In any working mode, set the baud rate of serial port to 115200, data bit 8, stop bit 1, no check, use wire to connect TX and RX of two TTLs, use TCP debugging assistant to send 110 bytes of data to the module every 10 ms (or 11 bytes of data to the module every 1 ms), the data transmission speed reaches 11,000 bytes per second (two TTLs at the same time), almost. It is close to the maximum theoretical value at this baud rate. The test results are as follows: