St1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name: Normal form; mso-tstyle-rowband-size:0; mso-tstyle-colband-size: 0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt Mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso -fareast-language:#0400; mso-bidi-language:#0400;} Substation automation and unattended substations are hot topics in today's power grid dispatch automation field, and their development momentum is just in the ascendant. There is a view in foreign countries that people are vulnerable to many factors such as the environment, emotions, personality, diseases, and so on, and therefore are themselves unreliable factors. There are indeed many accidents caused by human misoperation. From this perspective, unattended operation can indeed improve operational reliability. The design of the access system for the station automation and unattended station should technically ensure that the hardware interface of the station automation system meets international standards. At present, most of the connections between the components of the decentralized substation automation system at home and abroad mostly use the serial port communication method (RS232C, RS422, RS485 bus, etc.), and the communication speed and resource sharing degree are limited, so it is recommended to use the local area network. (LAN) communication method. CONEXTOP() is a device networking product and solution provider from Germany and has more than 10 years experience in the development of device networking products. NePort series RJ45 serial port networking module is a highly integrated, high-performance embedded device networking module released by CONEXTOP in early 2002. It provides a compact, high-performance and low-cost network connection for customers' products in a compact size. In this way, any MCU with a serial interface can easily connect to Ethernet. There is a strong electromagnetic field disturbance in the substation. From the perspective of anti-electromagnetic interference, nport comes with 1.5KV electromagnetic isolation. The implementation of substation automation system and unattended operation mode depends to a large extent on the reliability of the equipment. The equipment here refers not only to automation equipment but more importantly to electrical main equipment. According to the characteristics of the substation automation system, it is recommended that the competent authority formulate standards concerning equipment manufacturing and interfaces. Automated equipment manufacturers should strengthen cooperation with major electrical equipment manufacturers to provide technology-integrated products to facilitate design and operation department selection. In the future, the operation mode of substation automation will gradually shift from being on duty to being unattended. Therefore remote-sensing telemetry remote-vision technology will come into being and will develop rapidly. With the development of computer and network communication technologies, the RTU/LTU or protection monitoring unit in the station will directly access the Internet and communicate with the back office (upper computer) and workstation through the network. The elimination of the traditional pre-processor link completely eliminates the "bottleneck" of communications. For many current RTUs communicate with the host through the serial port 232/485/422, neport has taken an irreplaceable role in the networking of RTU.
The NePort sequence module has a 10M/100M Ethernet interface that can simultaneously transmit TCP/UDP packets to multiple data receiving devices. And mention
For 1-3 high-speed serial port, baud rate up to 921600bps.
â—† Ultra-small size (two-thirds of thumb size), highly integrated (CPU + MAC + PHY + isolation transformer + RJ45). Size
Fully compatible with standard RJ45 carrier
â—† High speed, high reliability (industrial standard optional)
â—† 32-bit RISC (NP7 series) ARM7TDMI 55DMIPS
â—† 128KB SRAM (EN version: 256KB SRAM), 256KB/512KB Code + 32KB Boot
â—† 10/100M adaptive Ethernet interface
â—† Provide one or three high-speed serial ports (EN version: optional three serial ports)
â—† Serial data bits 5, 6, 7, 8 can be set
â—† Serial port stop bit 1, 2 can be set
◆ Baud rate 110 – 460800bps, 110 – 921600bps (EN version)
â—† Support RS422/485 control (optional)
â—† Smart protocol family:
ETH, ARP, IP, UDP, TCP, ICMP, PING, BOOTP, AutoIP, DHCP, SNTP, POP3, SMTP, TFTP, TELNET, HTTP, (SNMP, SSH, SSL/TLS, HTTPS (EN Version Optional))
â—† Embed WEB SERVER, support user WEB customization
â—† EMAIL alarm (EN version optional)
â—† Data encryption
128-, 192-, 256-bit AES or Tri-DES encryption (optional)
â—† Work modes can be selected as TCP Server, TCP Client, UDP unicast and multicast
â—† Support Windows 95/98/ME/NT/2000/XP/2003/XP x64/2003 x64 COM driver, Linux real, TTY, UNIX operating system
â—† Working voltage is 3.14~3.6 VDC
â—† Low power consumption, current 150mA (no link 80mA)
â—† Support POE (optional)
â—† 1.5KV electromagnetic isolation
â—† All pins antistatic protection
â—† Operating temperature (optional)
:0°C to +70°C (32°F to 158°F), 5% to 95% RH (Commercial grade)
-40°C to +80°C (-40°F to 176°F), 5% to 95% RH (Industrial Grade)
â—† Storage temperature
-40°C to +80°C (-40°F to 176°F), 5% to 95% RH
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