https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL20978_%E2%80%93_RS485_TO_ETH_%28B%29%2FenWSAL20978 – RS485 TO ETH (B)/en - Versionsgeschichte2026-10-23T21:52:04ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL20978_%E2%80%93_RS485_TO_ETH_(B)/en&diff=2014&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:41:09Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
Technical overview of the Waveshare industrial RS485-to-Ethernet serial server: hardware connections, configuration, and test procedures.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL20978 WSAL20978 – Industrial serial server, RS485 to RJ45 Ethernet, TCP/IP to serial, rail-mount support, with POE function(optional)]<br />
* [https://shop.jw-tech.eu/p/WSAL23273 WSAL23273 – Industrial serial server, RS485 to RJ45 Ethernet, TCP/IP to serial, rail-mount support, with POE function(optional)]<br />
* [https://shop.jw-tech.eu/p/WSAL30303 WSAL30303 – Industrial serial server, RS485 to RJ45 Ethernet, TCP/IP to serial, rail-mount support, with POE function(optional)]<br />
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== Technical overview ==<br />
* Two hardware variants: RS485 TO ETH (B) uses a standard Ethernet port with 9–24 V power via terminal block; RS485 TO POE ETH (B) adds PoE, 6–36 V supply, and electrical isolation.<br />
* Connections: RS485 interface (A/B), RJ45 Ethernet port, power terminals. Serial link is made through a USB-to-RS485 adapter or direct device connection.<br />
* LED indicators: PWR shows power status. LINK glows green when a cable is connected and blue when a TCP/UDP session is established. ACT lights green for network-to-serial transmission and blue for serial-to-network return data.<br />
* Software features: TCP server (up to 30 connections), TCP client (up to 7 destination IPs), UDP multicast, DHCP, DNS, HTTP, Modbus gateway (RTU to TCP), MQTT gateway, JSON formatting, and NTP time sync.<br />
* Configuration is done via web browser or VirCom software. Virtual COM ports are created with the driver; if virtual ports are not needed, the free configuration utility suffices.<br />
* Test setup: connect a PC with a USB-to-RS485 adapter to the RS485 device, run a network cable between the server and PC/switch. Use VirCom to discover and configure the device on the same switch segment.<br />
* TCP test: configure one SSCOM window as a TCP client targeting IP 192.168.1.200 port 4196. Data is forwarded transparently between the RS485 device and the PC.<br />
* The Modbus gateway supports storage mode (automatic collection and storage) and non-storage mode. Multi-host behavior also allows several computers to query the same serial device simultaneously.<br />
* Operating conditions: temperature range -40 °C to 85 °C, humidity 5 % to 95 % relative humidity.<br />
* Suitable for industrial data acquisition, IoT gateway use cases, remote monitoring of automation PLCs, and networking access-control systems.<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
VirCom – Device Management<br />
SSCOM TCPClient: Waveshare Test<br />
SSCOM TCPClient target IP 192.168.1.200 port 4196<br />
</syntaxhighlight><br />
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== Notes and version constraints ==<br />
* The source contains no explicit command-line interface commands; the listed “commands” refer only to software dialogs from the quick-test section.<br />
* The specific IP value (192.168.1.200) is an example from the test section; actual IP depends on network configuration and must be verified on site.<br />
* PoE power is only available on the RS485 TO POE ETH (B) variant; the base variant requires an external 9–24 V power source.<br />
* Compatibility with gigabit switches is limited: the device supports 10 Mbps or 100 Mbps Ethernet; some gigabit switches may be incompatible.<br />
* All feature claims come from untrusted supplier material; critical integration steps (e.g., Modbus gateway setup, MQTT bridge) should be confirmed by a specialist.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/RS485_TO_ETH_(B) RS485 TO ETH (B) - Waveshare Wiki]<br />
* Source revision: 109931<br />
* Captured: 2026-08-29T08:13:45+00:00<br />
* SHA-256: <code>99ed3653d22e09a384af3c81ac3a647a664b02c54d20a22f8a37acf9163f0fea</code></div>JWTechPublisher