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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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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.

== Summary ==
The Waveshare RS232/485 TO ETH converts serial RS232 and RS485 signals into Ethernet TCP/IP traffic. Configuration is done through a web interface; the default IP is 192.168.0.7 and the default port is 1111. The device supports transparent forwarding as well as Modbus RTU/TCP conversion and allows up to eight simultaneous TCP client connections.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL15729 WSAL15729 – Industrial RS232/RS485 to Ethernet Converter]
* [https://shop.jw-tech.eu/p/WSAL16530 WSAL16530 – Industrial RS232/RS485 to Ethernet Converter for EU]

== Technical overview ==
* Serial interfaces: RS232 (TXD/RXD) and RS485 (A/B) are connected in parallel and can be used simultaneously with Ethernet.
* Network connection: An RJ45 Ethernet port connects the device to a switch, router, or directly to a PC via a single network cable.
* Default network parameters: Factory IP 192.168.0.7, default subnet mask, TCP port 1111.
* Web configuration: Access the device IP in a browser; default login is admin/admin (factory value).
* TCP mode: The device can be configured as a TCP server (up to 8 clients) or as a TCP client; set the remote party IP and port accordingly.
* AT command mode: Sending “++++” without preceding data activates the mode; confirmation is sent back as 'a', followed by “+OK”. To exit, send “AT+ENTM”.
* Modbus conversion: Supports bidirectional conversion between Modbus TCP and Modbus RTU; the serial baud rate must match the connected unit (commonly 9600 or 115200).
* Termination: A jumper enables a 120 Ω termination resistor for the RS485 line; correct wiring is T+ → A, T- → B.
* Troubleshooting: If no data is received, check the RX indicator, compare serial parameters, and restart the device if needed; for network issues verify IP/ping and firewall settings.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
AT+ENTM
</syntaxhighlight>

== Notes and version constraints ==
* The exact subnet mask and gateway depend on the local network plan and must be adjusted manually.
* Modbus conversion requires additional gateway hardware or software; correct configuration requires protocol knowledge.
* If the web interface is unreachable, IP addresses must be in the same subnet but with different node addresses (e.g., device 192.168.0.7, PC 192.168.0.8).
* Firewall settings on the host may block TCP connections; SSCOM or debugging software must be added to firewall exceptions.
* The exact AT commands other than “AT+ENTM” are not fully listed in the source; further commands require consulting the manufacturer.
* Restart after network failures can be automated but requires custom monitoring logic; the source only mentions a manual restart as an immediate measure.

== Source and revision record ==
* [https://www.waveshare.com/wiki/RS232/485_TO_ETH RS232/485 TO ETH - Waveshare Wiki]
* Source revision: 96011
* Captured: 2026-08-31T02:57:13+00:00
* SHA-256: <code>f4638477dd6950e866a5b1da4583cb3a4c826cb9f15dc6b132252213c29a0c05</code>

WSAL15729 – RS232 – 485 TO ETH/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex