Protocols Serial (RS-232 / RS-485)

Industrial & building

Does Nodlyn support Serial (RS-232 / RS-485)?

Talk to meters, sensors, and legacy gear on COM / tty ports.

Auto-discovery

Compatibility answer

Yes — at the protocol level. Nodlyn can discover Serial (RS-232 / RS-485) endpoints and register them for visual workflows.

Discovery can list serial ports (filter by COM / ttyUSB / ttyACM).

What Serial (RS-232 / RS-485) support means in Nodlyn

RS-232 / RS-485 still connects meters, lab instruments, and Modbus RTU adapters. Discovery lists COM / ttyUSB / ttyACM ports; you set baud and frame parsing, then forward values to MQTT, HTTP, or a database.

For pure Modbus TCP on Ethernet, prefer the Modbus page. Serial is the compatibility path when the wire is a COM port.

This page is a compatibility check (supported or not, how you connect). Step-by-step tutorials live on the blog when linked below — so Google (and readers) get one clear “how-to” URL.

Example automations with Serial (RS-232 / RS-485)

  • Meter frame → parse → log
  • RS-485 adapter → Modbus-like fields
  • COM instrument → MQTT forward

Quick start for Serial (RS-232 / RS-485)

  1. Open Discovery → Advanced → Serial, or add Serial nodes.
  2. Pick the port and baud settings from your device manual.
  3. Parse frames into fields.
  4. Log, alert, or forward over MQTT/HTTP.

Brands people ask about for Serial (RS-232 / RS-485)

Curated examples — not an exhaustive SKU database. Same protocol family usually wires the same way. Missing model? Request confirmation on /protocols.

  • Modbus RTU adapters
  • Lab / meter serial devices

Can Nodlyn auto-discover Serial (RS-232 / RS-485) devices?

Yes. Discovery can list serial ports (filter by COM / ttyUSB / ttyACM). You can also add endpoints manually if discovery is empty.

In-depth Serial (RS-232 / RS-485) guide (blog)

For configuration details, examples, and troubleshooting, use the long-form guide — that URL is the primary “how to” page: RS232/RS485 Serial Devices.

Related protocols

Try Serial (RS-232 / RS-485) on your LAN

Download the free desktop beta, sign in with your free account, and open Discovery.

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