RAP Systems
Manufactured by Lawnswood Technology Limited
Lawnswood Technology

Quick Start Guide

Intelligent HART Gateway
(HG1v4)
Download printable PDF

No documentation or software is shipped with the product — everything is on the device itself. Updates download automatically when the device has internet access.

Getting started

  1. To get started you will need a 24 V DC power supply and an Ethernet RJ45 cable.
  2. Connect the power supply as shown on the connection diagram on the side of the module.
  3. Connect the Ethernet cable between the module and your PC, or to your network switch.
  4. Network: by default the device uses DHCP, with a fixed link-local fallback at 169.254.100.1.
    On a managed LAN (router/switch with DHCP) — the device picks up an IP automatically. Find it via your router's connected-clients list, or by using the HG1Discover utility on the support site. Direct PC connection — set your PC's network adapter to obtain an IP automatically and browse to http://169.254.100.1. The device is always reachable on this address regardless of DHCP state.
  5. Apply power (if not already energised) and wait for the RUN LED on the front panel to come on solid.
  6. Open a web browser and connect to the device home page (the DHCP-assigned address, or http://169.254.100.1).
  7. Use the on-device Help menu and Downloads button to access the user guide.
  8. Visit our support site at support.lawnswoodtechnology.com to download PC software (HG1Discover, HG1VspManager) and additional documentation.
  9. For further assistance, raise a support ticket at support.lawnswoodtechnology.com. Quote the serial number printed on the label on the side of the module.
LED indicators (front panel)
PWR
Solid24 V supply present.
OffNo supply detected — check wiring and the 24 V source.
RUN
SolidFirmware running normally (10–15 s after power-up).
Off after 30 sFirmware not running — power-cycle once; if it persists, raise a support ticket.
BlinkingStart-up failure detected — raise a support ticket.

Remote access via lwtdevices.cloud is available — enable it from the device's Settings page once you're logged in.