Operation Guide

1Accessing the Web Interface

Open a web browser and navigate to the device's IP address (e.g. http://10.248.116.199). The device responds with a login page.

1. Open a web browser on a device connected to the same network as the SM5000.
2. Enter the device's IP address in the address bar (e.g. http://10.248.116.199).
3. Enter the username and password then click Login.
4. On success the browser redirects to the main page.

2Main Page

After logging in the operator arrives at the main page - the central hub of the SM5000 web interface. All device status and every configurable setting are on a single scrollable page divided into five sections.

The System Status panel is read-only and auto-refreshes every 60 seconds. It provides a real-time snapshot of device health - firmware version, IP address, uptime, free memory, and current MQTT and Modbus connection states.

Current temperature and humidity from Sensor Front and Sensor Rear. The Calibration row shows whether a reference sensor is connected. Per-sensor offsets can be entered and saved directly.

1. In the Calibration Information table, enter the offset value for Sensor Front or Sensor Rear.
2. Click Save Offsets. A browser popup confirms: “✅ Calibration saved!” - no reboot required.
3. To remove all offsets, click Reset to Zero.

Switch between Static IP and DHCP modes and set all network parameters. Each unit must be assigned a unique IP address here. Saving reboots the device to apply the new settings.

1. Scroll to Network Configuration on the main page.
2. Select Static IP or DHCP.
3. If Static IP: enter the IP Address, Subnet, Gateway, and DNS.
4. Click Save & Reboot. The device displays a confirmation page then reboots within 10 seconds.
5. The browser redirects to the new IP address automatically.

Broker connection and the 7-level topic hierarchy. The device name is also set here. The device name and hierarchy must be verified or updated by the commissioner during deployment. The topic preview updates live and prevents saving if the total exceeds 50 characters.

1. Check or uncheck Enable MQTT as required.
2. Enter the broker IP address - this must match the SyncFM host IP.
3. Update the port if it differs from the default (1883).
4. Enter username and password only if broker authentication is required.

1. Select the correct Country and City from the dropdowns.
2. Enter Datacentre, Building, Floor, and Datahall as agreed during pre-shipment consultation.
3. Enter the unique Device Name for this unit (e.g. HAY.05.22K).
4. Verify the Topic Preview is correct and does not exceed 50 characters.
5. Click Save MQTT Settings. The device reboots to apply changes.

Enable or disable the Modbus TCP server. When enabled the device exposes sensor data on port 502 via 9 holding registers accessible by any Modbus-compatible BMS or SCADA system.

1. Scroll to Modbus Settings at the bottom of the main page.
2. Check Enable Modbus TCP Server to enable, or uncheck to disable.
3. Click Save Modbus Settings. The device reboots and redirects back to the main page - there is no separate confirmation screen.

3Time Page

Accessible via the ⏱ Time link in the navigation bar. Allows viewing the current synchronisation status, selecting the time source, configuring the NTP server, and setting a fallback default time.

The Current Time Status table shows the device's real-time sync state. There are four possible states.

Switch between Fleet Manager, NTP, and Disabled modes. If NTP is selected, the NTP server address can be updated here. Clicking Apply reboots the device.

1. Navigate to the Time page using the ⏱ Time link.
2. Select NTP, Fleet Manager, or Disabled.
3. If NTP is selected, update the NTP Server address if required.
4. Click Apply Time Source. The device reboots to apply the change.

The Default Time is a fallback timestamp the device uses when it boots and no time source is available within the 5-minute timeout. Setting this to a recent date ensures data log timestamps are in the correct date range even if SyncFM is temporarily unreachable at boot.

1. Navigate to the Time page and scroll to Default Time (Fallback).
2. Enter the desired Date and Time.
3. Select the correct Timezone from the dropdown.
4. Verify the Preview shows the expected Unix timestamp and UTC time.
5. Click Save Default Time & Restart. The device reboots and stores the value in NVS.

4Data Logger

Accessible via the 📖 Data Logger link in the navigation bar. Provides access to stored sensor history, data export tools, and 24-hour trend charts.

The SM5000 logs sensor readings every minute and stores up to 10,080 data points - exactly one full week of data. When capacity is reached, the oldest entries are overwritten in a circular buffer.

Below the export section, the Data Logger page renders live temperature and humidity charts covering the last 24 hours of logged data.

5Settings Page

Accessible via the ⚙ Settings link in the navigation bar. Provides a consolidated view of all stored configuration values, the live Modbus register map, authentication management, and the factory reset function.

A read-only snapshot of all values currently written to NVS. Allows the operator to verify the active configuration - network mode, device name, MQTT broker, auth username, and connection states - at a glance. The password field is always masked.

The Modbus Register Map table shows all 9 holding registers with their current live values. The Device Status decode table beneath it translates the Register 40005 bitfield into human-readable system states, helping diagnose issues without requiring a separate Modbus client tool.

Device Status Examples (Register 40005)

Allows updating the web interface username and password. Minimum password length is 6 characters. Saving immediately terminates the current session - the operator must log in again with the new credentials.

1. Navigate to the Settings page and scroll to Authentication Management.
2. Enter the new username and password (minimum 6 characters).
3. Confirm the password in the Confirm Password field.
4. Click Update Authentication Credentials and confirm the prompt.
5. The session is immediately terminated and the browser redirects to the login page after 5 seconds.
6. Log in with the new credentials to resume access.

Erases all stored preferences and restores the device to the configuration embedded in the currently installed firmware - including the default IP address, device name, MQTT settings, and credentials.

1. Navigate to the Settings page and scroll to the bottom.
2. Check: “I understand this will erase all settings”.
3. Click 🔴 FACTORY RESET DEVICE.
4. Two confirmation dialogs appear in sequence - click OK on both to proceed.
5. The device clears all preferences, displays the factory reset sequence on the LCD, and reboots.

6Logout

Clicking the 🔒 Logout link in the navigation bar terminates the current session and redirects to the login page. The device automatically redirects after 3 seconds, or the operator can click Login Again immediately.

7Device Preferences

All configuration changes made through the web interface are written to the SM5000's non-volatile storage (NVS) - a dedicated flash partition independent of the firmware partition. Every setting listed below will survive a power cycle and will not be overwritten by an OTA firmware update. Only a factory reset clears these values.