RS485 to WiFi Converter
Industrial RS485 to WiFi Converter with native MQTT and Modbus RTU → TCP bridging. Send your field data to the cloud without pulling a single cable.
Excl. GST · Industrial pricing · Free shipping above ₹10,000
- WiFi connectivity — no cables required
- MQTT for cloud platforms (AWS, Azure, ThingConnect)
- Modbus RTU ⇄ Modbus TCP bridging
- Wide operating temperature (-40 to 75°C)
- Multi-client TCP — multiple SCADAs at once
- 2-year warranty + free tech support
How it works
How the RS485 to WiFi Converter sends Modbus data to the cloud.
Connect your Modbus RTU devices to the screw terminals. The MDIM-485/WL exposes them over WiFi as Modbus TCP and publishes register values to your MQTT broker. SCADA, cloud dashboards, and edge apps all see the same live data.
PLC / Meter
Modbus RTU
RS485
MDIM-485/WL
WiFi Bridge
WiFi · MQTT
SCADA / Cloud
TCP / MQTT
Wireless reach
Skip the conduit. Skip the trenching.
2.4 GHz 802.11 a/b/g/n radio with up to 100 m line-of-sight range. Retrofit existing buildings, monitor distributed solar farms, or relocate equipment without rerouting cables.
802.11 a/b/g/n
2.4 GHz, up to 150 Mbps
Native MQTT
AWS, Azure, ThingConnect
Up to 100 m
Line-of-sight free-space range
Multi-client TCP
SCADA + MES + historian
Built for the factory floor
Same hardened enclosure. Same -40 to 75 °C spec.
Metal housing, surge and ESD protection on the RS485 line, dual 6–24 VDC power input, 5–95% humidity tolerance. Designed to live inside the panel, not on a desk.
Wide thermal range
-40 °C to 75 °C operating
Line protection
Surge + ESD on RS485
Dual power input
6–24 VDC terminal or jack
Metal housing
160 g, 82 × 51.5 × 23 mm
MDIM Manager
WiFi credentials, MQTT broker, Modbus mapping — one tool.
Free Windows utility to set SSID, password, security mode, IP, MQTT topic, and register mappings. Web-based configuration also available on the device IP.
Where it fits
Anywhere RS485 can't reach a cable.
Industrial Automation
Wireless link from PLCs, VFDs, and controllers to SCADA — useful where pulling cable is expensive or impossible.
Building Automation
Retrofit HVAC, energy meters, and BMS controllers without disrupting operations or running new conduit.
Solar & Energy
Pull data from inverters, BMS, and energy meters across large solar farms — no field cabling required.
Water & Environmental
Wireless sensor networks for tank levels, water quality, and pump control with real-time MQTT alerts.
Transportation & Infra
Monitor traffic controllers, signaling, and tunnel ventilation across distributed infrastructure sites.
Smart Agriculture
Connect irrigation controllers, soil sensors, and greenhouse automation for mobile-friendly remote control.
Specs
Technical specifications
Communication
- WiFi Standard
- IEEE 802.11 a/b/g/n
- WiFi Band & Speed
- 2.4 GHz, 150 Mbps
- Free-Space Range
- Up to 100 m
- Cloud Protocol
- MQTT
- Serial Port
- RS-485 × 1
- Baud Rate
- 50 bps – 921.6 kbps
- Line Protection
- Surge & ESD
Electrical
- Input (Screw Terminal)
- 6 – 24 VDC
- Input (Power Jack)
- 6 – 24 VDC
- Operating Current
- 600 mA
- Power Consumption
- 3 W @ 300 mA
Physical
- Housing
- Metal
- Dimensions (L × W × H)
- 82 × 51.5 × 23 mm
- Weight
- 160.4 g
Environmental
- Operating Temperature
- -40 °C to 75 °C
- Storage Temperature
- -40 °C to 85 °C
- Ambient Humidity
- 5 – 95% RH
Resources
Datasheets, manuals & software
Datasheet (DS_MDIM485_WL)
v1.1 · Released Oct 7, 2025
User Manual (UM_MDIM485_WL)
v1.1 · Released Oct 7, 2025
MDIM Manager (Configuration App)
v1.1 · Released Oct 7, 2025
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FAQ
Questions, answered.
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Key Features:
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