DIN-rail Modbus RTU
m.Smart Universal I/O
One DIN-rail module sized for the most common water and wastewater jobs.
A single DIN-rail Modbus RTU module for tower level, master meter, pump station and lift station work. Power and Modbus arrive over the DIN-rail bus connector, six pluggable spring-cage headers carry field wiring, and eighteen front-panel LEDs make troubleshooting easy.

What’s inside.
- Power
- Bus-powered, 8–30 V DC through the DIN-rail connector
- Inputs
- 6 DI · 4 AI (0–30 V and 4–20 mA)
- Outputs
- 1 DO · 1 AO (0–10 V)
- Counters
- Total and events/minute on every DI
- Wiring
- 6 pluggable spring-cage headers, screwless
- Indicators
- 18 front-panel LEDs
How it’s secured.
- Local Modbus only; reaches the cloud through a D6 controller
Built for these sites.
Datasheets, drawings & manuals.
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