Protocol Support
Six Protocols, Compared
What each protocol is for, how it connects, and how IoTServa reads it.
The Six, Side by Side
| Protocol | Best For | Medium | Range | Data Model | IoTServa Reads It Via |
|---|---|---|---|---|---|
| BACnet | HVAC and building plant | Ethernet (BACnet/IP, BACnet/SC) or RS-485 (MS/TP) | Building and campus LAN | Objects with properties: Analog Input, Analog Value, Binary, Multi-state, Schedule, Trend Log | BACnet/IP on your LAN, or MS/TP through an RS-485 gateway |
| Modbus | Meters, drives and PLCs | RS-485 or RS-232 (RTU), Ethernet port 502 (TCP) | Plant floor and switch room | Four tables: coils, discrete inputs, input registers, holding registers | RS-485 serial or Ethernet port 502 |
| KNX | Lighting, blinds and rooms | Twisted pair (TP), KNX IP, KNX RF | One building or one floor plate | Group addresses (for example 1/2/5) carrying typed datapoints (DPT) | A KNX IP interface or router |
| MQTT | Moving data between systems | TCP and TLS (port 8883), WebSocket | Anywhere with IP reachability | Topic strings with free-form payloads, optionally Sparkplug B | Your broker, as a client |
| LoRa | Low-power sensors over distance | Sub-GHz radio to a gateway, then IP backhaul | Kilometres in open terrain, less indoors | Small uplink frames on a port, decoded by a payload decoder | Your LoRaWAN network server or gateways |
| BLE | Tags and short-range sensors | 2.4 GHz radio to a BLE gateway, then IP backhaul | Metres to tens of metres | Advertising data, or GATT services and characteristics | BLE gateways in the premises |
Which One Fits Your Site?
Find your situation and jump to the matching page.
Choosing, Answered
Which protocol should I start with?
Start with the protocol of the equipment that matters most on site. Most pilots begin with one wired protocol and one wireless one, then add the rest.
Can one project use all six protocols?
Yes. Protocols are drivers inside the same project, and every reading ends up in the same tag model.
Start With One Site. Prove It on Real Devices.
Tell us which protocols are on site. We will scope a pilot that reads your real devices.