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Modbus gateway · 1 DIN module
BTR102
Connects your instruments' RS485 bus to the network: a PLC or SCADA reads every Modbus RTU slave as if it were on Modbus TCP. In the gateway versions it polls up to 20 requests, collects them in a register map and publishes them via web, MQTT and LoRa.
- Transparent bridgeEvery Modbus TCP request on port 502 is forwarded to the RTU bus.
- Up to 20 requestsTo RTU slaves on RS485 or TCP slaves on Ethernet, Wi-Fi STA and Wi-Fi AP.
- Ethernet and Wi-FiRJ45 10/100, Wi-Fi client and access point for configuration.
- SD and USB loggingBGM and BGML versions: CSV files, immediate or scheduled start. Firmware update from a USB stick.
- Display and touch keyInterface status at a glance, physical credential reset.
- SecurityHTTPS with TLS certificates, two access roles, Modbus TCP allowlist, security log.
Four versions, one hardware.
Choose according to what the device has to do: TCP ↔ RTU bridge only, gateway with data collection, cloud upload, LoRa communication.
| Function | BTR102.BBridge | BTR102.BGGateway | BTR102.BGMGateway + MQTT | BTR102.BGMLGateway + MQTT + LoRa |
|---|---|---|---|---|
| Transparent Modbus TCP ↔ RTU bridge | ||||
| Gateway: table of up to 20 RTU/TCP requests and register map | — | |||
| Cloud connection via MQTT | — | — | ||
| SD/USB logging, HTTPS API | — | — | ||
| LoRa expansion | — | — | — | |
| Order code | BTR102.B | BTR102.BG | BTR102.BGM | BTR102.BGML |
| Interfaces | |
|---|---|
| Ethernet | RJ45 10/100 Mb/s, static IP or DHCP |
| WiFi | Station (client) and access point |
| Modbus RTU | RS485, up to 256 nodes, 3-pole terminal, 3.5 mm pitch |
| Modbus TCP | Server, configurable port (default 502) |
| Storage | microSD and USB stick, FAT32 |
| Front panel | TFT display, capacitive key |
| Specifications | |
|---|---|
| Power supply | 10–36 Vdc, 2-pole terminal, 3.5 mm pitch |
| Maximum consumption | 1,6 W |
| RS485 common-mode voltage | 60 Vdc |
| Operating temperature | −20 … +60 °C |
| Humidity | max 95%, non-condensing |
| Form factor | 1 DIN module |
Diagram: all BTR102 communication paths
Contact
Talk directly to the people who design.
No call centre: your request goes to an engineer in our technical department.
- Non-disclosure agreement (NDA) before discussing your project
- EMT and sensor samples for evaluation on request
Phone +39 049 227 4996
Operating office Via Ceresina 11/E, Selvazzano Dentro (PD), Italy