Changelog

app-hybrid-modbus – Modbus over various WAN technologies.

This changelog's format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Planned features

• Execute Modbus Commands per LTE-Downlink
• Modbus TCP
• LAN connection to backend (over ethernet, dinrail only)

0.3.1

Changed

• Increase size usable for config (allow for much bigger config/longer modbus commands).
• Verify on boot that secure firmware is of sufficient version.

0.3.0

Added

• DNS and DTLS support for NB-IoT/LTE-M.
• Revert temporary config (from remote command), if backend cannot be reached.
• Revert temporary firmware (from remote update), if backend cannot be reached.
• Add virtual internal modbus device to bridge, that can be addressed to read internal values (current time, internal modem temperature, current voltage) on address 0xfa=250 (configurable).
• New config parameter InternalAddress.
• Add Lost Reboot feature for LoRaWAN that resets device if LoRaWAN is network connection is lost.
• New config parameter LostReboot.
• (battery only) Add config parameter ExternalAntenna to support use of external antenna.
• Feedback for power on self test of modbus commands.

Changed

• (battery only) Adjust power-off-setting for new addon to avoid leakage.
• Config parameter Host now supports optional protocol prefixes coap:// and coaps://.
• Set default host configuration to coaps://platform.lobaro.com.
• Add voltage and temperature to LoRaWAN status message.

0.2.1 - 2022-02-14

Added

• Support for LoRaWAN Class C.
• New Config Parameter OpMode for selecting Class A or Class C operation mode for LoRaWAN.
• Add Lost-Network feature for LTE.

Fixed

• Removed double status message uplink on boot for LoRaWAN.

0.2.0

Added

• Support for battery powered hardware variant, using mikrobus-rs485-var nrf-addon-rs485-VBat-rev1.
• (Battery only) Add config parameter PowerOnDelay for letting attached slaves power up.

0.1.5

Added

• Allow 8E1 in UART config.

0.1.4 - pre-release 2021-11-23

Added

• Add additional compact LoRaWAN payload formats known from the LoRaWAN Bridge device.
• Add config parameters PlFmt, PlMax, PlId for controlling the LoRaWAN payload format.

Fixed

• A timing issue could lead to the dialog mode not working properly.

0.1.3 - pre-release 2021-11-17

Added

• Interactive Dialog Mode for testing setups.
• LED feedback about state of Modbus and WAN connections.
• Execute Modbus Commands remotely via LoRaWAN Downlink.

0.1.2 - pre-release 2021-11-15

• This is a pre-release! It is neither complete nor fully tested!

Added

• Support for NB-IoT, LTE-M, and LoRaWAN.
• Downlinks for remote config (all WAN technologies) and firmware updates (NB-IoT and LTE-M only)

Dependencies

• Boot Firmware >=1.7.1
• Modem Firmware >=1.2.0

0.1.0 - 2021-07-02

Added

• Start new app for Hybrid NB-IoT/LoRaWAN Modbus Gateway.