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.

Planed features

• Execute Modbus Commands per LTE-Downlink
• Modbus TCP (dinrail only)
• LAN connection to backend (over ethernet, dinrail only)
• "auto" wan feature.
• Enhanced dialog mode.

0.7.0 - 2022-09-08

Added

• Support collection and upload of wMBus telegrams.

Changed

• Update nordic modem lib to v2.1.3
• Enhanced uplink retries and dial-up logic.
• Use high precision clock when communicating via Modbus. This will make communication consistently work with devices that communicate far outside the proclaimed Baud rate.
• Use language standards C17 and C++20.

0.6.1 - 2022-08-22

Fixed

• Execute confirmation of Firmware and Config change in all configurations.

0.6.0 - 2022-08-18

Changed

• breaking: Changed LTE-Uplink format for supporting batch uploads. Individual readouts for all supported data uplink types (modbus, mbus, wmbus) are groups in a cbor-array, that is sent under the key batch.
• Change LTE dial-up logic and uplink logic, to work better with Firmware concept.

Added

• Retries (potentially with reconnect) for each Uplink on upload failure.
• Retry/reconnect during FW update, when connection breaks.
• Multiple config-parameters added, that will be used for wireless M-Bus support (wMBus mode is still WIP and experimental - parameter names might change in the future).

Fixed

• Adopt remote config when using LoRaWAN.
• Check for Duty-Cycle for each individual Uplink before uploading for remote command responses (did lead to reboots in certain situations).

0.5.1 - 2022-05-06

Changed

• Adjust to changes in Modem driver.
• Adjust to new modem firmware version.

Fixed

• Fix Modbus with UART 7E1 (was not working in previous version).

0.5.0 - 2022-04-19 prerelease

Added

• Support wired MBus readout (REQ_UD2) via RS-485 (needs adapter hardware).
• New Config Parameter MbusCmd.
• Autodetect feature for discovering wired MBus-Slaves.
• New uplink types mbus and mbus-scan.
• Caching of Operator/Band LTE parameters after first connection (if not set explicitly).
• Autodetect APN when using special value * for APN config parameter (currently working for 1nce cards only).

Changed

• LTE Modbus uplinks are now identified in envelope by "q":"modbus" (was: no "q" entry).

0.4.0 - 2022-03-17

Changed

• Change LTE upload format to put Modbus Commands/Responses of a single entry in the same uplink as array (up to 10kB).

0.3.1 - 2022-03-16

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 - 2022-03-11

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.