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CONCERNED PRODUCTS

<aside> 💡 The following products already contain this FW version: • ARF8240AAC: MODBUS LoRaWAN EU863-870 • ARF8240CAC: MODBUS Sigfox RC1

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SUMMARY

This version adds some important features: • It is now possible to have up to 6 different periodical frames. User configures now in which frames he wants to retrieve the MODBUS slave content. These periodical frames may also have different sending periods that allows to cover several user needs. • It is now possible to manage up to 20 periodical data (10 previously) • Add LoRa class C support • New downlink commands that allow to read or write in registers of a MODBUS slave • Add new AT commands and so new function in the IoT Configurator to test MODBUS communication • LED indicators to help during installation of the product

CHANGES COMPARED WITH FW APP VERSION 1.2.9 (8240AAC AND 8240CAC)

1.1 In general

Add LoRa class C support • Add a new AT commands to test MODBUS communication • Improve compatibility with slaves that are not fully compliant with MODBUS timings • Light indicators (Green/Red) displayed depending if MODBUS bus is correctly or not correctly connected • External power supply is now OFF by default

1.2 Registers

• S300 and S301 have now a granularity of 10 seconds (20 seconds before) • S322 is now on 16 bits allowing supply time of external load up to 6553 seconds (25 seconds before) • New registers S323 to S327 for additional transmit periods • New S329 that configures an optional alarm repetition period • Bits <7:5> of S330 to S349 determines in which periodic frames corresponding data are sent. • Possibility to choose “Word Swap” (bits <6:4>) in S350, S355, S360, S365... in alarm configuration registers

1.3 Uplinks

• Product configuration frame (0x10) has a payload which is slightly different as S300 register is now on 16 bits • New additional periodic frames (0x5F, 0x60, 0x61, 0x62 and 0x63) with a specific transmit period for each • Alarm frame (0x45) has a payload which is slightly different as it contains now in byte 2 a specific alarm status that ease decoding this event. • New uplink “READ MODBUS registers response” (0x5E) sent when receiving downlink 0x05 • New uplink “WRITE MODBUS registers ACK” (0x2F) sent when receiving downlink 0x08

1.4 Downlinks

• New downlink 0x05 to read MODBUS registers on demand • New downlink 0x08 to write MODBUS registers on demand

READ AND WRITE WITH THE IOT CONFIGURATOR

With this new Firmware version, it is now possible to test the reading and writing into slave registers.

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