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King Pigeon Communication Co., Ltd.
www.iot-solution.com
Wireless Data Acquisition System - LoRa Gateway BL280
Return Message Format
Content
Byte Qty Data Sent Remark
Command Counter
1
00 00H
Same as data sent
Command Counter
1
Fixed Character
1
00H
Fixed format, fixed character
Fixed Character
1
00H
Fixed format, fixed character
Following Message Size
1
00 04H
Same as following message byte size
Following Message Size
1
01H
Device 01, same as data sent
Device Address
1
Function Code
1
02H
Read discrete input status
Return Byte Size
1
02H
Data: 2N, N is qty of register to be inquired
Return Data
2
F0H
Every 8 bit forms 1 byte, low byte is in front
6.3 MQTT Protocol
Gateway BL280 supports standard MQTT protocol, support Modbus RTU to MQTT and can be
connected to cloud platform easily. More details can be viewed from
7 Firmware Upgrading
This device has modular design. If there’s any network upgrading from telecommunication service
provider, it’s not necessary to change the complete hardware but only communication module.
Firmware can be upgraded through USB port. If any requirement for firmware upgrading, please
contact us.
8 Warranty Term
1) This device has one year warranty from the date of purchase. Any material or manufacturing
quality problem can be repaired for free.
Any issues caused by human damage or wrong operation are beyond warranty range.
9 Technical Support
King Pigeon Communication Co., Ltd.
Tel: 0755-29451836
Website: http://www.iot-solution.com