Converter M-Bus-1 Receives Packets Of The Following Types; Real-Time Clock Adjustment; Query Of Readings Log; Output On Command - Vega Absolute M-BUS-1 User Manual

CONVERTER M-BUS-1 RECEIVES PACKETS OF THE FOLLOWING TYPES

1. Real-time clock adjustment

Sent by application on LoRaWAN port 4.
Size in bytes
1 byte
8 bytes

2. Query of readings log

Sent by application on LoRaWAN port 2.
Size in bytes
1 byte
1 byte
4 bytes
Upon receiving this package, the converter will perform an extraordinary polling of all
connected meters (request type = 0) and alternately send packets with current readings for
each of them or interrogate only one device by serial number (request type = 1).
Example 1:
0200 – command to poll all connected devices (no address field).
Example 2:
020000000000 – command to poll all connected devices (address field 0x00)
Example 3:
Poll the counter by the address with the number 17212760 (number in decimal format).
The command is 020158A50601, where 0x58A50601 is the number 17212760 in hexadecimal
with little endian byte order.

3. Output on command

Sent by application on LoRaWAN port 2.
Size in bytes
1 byte
1 byte
1 byte
24
Field description
Packet type, this packet == 255
The value in seconds for which you need to adjust the
time.
Can be positive or negative
Field description
Packet type, this packet == 2
Type of request ("0" - interrogate all connected meters, "1"
- interrogate the meter by serial number)
Serial number of the meter
Field description
Packet type, this packet == 3
Output no. (1 - 2)
Output on time in seconds (1 – 255, 0 – forever on).
M-BUS-1 / User Manual
Data type
uint8
int64
Data type
uint8
uint8
uint32
Data type
uint8
uint8
uint8
Revision 15 – 30 June 2021