METROTEC GSM, Operating Handbook, Page: 27 / 33

METROTEC
27
Data request at protocol Modbus RTU, 8bit, 1 Stopbit, Even
Adress Function Storage adress Registers CRC 1 CRC 2
03 Byte1 Byte2 Byte1 Byte2 Byte Byte
Excample for a request at address 1 in HEX-display
Measurement value
% O
2
01 03 80 A4 00 02 AC 2B
log O
2
01 03 80 A6 00 02 0D E8
ppm O
2
01 03 80 A8 00 02 6C 2B
TP 01 03 80 AA 00 02 CD EB
O
2
red 01 03 80 AC 00 02 2D EA
Temperature 01 03 80 AE 00 02 8C 2A
Alarm 01 03 80 B0 00 02 EC 2C
All values 01 03 80 A4 00 0E AC 2D
Excample for the request:
Temperature 01 03 80 AE 00 02 8C 2A
Excample-answer = 1760,00
Temperature 01 03 04 44 DC 00 00 2F 39
4Byte Byte1 Byte2 Byte3 Byte4