12 Annex B: Modbus Reading Examples - E+E Elektronik EE240 User Manual

12 Annex B: Modbus Reading Examples

12.1 Modbus RTU, Reading a Temperature of 18.87 °C (Float 32 bit)
from Register #2
The data is encapsulated according the Modbus standard described in the Modbus Application Note
AN0103 (available at www.epluse.com/EE240), with the command line listed below to be sent for
reading the temperature at register #2 of slave ID 65 (hex 41).
41 04
Register 01, counted from 0, means register #2 (number set in the EE240 webserver)
Response if byte order is MSB first:
41 04
32
00 01 00
04 41 96
02 2E
F5 C3 49
User Manual EE240 Wireless Sensor Network
CB
51