Honeywell UDA2182 - Page 38

Parameters accessible with Function Codes 03 and 10h
30 UDA2182 Communications User Guide January 09
Example
Read Analog Variables 1 and 2 from UDA at slave address 01 using Function Code 03.
TCP:
00 03 00 00 00 04
RTU:
01 03 00 00 00 04 CRC CRC
Response from UDA where Analog Variable 1 = 100.0 and Analog Variable 2 = 55.32
TCP:
00 03 08 42 C8 00 00 42 5D 47 AE
RTU:
01 03 08 42 C8 00 00 42 5D 47 AE CRC CRC