Vaisala HPP272 - Modbus Communication Examples

Address
(Decimal)
Address
(Hexadecimal)
Register Description Data
Format
Unit / Valid Range
2053 0804
hex
Scale high end 32-bit float Set the upper limit of the
measurement scale for
the output parameter
chosen in register 0801
hex
(Output parameter).
2055 0806
hex
Error output 32-bit float mA
0 ... 25
Service Agreement:
2817 0B00
hex
Customer name 24-
character
ASCII string
Read-only
2829 0B0C
hex
Contract number 24-
character
ASCII string
Read-only
2841 0B18
hex
Start date three 16-bit
integer
decimal
values
(YYYY, M,
and D)
Read-only
2844 0B1B
hex
End date three 16-bit
integer
decimal
values
(YYYY, M,
and D)
Read-only
Factory Settings:
7937 1E00
hex
Restore factory settings 16-bit
function
status
When writing to register:
1 = Restore factory
settings (cancel all
changes made by the
user)
Appendix A – Modbus Reference
53