Vaisala HMP230 - Manual (Page 100)

HMP230 SERIES
Appendix 1: Serial commands
M210225en-B
94
ADDR Setting the transmitter address
ADDR aa
aa = address (0...99)
The address is used when more than one transmitter is connected to one serial
bus. The ADDR command makes it possible to communicate with one
transmitter at a time in POLL state.
For example, transmitter is given address 99
>ADDR
Address
: 2 ? 99
When asking the current address, no address number is given:
>ADDR
Address : 2 ?
FROST Setting the calculation mode
Disconnect the security lock jumper!
FROST ON/OFF
This command is used to select whether the transmitter calculates the
frostpoint or the dewpoint (default) reading at dewpoint temperatures below
0
° C. Select FROST ON for frostpoint and FROST OFF for dewpoint
calculations. For example:
>Frost
Frost :
ON
>Frost off
Frost : OFF
>Frost on
Frost : on
>
RESET Resetting the transmitter
RESET
Resets the transmitter. All settings that have been changed stay in the memory
even after reset or power failure.