Vaisala HMDW110 - Manual (Page 26)

Serial Commands
The notation refers to the carriage return control character, which you can
send in a terminal application by pressing enter on your keyboard. Before
entering commands, send a to clear the command buffer.
You can enter the commands in uppercase or lowercase. In the command
examples, the keyboard input by the user is in bold type.
Command Description Page
Device information and status
? Show device information. 25
?? Show device information (will respond in poll mode). 25
errs Show active errors. 26
help Show list of serial commands. 27
system Show firmware information. 27
time Show transmitter uptime (time since last reset). 28
Serial line output and communication
addr Show or set device address. 31
close Close connection to device in POLL mode. 31
form Set output format of measurement messages. 30
intv Set measurement output interval. 29
open Open connection to device in POLL mode. 31
r Start continuous output of measurement messages. 28
s Stop continuous output of measurement messages. 29
sdelay Show or set serial line turnaround delay. 32
send Output one measurement message. 28
seri Set serial line settings. Default is 19200 N 8 1. 32
smode Set serial line operation mode. 33
unit Set units to metric (m) or non-metric (n). 29
Analog output
aerr Show or set error level for analog output. 33
amode Show analog output settings. 34
aover Enable or disable analog output 10% over range. 34
asel Show or set analog output parameters and scaling. 35
atest Test analog outputs by forcing them to a given value. 36
Calibration and adjustment
crh User calibration for humidity measurement. 36
Table 4 HMDW110 Serial Commands
24
4 Service Port