Serial commands - HMD110 - HMD112 - HMS110 - HMS112 - HMW110 - HMW112 - TMD110 - TMI110 - TMW110

HMDW110 with TMI110 User Guide

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User guide

The notation <cr> 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 <cr> 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.

Table 1. HMDW110 serial commands
Command Description
Device information and status
? Show device information.
?? Show device information (will respond in poll mode).
errs Show active errors.
help Show list of serial commands.
system Show firmware information.
time Show transmitter uptime (time since last reset).
Serial line output and communication
addr Show or set device address.
close Close connection to device in POLL mode.
form Set output format of measurement messages.
intv Set measurement output interval.
open Open connection to device in POLL mode.
r Start continuous output of measurement messages.
s Stop continuous output of measurement messages.
sdelay Show or set serial line turnaround delay.
send Output one measurement message.
seri Set serial line settings. Default is 19200 N 8 1.
smode Set serial line operation mode.
unit Set units to metric (m) or non-metric (n).
Analog output
aerr Show or set error level for analog output.
amode Show analog output settings.
aover Enable or disable analog output 10% over range.
asel Show or set analog output parameters and scaling.
Calibration and adjustment
cdate Show or set adjustment date.
crh User calibration for humidity measurement.
crhclr Clear user calibration for humidity measurement. Factory calibration remains.
ct User calibration for T measurement.
ctclr Clear user calibration for temperature measurement. Factory calibration remains.
ctext Show or set adjustment information text.
fcrh Two-point calibration after humidity sensor change.
l Show adjustment offset and gain.
li Set adjustment offset and gain.
Other commands
filt Show or set measurement filtering.
frestore Restore factory settings. Clears all user settings, factory calibration remains.
reset Reset the device.