A-4. CL-204-E DCON Command Sets
Command
$AAF
$AAI
$AAM
$AAP
$AAPN
$AA2
$AA5
#AA
#AAN
%AANNTTCCFF
@AABA
@AABAHH
A-4. CL-204-E DCON Command Sets
Description
read firmware version
read INIT status
response:
!AA0 -> INIT short to GND
!AA1 -> else
read module name
Read Modbus RTU/DCON protocol
response:
!AA0 -> DCON
!AA1 -> Modbus RTU
Set Modbus RTU/DCON protocol
N-> 0: DCON, 1: Modbus RTU
read configuration
read reset status
!AA1 first after power on, !AA0 others
Read All Analog Inputs
response
>(HCHO in 1 ppb) (TVOC in 1 ppb) (relative humidity in
0.01%)(temperature in 0.01°C)(temperature in 0.01°F) (dew
point temperature in 0.01°C)(dew point temperature in
0.01°F)
Read Channel Analog Input
N = 0 for HCHO in 1 ppb, 1 for TVOC in 1 ppb, 2 for relative
humidity in 0.01%, 3 for temperature in 0.01°C, 4 for temperature in
0.01°F, 5 for dew point temperature in 0.01°C, 6 for dew point
temperature in 0.01°F
set configuration, NN: new address, TT = 00, CC: new baud rate
FF: data format
Read beep on alarm time
response
!AAHH, HH in hex, 0: disabled, 1 ~ 250: beep on alarm
time in seconds, 251: beep on alarm continuously
Set beep on alarm time
HH in hex, 0: disabled, 1 ~ 250: beep on alarm time in seconds,
251: beep on alarm continuously
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