Axlink Commands; External_Temp; Filter - AMX ENV-VST-C Instruction Manual

AxLink Commands

This section contains AxLink commands that are specific to the ViewStat Color Thermostat. For additional AxLink programming
commands specific to a particular AxLink device, consult the manual for the AxLink device you are using.
AxLink Commands
BK
CD
CF
?EXTERNAL_
TEMP

FILTER

?FILTER
ENV-VST-C - Instruction Manual
Sets the backlight timeout value and active and inactive brightness.
Syntax:
BK [T<SEC>] [A<ABVAL>] [I<IBVAL>]
Variables:
SEC = An integer with a value between 10 and 300 in values evenly divisible by 10.
ABVAL = A single character with a value of L, M, or H, where L=Low, M=Medium, and H=High
IBVAL = A single character with a value of D or O, where D=Dim and O=Off
Example:
SEND_COMMAND 'BK T20 IO'
Sets the timeout to 20 seconds and Inactive Brightness to OFF.
SEND_COMMAND 'BK T10 AL'
Sets the timeout to 10 seconds and Active Brightness to ON.
Retrieves and sets the security code configuration.
Syntax:
CD <Code>
Variable:
Code = A 4-character integer.
Example:
SEND_COMMAND 'CD 1988'
Changes the security code to 1988.
Displays the current forecast.
Syntax:
CF F<Temp> W<Direct> S<Speed> H<HRead> D<DewPT>
Variables:
Temp = The wind chill or heat index that denotes what the temperature feels like outside. The temperature is reported
in the same scale as set on the thermostat: Fahrenheit (F) or Celsius (C).
Direct = A single character noting the wind direction (N, S, E, or W).
Speed = The wind speed in either miles per hour (mph) or kilometers per hour (kph), depending on the temperature
scale.
HRead = The current percent humidity reading with a range of 0 to 100%.
DewPT = The current dew point temperature reported in the same scale as set on the thermostat: F or C.
Example:
SEND_COMMAND 'CF F40 WN S25 H35 D55'
Reports the forecast as Wind Chill: 40F, Wind Direction: North, Wind Speed: 25 mph, Humidity: 35%, Dew Point: 55F.
Queries for the temperature measured by the external sensor. If the external temperature sensor is set to Off, the
response reports OFF.
Syntax:

?EXTERNAL_TEMP

Example:
SEND_COMMAND '?EXTERNAL_TEMP'
Set the number of days for a filter reminder.
Syntax:
FILTER <days>
Variable:
days = The number of days until the filter change reminder activates. The range is from 0 to 180.
Example:
SEND_COMMAND 'FILTER 30'
Queries the number of days before the filter reminder turns on.
Syntax:
?FILTER
Example:
SEND_COMMAND '?FILTER'
Programming
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