Command interface - send_commands – AMX ViewStat User Manual

Page 53

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Using the NetLinx Module to Program the ViewStat

47

ViewStat Communicating Thermostat

cool setpoint would be set to 72. While the temperature is within this range nothing is done. Once the
temperature falls outside this range the system takes action and switches to the appropriate mode.

5.

Humidify/Dehumidify: Some systems can maintain the humidity level within a certain range. These are
similar to temperature setpoints except instead of temperature control equipment the system is controlling
humidify and dehumidify equipment.

Command Interface - SEND_COMMANDs

Various system wide operations may be performed by the NetLinx program via SEND_COMMANDs sent to
the virtual device controlling the thermostats.

The supported commands are listed below.

Command Interface - SEND_COMMANDs

Command Description

'T-<tstat> COOL-<val>'

Set cool set point.

Parameters:

• <tstat> : id of thermostat/zone

• <val>:

+ = increase cool set point by one degree

- = Decrease cool set point by one degree

60-108 = new cool set point (F)

Examples:

'T-4 COOL--'

'T-1 COOL-76'

'T-<stat> COOL?'

Query for current cool set point.

Parameter:

• <tstat>: id of thermostat/zone

Example:

'T-16 COOL?'

'T-<tstat> DATE-<val>'

Set date.

Parameters:

• <tstat> : id of thermostat/zone

• <val> : MMDDYY

Example:

'T-1 DATE-030894'

'T-<tstat> DATE?'

Requests current date on thermostat

'T-<tstat> DEHUMIDIFY-<val>'

Set dehumidify set point.

Parameters:

<tstat> : id of thermostat/zone

<val>:

+ = Increase dehumidify set point by one percent

- = Decrease dehumidify set point by one percent

10-90 = dehumidify set point (in percent)

Example:

'T-6 DEHUMIDIFY-70'

'T-<stat> DEHUMIDIFY?'

Query for current dehumidify set point.

Parameter:

• <tstat> : id of thermostat/zone

Example:

'T-1 DEHUMIDIFY?'

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