AMX VST Instruction Manual page 25

Thermostat Action Commands (Cont.)
Command
SHUM++/SHUM - -
Increment Or Decrement
Humidify Setting
SDEH
Dehumidify Control Setting
SDEH++/SDEH - -
Increment Or Decrement
Humidify Setting
ViewStat Communicating Thermostat - Programming Protocol Reference Guide
Description
These commands are used to raise (SHUM++) or lower the (SHUM--) the
humidify setting by a specified value. Should the resultant change be out
of the allowable humidify setting limits, the command will be ignored.
Syntax:
SN[address] SHUM++={value}%
or SHUM--={value}%
Reply Format:
SN[address] SHUM++={value}% or SHUM--={value}%
Connecting an optional support module, configured for humidity control, to
the ViewStat changes it from a temperature controller to a humidity con-
troller. The corresponding modes of operation are Humidify, Dehumidify,
Humidify or Dehumidify and Off. SHUM is used to set the "Humidify" control
setting. The dehumidify setting is that against which the current room
humidity is compared to control the dehumidify output of the thermostat.
Syntax:
SN[address] SDEH={value}%
Variable:
• {value}: Integer value between 10 and 90
Reply Format:
SN[address] SDEH={value}%
These commands are used to raise (SDEH++) or lower the (SDEH--) the
dehumidify setting by a specified value. Should the resultant change be
out of the allowable dehumidify setting limits, the command will be ignored.
Syntax:
SN[address] SDEH++={value}% or SDEH--={value}%
Reply Format:
SN[address] SDEH++={value}% or SDEH--={value}%
ViewStat Programming Protocol
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