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Serial network command and variable list
Refer to the Serial Communications Protocol Manual 150-00225 for format details.
Network commands
Table 3 shows the network commands and a description of each command.
Table 3. Network commands
Command Description
BF Set setback flag
CFM Set F or C temperature mode
Date Set date
DL Set display lock
DOW Set day of week
F Set fan mode
M Set system mode
OT Set outside air temperature data (for network supplied OT)
SC Set schedule control run/hold mode
SEd/x Set schedule entry for day and entry
SP Set setpoint (for single setpoint system)
SPC Set cool setpoint
SPH Set heat setpoint
SVx Set variable number x
Time Set time
R=1 Request status message 1: Thermostat data (temperature, setpoints, modes)
R=2 Request status message 2: HVAC operation data (heating/cooling/fan status)
R=3 Request status message 3: Temperature data only
R=4 Request status message 4: Setpoint data only
R=5 Request status message 5: Mode data only
R=6 Request status message 6: WDU/Control unit model/version data
R=7 Request status message 7: Time and DOW
R=8 Request status message 8: Not used
R=9 Request status message 9: HVAC system setup data (SW1 settings)