AMX VST Instruction Manual page 31

Text Messaging Commands (Cont.)
Command
TIME
Text Messaging Display - Time
ViewStat Communicating Thermostat - Programming Protocol Reference Guide
Description
The ViewStat has a counter and can maintain a clock, once set, with rea-
sonable accuracy over a 24 hour period. Therefore it is necessary to send
ViewStat the current Date and Time from the automation system at least
once per day. Each variable, Time and Date, has its own command.
Time is sent as a four digit integer with 0000 corresponding to midnight,
and 2359 corresponding to 11:59 p.m. (i.e. Military time). Noon is "1200".
Time values with less than four digits or higher in value than 2359 will be
seen as an error and the command will not be carried out. For example
the command SN1 TIME = 0631 will result in the display reading "6:31
am". The counter will maintain the clock to within one minute over a 24-
hour period.
It is important to update the time value at least once per day.
If a Time value has been sent to the thermostat, it will be displayed in addi-
tion to the four Rotating Message Display messages (see PMES1-PMES4)
as a fifth message. It will be shown as the bottom line of the two-line text
messaging display. Should there not be a Time value, only the four Rotat-
ing Message Display messages will be displayed.
Syntax:
SN[address] TIME=HHMM
Variables:
• HH = 01-23
• MM = 00-59
Reply Format:
SN[address number] TIME=HHMM
ViewStat Programming Protocol
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