AMX VST Instruction Manual page 33

Text Messaging Commands (Cont.)
Command
TMPMES
Text Messaging -
User Reset Message
MENU
Text Messaging -
User Interactive Mode
MSG
Text Messaging -
User Interface Message
ViewStat Communicating Thermostat - Programming Protocol Reference Guide
Description
With this command messages can be shown on the text messaging dis-
play that must be acknowledged by the user at the thermostat to reset.
Examples of this type of message might be that it is time to change a filter
or call for service. The text messaging display is a two-line, 16-character
display. The first character in the top line of the display is filled with the first
character in the text string of the command. The remainder of the charac-
ter spaces are filled across the top line and then down and across the bot-
tom line. Blanks count as characters, and if there are not 32 characters in
the message, blank spaces will be appended to the end of the message.
When the thermostat receives the command, the permanent message
sequence will be interrupted by the User Reset Message. The backlight
for the text messaging display will flash on for five seconds and off for two
seconds ten times. The message will also flash at a rate of 5 seconds on,
2 seconds off. This continues until the ENTER/HOLD button on the ther-
mostat is pressed or until a second User Reset Message is sent with no
characters in the text string. The characters in the text string are limited to
alphanumeric characters either upper or lower case.
Syntax:
SN[address] TMPMES={32 char text string}
Reply Format:
SN[address] TMPMES={Up to 32 char text string}
Normally the thermostat will display the permanent messages and user
reset message as described above - this is the passive display mode. The
user may want to use the text messaging display as an interactive device
and this command is used for this purpose. When ON, the permanent text
message sequence is stopped and User Reset messages are ignored.
The display will show the characters designated with the MSG command.
The thermostat continues to control HVAC functions during the user inter-
action with the text messaging display, and as such only the Enter, Scroll
Up and Scroll Down buttons may be used for interaction.
Syntax:
SN[address] MENU=ON or OFF
Reply Format:
SN[address number] MENU=ON or OFF
This command is ignored unless the text messaging display has been put
in the MENU mode of operation. When done, this command is used to
enter characters to the text messaging display. Messages are displayed
continually until a new message has been received or until the thermostat
is no longer in the MENU mode of operation. The text messaging display
is a two-line, 16-character display. The first character in the top line of the
display is filled with the first character in the text string of the command.
The remainder of the character spaces are filled across the top line and
then down and across the bottom line. Blanks count as characters, and if
there are not 32 characters in the message, blank spaces will be
appended to the end of the message. The characters in the text string are
limited to alphanumeric characters either upper or lower case.
Syntax:
SN[address] MSG={32 char text string}
Reply Format:
SN[address] MSG={Up to 32 char text string}
ViewStat Programming Protocol
29