User Guide

ViewStat Programming Protocol
25
ViewStat Communicating Thermostat - Programming Protocol Reference Guide
Text Messaging Commands
ViewStat incorporates two displays, a segmented display and a two-line, 16-character per line text
messaging display. These commands are used to control the text messaging display.
Text Messaging Support Characters
FIG. 1 shows the correspondence between character codes and character patterns.
The following command descriptions describe the use of the command when setting a particular
variable. Inquiries can be made with all commands (with the exception of the
SCUP, SCDN, BLTON
and
ENTR commands) to determine the existing value of a variable. Inquiry is done using the
following syntax:
SN [address number, or <blank> or 0 (zero) for global] "COMMAND" ?
where COMMAND is the variable whose value is desired..
FIG. 1 Text Messaging Support Characters
Higher 4-bit (D4 to D7) of character code (hexadecimal)
Lower 4-bit (D0 to D3) of character code (hexadecimal)
0 12 3 4 5 789AB C D E F6
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
CG
RAM
(1)
CG
RAM
(2)
CG
RAM
(3)
CG
RAM
(4)
CG
RAM
(5)
CG
RAM
(6)
CG
RAM
(7)
CG
RAM
(8)
CG
RAM
(1)
CG
RAM
(2)
CG
RAM
(3)
CG
RAM
(4)
CG
RAM
(5)
CG
RAM
(6)
CG
RAM
(7)
CG
RAM
(8)