STANDARD SERIAL COMMUNICATION INTERFACE and ...

Standard Serial Interface Protocol Description
# (Field 4) (Field #5) (Field #6)
# Cmd.
Designation
Content
Byte
Count
Typical Content Byte
Count
% 1 "A" “Sign Row 1, Msg 1
Text” EOT “Sign Row
2, Msg 1 Text”
% 2 "B" “Sign Row 1, Msg 2
Text” EOT “Sign Row
2, Msg 2 Text”
% 3 "C" “Sign Row 1, Msg 3
Text” EOT “Sign Row
3, Msg 2 Text”
% 4 "D" “Sign Row 1, Msg 4
Text”, EOT DC1 DC3
“Sign Row 2, Msg 4 Text”
DC3 DC1
% 5 "E" “Sign Row 1, Msg 5
Text” EOT DC1 “Sign
Row 2, Msg 5 Text” DC1
% 6 "F" “Sign Row 1, Msg 6
Text”, EOT DC3 “Sign
Row 2, Msg 6 Text”
DC3
% 7 "G" “Sign Row 1, Msg 7
Text” EOT DC1 “Sign
Row 2, Msg 7 Text” DC1
Variable
(320 Max)
Variable
(320 Max)
Variable
(320 Max)
Variable
(320 Max)
Variable
(320 Max)
Variable
(320 Max)
Variable
(320 Max)
% 8 "H" (8-23) 1 “Sign Row 1,
Msg 8-23 Text”,
EOT DC3 “Sign
Row 2, Msg 8-23
Text” DC3 ETX
Message Description
ETX 1 Load Text-based Sign message
#1 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#2 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#3 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#4 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#5 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#6 into memory, and display on
sign.
ETX 1 Load Text-based Sign message
#7 into memory, and display on
sign.
Variable
(320
Max)
Load Text-based Sign message
#8, 9, .. or 23 into memory, and
display on sign.
% 9 "I" N/A 0 N/A 0 Toggle the sense of image
generation.
10 "P" Duration (Hex) 1 N/A 0 Set Pause Duration between
image writes, in 0.1 second
increments (25.5 sec. Duration
maximum).
11 "O” N/A 0 N/A 0 Output ChLCD Temperature from
Sign. Host will receive a 4 byte
message f/sign after positive
response is received.
12 "R” N/A 0 N/A 0 Reset Sign (Clears any data
previously entered into the sign
RAM).
13 "S" N/A 0 N/A 0 Stop Automatic Message Cycling
(Overrides any previous "t"
command)
%
14
"T" ,
2 ,
Table 5.3.1A: Available Host Computer QUAD Application Layer Commands
4 Start Automatic Message Cycling
for messages indicated, the
specified image sense, and the
amount of cycles specified (all #’s
in hex)
Standard Serial Communication Interface Description, © 1998-2002 Kent Displays Inc., doc. # 25016 Revision T, Page 17 of 52