System information
REV 4.0.
8
Fig.2.1
2.6. Command return value
Displays return command execution results with ASCII character strings. A result string consists of a
command ID number, command name and zero or more return values. A carriage return code is added
at the end of each result string. A command ID number and command name shall not be delimited. A
command name and return value should be delimited by space (20h). Multiple return values also
should be delimited by space (20h).
Command ID number is represented by two decimal digit ASCII characters. If the display responds to
a command, it will return character strings with “?”. If the display receives an undefined command, it
will return received command ID number and “?”.
When the display, which is set MASTER in dip switch, receives a command with a command ID “00”, it
will return the result string that contains the command ID number “00”.
Format: ID Command [ _ Parameter1 _ …] ¥r
Example:
Normal response 01Pmute _ 1 ¥r
01Pmute _ ?00 ¥r Received invalid parameter
01Pmute _ ?01 ¥r Received when display is not executable
01Pmute _ ?busy¥r Under start-up or shut-down process
01Pmute _ ?event¥r Received next command before finishing a command
processing.
01 _ ? ¥r Received undefined command
Response to error
01?11 ¥r In the process of flash memory writing
Note: “_” stands for space (20h) and “¥r” stands for carriage return code (0Dh).
01UP¥r
01UP¥r
01Pmute_1¥r
A
nalyzing and executing
command within 700msec.
displayExternal controller
01Pmute_1¥r
00Pmute_0¥r
Note:
“¥r” is carriage return code(0Dh).
“_” is space code
(
20h
)
.
50msec
or more
00Pmute_0¥r
00UP¥r
00UP¥r
When command ID is 00,
only MASTER display will
respond to the command.
A
nalyzing and executing
command within 700msec.