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SMART FADE™
Chapter 10 : RS-232 PROGRAMMER'S GUIDE
10-1. INTRODUCTION
If you need to use your own Software Control program from a PC or WORKSTATION with an RS-232 port, the SMART
™
FADE
allows communication through an ASCII code protocol.
™
The SMART FADE
commands. There is no starting/ending code needed in a command string.
A command can be a single character typed on a keyboard and does not require any special character before or after it. (it is
not necessary to press "ENTER" on the keyboard). A command can be preceded by a value (See chapter 10-2
COMMANDS STRUCTURE).
When the SMART FADE
parameters that have changed due to this command.
If the command cannot be executed (value out of range, no signal on the selected input), the SMART FADE
sends back the current status of the corresponding parameters.
If the command is invalid, an error response will be returned to the control device. All responses returned to the control
device end with a carriage return <CR> and a line feed <LF> signaling the end of the response character string (see chapter
10-3. ERROR RESPONSES).
10-2. COMMANDS STRUCTURE
Commands are usually composed of a numerical value followed by the command character. The characters used without
any numerical value return the current setting of the command.
COMMANDS structure = VALUE (optional) + CHARACTER.
Examples:
COMMAND
VALUE
none o
10 V
10-3. ERROR RESPONSES
When the SMART FADE
COMMAND
VALUE
none Z
70260 H
treats any character that it receives on the RS-232 as a possible command but only accepts legal
™
receives a valid command, it will execute the command. Then it will send back the status of the
CHARACTER
OSIG
VPOS10
™
receives from the control device an invalid command or value, it returns an error response:
CHARACTER
E10
E13
RESPONSE
Read the output sync type.
Set Vertical position to 10.
RESPONSE
Invalid command.
Invalid value.
Chapter 10 : RS-232 PROGRAMMER'S GUIDE
DESCRIPTION
DESCRIPTION
™
will just
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