Send_String Escape Sequences - AMX DXLink Instruction Manual

SEND_STRING Escape Sequences

The DXLink Modules support several special SEND_STRING escape sequences. If any of the character
combinations listed below are found anywhere within a SEND_STRING program instruction, they will be
treated as a command and not the literal characters.
Use the ESCSEQON and ESCSEQOFF NetLinx SEND_COMMANDS to control whether these are active
or not. The ESCSEQON command must precede the Escape Sequences, otherwise the strings will be
processed normally. These commands are sent to Port 1.
SEND_STRING Escape Sequences
Command
27, 17
Send a break character for
a specified duration to a
specific device.
27, 18, 0
Clear the ninth data bit by
setting it to 0 on all character
transmissions.
27, 18, 1
Set the ninth data bit to 1 for
all subsequent characters to
be transmitted.
27, 19
Insert a time delay before
transmitting the next
character.
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver
NetLinx Programming of DXLink Transmitters and Receivers
Description
Syntax:
27,17,<time>
Variable:
time = 1 to 255 (measured in 100 microsecond increments)
Example:
SEND_STRING RS232_1,"27,17,10"
Sends a break character of 1 millisecond to the RS232_1 device.
Used in conjunction with the 'B9MON' command (see page 95).
Syntax:
27,18,0
Example:
SEND_STRING RS232_1,"27,18,0"
Sets the RS232_1 device's ninth data bit to 0 on all character transmissions.
Used in conjunction with the 'B9MON' command (page 95).
Syntax:
27,18,1
Example:
SEND_STRING RS232_1,"27,18,1"
Sets the RS232_1 device's ninth data bit to 1 on all character transmissions.
Syntax:
27,19,<time>
Variable:
time = 1 to 255. Measured in 1 millisecond increments.
Example:
SEND_STRING RS232_1,"27,19,10"
Inserts a 10 millisecond delay before transmitting characters to the RS232_1
device.
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