AMX AXlink Bus Controllers AXB-232++ - Manual (Page 16)

Programming
12 AXB-232++ RS-232/422/485 Interface
Send_String Escape Sequences
The AXB-232++ does not regard certain three-character combinations within a Send_String
program as literal characters, but as commands. The following table lists those combinations.
Send_String Escape Sequences
27,17,
Sends a break character of
the specified length of time.
Syntax:
"27,17,"
Variable:
time = 100 microsecond increments 1 - 255.
Example:
SEND_STRING AXB232,"27,17,10"
Sends a break character of 1mS.
27,18,1
Sets the ninth data bit to 1 for
all of the following characters
to be transmitted.
Syntax:
"27,18,1"
Example:
SEND_STRING AXB232,"27,18,1"
Sets the ninth data bit to 1 for all of the following characters to be transmitted.
Used in conjunction with the 'B9MON' command.
27,18,0
Clears the ninth data bit to 0
for all of the next characters
to be transmitted.
Syntax:
"27,18,0"
Example:
SEND_STRING AXB232,"27,18,0"
Clears the ninth data bit to 0 for all of the next characters to be transmitted.
Used in conjunction with the 'B9MON' command.
27,19,
Inserts a delay before the
next character to be
transmitted.
Syntax:
"27,19,"
Variable:
time = 100 microsecond increments 1 - 255.
Example:
SEND_COMMAND AXB232,"27,19,10"
Inserts a 1mS delay before the next character to be transmitted.
27,20,0
Asserts RTS hardware hand-
shake output high.
Syntax:
"27,20,0"
Example:
SEND_COMMAND AXB232,"27,20,0"
Asserts RTS hardware handshake output high.
27,20,1
Asserts RTS hardware hand-
shake output low.
Syntax:
"27,20,1"
Example:
SEND_COMMAND AXB232,"27,20,1"
Asserts RTS hardware handshake output low.