Server Properties
ESERV-1xT Serial Servers
19
ESERV-1xT
(Rev. 1210)
DELIMITER 1, DELIMITER 2 AND DELIMITER REMOVAL
Delimiters and Delimiter Removal enable you to control how characters received on a serial port are sent across the
network. Delimiters are ASCII characters specified by the user when configuring the serial server. The serial server
takes action when it recognizes the specified character(s) on its serial port.
DELIMITER 1
Delimiter 1
is a
start delimiter.
The range of ASCII values is 0 through 255.
DELIMITER 2
Delimiter 2
is an
end delimiter
. The range of ASCII values is 0 through 255.
DELIMITER REMOVAL
Delimiter Removal
controls removing of Delimiter 1 and Delimiter 2 from the received characters before the
received characters are sent to the network.
HOW DELIMITERS WORK
When only Delimiter 2 (the end delimiter) is enabled, characters received by the serial port are accumulated in a
buffer. When the end delimiter is received on the serial port, the buffered characters, including the end delimiter, are
sent to the network. All characters received after the end delimiter are again buffered until another end delimiter is
received.
When both Delimiter 1 (start delimiter) and Delimiter 2 (end delimiter) are enabled, characters received by the serial
port will be discarded until the start delimiter character is detected on the serial port. The serial server then buffers
the start delimiter character and all subsequent characters received after it until the end delimiter is detected. When
the end delimiter is received, the buffered characters, including the start and end delimiters, are sent to the network.
When Delimiter Removal is enabled it removes the delimiter character(s) before sending the other characters across
the network.