Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 395)

Channel Configuration
16-17
Parameter Description
Data Bits Number of bits per byte. Toggle between 7 and 8.
RTS off Delay (x20ms) If you are using a half-duplex communication device, you
may need to delay turning off the RTD (request to send)
signal to make sure the last characters are sent. Valid
range is 0-65535.
RTS send Delay
(x20ms)
If you are using a half-duplex communication device, you
may need to delay sending a message after activating an
RTD (request to send) signal. Valid range is 0-65535.
XON/XOFF Toggle between Enabled and Disabled. As the processor
receives characters, it constantly determines how many
more it can receive without loosing any. When XON/XOFF
is enabled, the processor sends a “stop sending” character,
XOFF. If the sending device has the XON/XOFF feature, it
stops sending characters. When more room is available,
the processor sends a “start sending” character, XON.
Append 1 Enter the character you want to indicate an end-of-line in the
ASCII AWA instruction, or press the backslash key [\]
followed by the hexadecimal equivalent of the ASCII
character. The default is
[Enter] (\0D). To specify no
character, enter \ff.
Append 2 Same as above except the default is a line feed, \0A.