Rockwell Automation 1734-485ASC POINT I/O ASCII User Manual - Manual (Page 48)

Publication 1734-UM009B-EN-P - July 2003
2-22 Configuring Your ASCII Module
Setting Up the Transmit Character Buffer Length
The Transmit Character Buffer Length is the number of characters that
the ASCII module can receive in its transmit buffer from the DeviceNet
network. This size contributes to the I/O’s consume size. This size can
be found in the Parameter object.
Setting Up and Using the Transmit Delimiter
The Transmit Delimiter is an end-of-string character that determines
how many bytes to transmit over the serial link to your ASCII device.
The ASCII module will transmit up to and (optionally) including the
delimiter when the above condition is met. The Transmit Delimiter
can be set to any valid binary value. Be careful not to set the delimiter
to a value outside of the valid range for your data bits. (A data bit size
setting of 7 will only allow you a delimiter range of 0-127 dec.,
00-7F
hex
.)
If the length is 0 and if you do not have a valid delimiter in your
string, the module will send all data characters from the I/O field to
your serial device
.
IMPORTANT
This Transmit Delimiter will be used only if the
length is 0. If this length is not 0, the ASCII module
will ignore the transmit delimiter and will send the
define number of characters.