Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 38)

Installation
Chapter 2
2Ć26
5 EVEN PARITY
6 SEND EMBEDDED RESPONSES
ENTER NEXT>
This menu allows you to select options that apply to only the modem port
of the 1775–KA module. These options are described below.
Enable/Disable Port
This option determines whether or not the 1775–KA module can
communicate through its RS–232–C port. You must select the ENABLE
option in order to allow this communication to take place. If you make no
selection, the PLC–3 disables the RS–232–C port by default.
Note, however, that you cannot use LIST to change any other parameters
of the RS–232–C port unless you first disable the port. After you are
done entering parameters through LIST, don’t forget to enable the
RS–232–C port again
Station Number
This option selects the number by which the PLC–3 station is identified
on an RS–232–C communication link. In particular, note that the number
377 is illegal. Entering 377 as the station number will automatically
disable the RS– 232–C port of the 1775–KA module, and you will not be
able to enable it again through LIST until you select a different station
number. If you make no selection, the station number will be 377 by
default.
Baud Rate
This option specifies the communication rate over the RS–232–C port.
The choices are:
110 baud 2400 baud
300 baud 4800 baud
600 baud 9600 baud
1200 baud 19200 baud
For long–line communication, the maximum allowed rate is 4800 baud.
The default baud rate is 1200 baud (see Table 2.D).