Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 75)

Publication 1747-UM005B-EN-P - March 2006
Module Configuration Using the Backplane 6-9
DF1 Port Setup Parameters
When the module is powered up for the first time, the DF1 port will
be set to the default parameters shown in the table below. If these
parameters are changed and the setup is saved (by changing to
software Run mode), then the module will always power up with the
new settings, unless the battery fails and power to the module’s RAM
is lost.
DF1 Port Setup Parameters
Parameter Default Options Description
Communication
Rate 1200 0=300, 1=600, 2=1200, 3=2400,
4=4800, 5=9600, 6 and 7=19200 The speed in bits per second at which data is
transferred. Must be set the same as the DF1
device.
Bits Per Character 8 bits 0=7 bits, 1=8 bits The size in number of bits of each character to be
transferred. Must be set the same as the DF1
device.
Parity None 0 and 3=None, 1=Even, 2=Odd Used for checking data during the transfer. Must be
set the same as the DF1 device.
Stop Bits 1 bit 0=1 bit, 1=2 bits Used for delineating data during the transfer. Must
be set the same as the DF1 device.