Rockwell Automation 160 RSI SERIAL COMM MODULE - Manual (Page 12)

3–2 Installation and Wiring
Module Configuration Switches The RS1 Module utilizes a four position DIP switch (see figure
below) to configure the baud rate, protocol and checksum. These
switches must be set to match the application settings. Refer to the
paragraphs that follow for details.
Important: When you make changes to the switch settings, use a blunt,
pointed instrument (not a pen or pencil).
Figure 3.1
DIP Switch Location (Back of Module)
Setting the Baud Rate – SW1 & SW2
DIP switches SW1 and SW2 set the baud rate. Using the table below,
configure the module for your application. Selection of the “EPROM
Mode” (SW1 & SW2 are On) will cause the baud rate, protocol and
checksum settings to be read from the RS1 parameters listed below.
Note that these parameters must be programmed for correct
operation.
1 2 3 4
ON
On / 1 =
Off / 0 =
1
2
3
4
ON
SW1 - SW4 DIP Switches
Expansion/Keypad
Port Connector
D-Shell Connector
Module Latch
Baud Rate
Switch Setting
Special Notes SW1 SW2
9600 (Default) Off Off
2400 On Off
1200 Off On
EPROM Mode On On Baud Rate will be read from P110 - [EPROM Baud]
Checksum will be read from P109 - [EPROM Checksum]
Protocol will be read from P108 - [EPROM Protocol]
Important: If an “AIC+” is being used and “EPROM
Mode” is selected, SW3 must be set to “On” to enable
software handshaking.
Switches SW1 & SW2
1
2
3
4
ON