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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.
Switch Setting
Baud Rate
SW1
SW2
9600 (Default)
Off
Off
2400
On
Off
1200
Off
On
EPROM Mode
On
On
SW1 - SW4 DIP Switches
ON
1 2 3 4
Switches SW1 & SW2
Special Notes
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.
Module Latch
Expansion/Keypad
Port Connector
On / 1 =
Off / 0 =
D-Shell Connector
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