
Modbus Card Instruction Manual v1.1
©2011 Profire Energy Inc
Page 6
DIP Switch Settings
There are 4 DIP switches included on the Modbus Card v1.0 and 8 DIP switches on the Modbus Card v2.0. The default settings for these DIP Switches are shown
in Figure 3 and Figure 5 respectively. You should ensure that the DIP switches are set according to your needs. The following tables describe the DIP switch
functions:
OFF = 9600 bps, ON = 19200 bps
NOTE: Press the reset button on the card after changing the baud rate setting
while the system is running
OFF = 120 Ohm Termination, ON = No Termination
NOTE: External termination with a different resistor value may be required for
best performance if cable other than Cat-5e is used.
OFF = 9600 bps, ON = 19200 bps
NOTE: Press the reset button on the card after changing the baud rate setting
while the system is running
Ignored in the current firmware revision
Ignored in the current firmware revision
OFF = 120 Ohm Termination, ON = No Termination
NOTE: External termination with a different resistor value may be required for
best performance if cable other than Cat-5e is used.
current firmware revision
Ignored in the current firmware revision
Figure 4
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