Hardware reference guide

CPU Modules
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35013379 11/2011
The following figure shows SW1 and SW2.
NOTE: If "0" or an address greater than 64 is selected, the Modbus + LED will be
"on" steady, to indicate the selection of an invalid address.
The following table shows the SW1 and SW2 address settings.
Key Switch
The key switch is used to protect memory from programming changes while the
controller is in operation. The following figure shows the key switch.
NOTE: The key switch positions shown next to the switch (above) are for reference
only and are marked on the module as indicated on the right.
SW1 and SW2 Address Settings
Node Address SW1 SW2
1 ... 9 0 1 ... 9
10 ... 19 1 0 ... 9
20 ... 29 2 0 ... 9
30 ... 39 3 0 ... 9
40 ... 49 4 0 ... 9
50 ... 59 5 0 ... 9
60 ... 64 6 0 ... 4