Allen-Bradley SLC 500 Manual page 81

The number of Input and Output words selected will determine the valid address range limits for each
variable type. The variable type names are fixed and are displayed in a cell corresponding to the
addressing type. For example, in the following dialog box, the number of Input Words is set to 64. The
variable name for Input Words is IW and the range for 64 words is IW0 to IW63. Output Words are
also set to 64, so the variable name is QW and the range is QW0 to QW63.
Example 2:
In this configuration example, Input Words are set to 64, Output Words are set to 64 and Addressing is
set to Byte Boundaries.
When the OK button is clicked, the following CANopen Protocol dialog box will appear. The valid
address ranges are shown for all types of variables.
When byte addressing is selected, the valid address ranges appear in a different format in the CANopen
Protocol dialog box.
The number of words selected will determine the range limits for each variable type. The variable type
names are fixed and are displayed in a cell corresponding to the addressing type. For example, in the
following dialog box, the number of Input Words is set to 64. The variable name for Input Bits is I and
the range for 64 words is I0.0 to I127.7. Output Words are also set to 64, so the variable name for bit
Outputs is Q, with the range of Q0.0 to Q127.7.
CANopen • • • • 77
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