Omron DeviceNet Safety, System Configuration Manual

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Appendix A
Additional Information: Allocation State of Blocks 1 and 2
The product name of the device to which memory is allocated in each area and the first CPU Unit word allo-
cated are displayed in the Allocation State List for the blocks.
The first bit that is allocated is given in the Ch column. The word address is given first followed by the first bit.
Example: “3300: Bit 00” indicates that the first allocated bit is bit 00 of CIO 3300 (i.e., the allocation starts
from the low byte).
Example: “3300: Bit 08” indicates that the first allocated bit is bit 08 of CIO 3300 (i.e., the allocation starts
from the high byte).
CPU Unit words are not displayed in unused memory block.
Changing the I/O Block Start Word
Setup Button on the I/O Allocation Tab Pages ( Device - Parameter - Edit )
Use the following procedure to change the allocation areas for the I/O blocks in CPU Unit I/O memory.
1. Click the Setup Button of the block to change.
2. The following dialog box will be displayed.
Edit Button Enables manually editing allocations using the Edit Window.
Information Button Displays the slave information (allocated words and I/O comments).
Memory Blocks 1 and 2 Displays the allocation state of each slave (product name) in Blocks 1 and 2.
Ch Beginning of allocation. The start bit address is displayed after the word
address.
Product Name The name of the device to which memory is allocated.
Setup Button Sets the start words and size (number of words) of Blocks 1 and 2.
Item Description
Example: Allocation starts with bit 00 (LSB)
of CIO 3300.
The byte starting with bit 08 of CIO 3300 is also
allocated to the device with node address #2, so this
cell is left blank.
Product name of the slave
First bit address (e.g., bit 00)
Word address (e.g., CIO3300)