SLC 500: I/O files

This addressing syntax applies to Fixed I/O SLC, SLC 5/01, SLC 5/02, and SLC 5/03 OS300.

F:ss.www/bb

F	(file type)
	I - Input
	O - Output
ss	(optional I/O Slot number) 0-30 decimal
www	(I/O Word number expansion) 0-255 decimal
bb	(optional bit offset within word) 0-15 decimal
	When input slot is 0 - 0-23

If you have the following configuration, you may receive unexpected results.

Slot 2 – 8-bit Input

Slot 3 – 32-bit Input

I:2.0 returns the 8-bit input

I:3.0 returns the first word of the 32-bit input

I:2.1 also returns the first word of the 32-bit input

Example

I:22.254/13

Writing to the output files of a SLC 500 is not recommended. However, if you do, ensure the SLC is not in RUN mode. If it is, the write fails.

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