User Manual

1 Publication 1747-UM010B-EN-P - September 2003

Chapter

Configuration and Programming

This chapter contains information necessary to:

• understand remote I/O image files

• understand RIO configuration using G files

• control and view RIO devices using the M0 and M1 files

• understand slot addressing

• quickly configure the RIO Scanner

Understanding Remote

Input and Output Image

Files

The SLC system allows you to assign up to 32 words of input and

output image data to a scanner. This allows your scanner to access a

maximum of four full logical racks (512 input and output points) of

data from remote devices.

The illustration on page 5-2 shows how logical racks, logical groups,

and words are allocated within the I/O image files. Note that this

illustration describes the input image file. The scanner’s output image

file is the same, except that its addressing scheme starts with O:e.O

and ends with O:e.31.