Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 63)

1 Publication 1747-UM010B-EN-P - September 2003
Chapter
5
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.