Rockwell Automation 1747-SCNR ControlNet Scanner Module Reference Manual - Manual (Page 115)

Publication 1747-RM623D-EN-P - June 2006
Application Examples E-37
By default, the Chunk 1 Output File is the output image file for
the Basic module and the Chunk 1 Input File is the input image
file for the Basic module. We must then assign the Chunk 2
Output File as the Basic module’s M0 file and the Chunk 2 Input
File as the Basic module’s M1 file. The size for each of these files
is 64 words. The total number of words transferred bi-directional
between the SLC processor and the Basic module will be 72.
The first eight will be the Basic module’s I/O image and the last
64 words will be the Basic module’s M-file words. This order is
determined by the Chunk numbers. This Advanced screen
should then look as follows:
Safe State data is available under the Configuration Settings tab.
For 1747-BAS module connections, it is recommended that
outputs be reset to 0 when the SLC processor is placed into the
Program mode or if communications is lost to the 1747-ACNR15
module. The Hold Last State option is not available for the
1747-BAS module.
5. Click APPLY.
6. Click OK.