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Theory of 984 HSBY Operation
840 USE 106 00 January 2003 41
Custom Scans
Setting up
Custom Scans
The following block diagram shows how the state RAM transfer area might be set
up using multiple scans to transfer all the data.
0nnnnn
1nnnnn
3nnnnn
4nnnnn
Total number of discrete
outputs transferred
Total number of discrete
inputs transferred
Total number of register
inputs transferred
Total number of register
outputs transferred
Critical outputs transferred on
every scan
Additional inputs transferred
in chunks on multiple scans
Critical inputs transferred on
every scan
Additional inputs transferred
in chunks on multiple scans
Critical outputs transferred on
every scan
Additional outputs transferred
in chunks on multiple scans
Additional outputs transferred
in chunks on multiple scans
Critical inputs transferred on
every scan