FAST Task Cycle Time
(Original Document)
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Definition
FAST cycle time = Program processing time (Ppt) + input and output internal processing time (Ipt).
Definition of Ppt Program Processing Time
Ppt = Application code execution time relative to the FAST (Apcet).
Application code execution time: see Definition of Ppt Program Processing Time.
Definition of Input and Output Internal Processing Time (Ipt)
Ipt = FAST task overhead system time (FosT) + input and output management time for implicit I/O %I and %Q.
FAST task overhead system time (FosT)
Processors
FAST task overhead system time
TSX P57 0244/104/1634/154
0.30 ms
TSX P57 204/254/2634
TSX PCI 57 204
0.30 ms
0.30 ms
TSX P57 304/354/3634
TSX PCI 57 354
0.35 ms
0.35 ms
TSX P57 454/4634
TSX H57 24M/44M
0.08 ms
0.07 ms
TSX P57 554/ 5634/6634
0.07 ms
Input and output management time for implicit I/O %I and %Q: see Management Time on Input/Output of Implicit I/O %I and %Q.