APPX
Appendix 6 Processing Time
285
A
Master station remote station
When data is transmitted from the master station (RY/RWw) to a remote station (output).
Variable
Master station local station
When data is transmitted from a local station to the master station as follows:
• Master station (RX) local station (RY)
• Master station (RWr) local station (RWw)
Variable
Master station local station
When data is transmitted from the master station to a local station as follows:
• Master station (RY) local station (RX)
• Master station (RWw) local station (RWr)
Variable
Calculation value Station-based block data assurance No station-based block data assurance
Normal value (SM n2) + (LS 1) + Rio (SM 1) + (LS 1) + Rio
Maximum value (SM n2) + (LS 2) + Rio (SM 2) + (LS 2) + Rio
Name of variable Description Unit
SM Master station sequence scan time s
LS Communication cycle interval s
Rio Processing time of the remote station s
n2 Round up the calculated value to the nearest integer of (LS SM)
Calculation value Station-based block data assurance No station-based block data assurance
Normal value If LS < SL: (SM 1) + (LS (n1 + 1)) + (SL 1) (SM 1) + (LS 2) + (SL 1)
If LS SL: (SM 1) + (LS (n1 + 2))
Maximum value (SM 2) + (LS (n1 + 2)) + (SL 1) (SM 2) + (LS 3) + (SL 1)
Name of variable Description Unit
SM Master station sequence scan time s
LS Communication cycle interval s
SL Local station sequence scan time s
n1 Round up the calculated value to the nearest integer of (SM LS)
Calculation value Station-based block data assurance No station-based block data assurance
Normal value If LS < SM: (SM 1) + (LS (n3 + 1)) + (SL 1) (SM 1) + (LS 2) + (SL 1)
If LS SM: (LS (n3 + 2)) + (SL 1)
Maximum value (SM 1) + (LS (n3 + 2)) + (SL 2) (SM 1) + (LS 3) + (SL 2)
Name of variable Description Unit
SM Master station sequence scan time s
LS Communication cycle interval s
SL Local station sequence scan time s
n3 Round up the calculated value to the nearest integer of (SL LS)
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