Mitsubishi MELSEC Q Series User Manual page 130

5 DATA LINK PROCESSING TIME
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(b) Synchronous mode
SM n + LS + Remote device station processing time [ms]
SM: Master station sequence program scan time
LS: Link scan time (see Section 5.1)
n: (LS/SM)value when fractions following the decimal point are
rounded up to the next whole number
(Example) When the sequence scan time for the master station is 20 ms, the link scan
time is 3 ms and the remote device station processing time is 1.5 ms.
SM n + LS + Remote device station processing time [ms]
= 20 1 + 3 + 1.5
= 24.5 [ms]
[Maximum value]
(a) Asynchronous mode
SM + LS 2 + Remote device station processing time [ms]
SM: Master station sequence program scan time
LS: Link scan time (see Section 5.1)
(Example) When the sequence scan time for the master station is 20 ms, the link scan
time is 3 ms and the remote device station processing time is 1.5 ms.
SM + LS
= 20 + 3 2 + 1.5
= 27.5 [ms]
(b) Synchronous mode
SM n + LS 2 + Remote device station processing time [ms]
SM: Master station sequence program scan time
LS: Link scan time (see Section 5.1)
n: (LS/SM)value when fractions following the decimal point are
rounded up to the next whole number
(Example) When the sequence scan time for the master station is 20 ms, the link scan
time is 3 ms and the remote device station processing time is 1.5 ms.
SM n + LS
= 20 1 + 3
= 27.5 [ms]
2 + Remote device station processing time [ms]
2 + Remote device station processing time [ms]
2 + 1.5
MELSEC-Q
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