Mitsubishi Electric MELSEC Q Series Reference Manual page 108

3 SPECIFICATIONS
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2) In the case of END asynchronization
[Transmission delay time of B/W/Y communication] (END asynchronization)
1) Multiplexed remote master station
Transmission delay time (T
[Multiplexed remote master station side scan time (Sm) > Link scan time (LS)]
= Sm + m + LS + (Ss + s)
T
DM1
[Multiplexed remote master station side scan time (Sm) < Link scan time (LS)]
= Sm + m + LS + (Ss + s)
T
DM1
2) Multiplexed remote sub-master station
Transmission delay time (T
[Multiplexed remote master station side scan time (Sm) > Link scan time (LS)]
= Ss + s + LS + (Sm + m)
T
DS1
[Multiplexed remote master station side scan time (Sm) < Link scan time (LS)]
= Ss + s + LS + (Sm + m)
T
DS1
Sm :Multiplexed remote master station side scan time
Ss :Multiplexed remote sub-master station side scan time
m
:Multiplexed remote master station side link refresh time
s
:Multiplexed remote sub-master station side link refresh time
LS :Link scan time
The above calculations are effective under the following conditions:
• There are no faulty stations.
• Transient transmission is not executed.
POINT
When the block send/receive data assurance per station setting is enabled, the
following formulas are used.
1) Formula for Transmission delay time (T
[Multiplexed remote master station side scan time (Sm) > Link scan time (LS)]
= (Sm + m)
T
DM1
[Multiplexed remote master station side scan time (Sm) < Link scan time (LS)]
= Sm + m + LS
T
DM1
2) Formula for Transmission delay time (T
[Multiplexed remote master station side scan time (Sm) > Link scan time (LS)]
= Ss + s + LS + (Sm + m)
T
DS1
[Multiplexed remote master station side scan time (Sm) < Link scan time (LS)]
= Ss + s + LS
T
DS1
Multiplexed remote sub-master station:
)
DM1
2 [ms]
2 [ms]
Multiplexed remote master station:
)
DS1
2 [ms]
2 [ms]
)
DM1
2 + LS + (Ss +s) 2 [ms]
2 + (Ss + s)
2 [ms]
)
DS1
3 [ms]
2 + (Sm + m)
2 [ms]
MELSEC-Q
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