Mitsubishi Electric MELSEC Q Series Reference Manual page 110

3 SPECIFICATIONS
[Remote master station link refresh time ( m)]
= KM1+KM2
m
= KM3
E
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(3) Link refresh time
The link refresh time (CPU module end processing time extension) is calculated
as shown below.
• Link device assignment points
• Type of CPU used
LB+LX+LY+SB
16
LB+LX+LY
+LW
16
am : Remote master station link refresh time
LB : Total points of link relays (LB) refreshed by the corresponding station
LW : Total points of link registers (LW) refreshed by the corresponding station
LX : Total points of link inputs (LX) refreshed by the corresponding station
LY : Total points of link outputs (LY) refreshed by the corresponding station
SB : Number of points of the link special relay (SB)
SW : Number of points of the link special register (SW)
E :
Transfer time of the file registers (R, ZR), extended data register (D),
and extended link register (W) on the memory card
KM1, KM2, KM3 : Constants
1: Total points are the sum of link devices set in the link refresh parameter settings
and in the network range settings. The points assigned for reserved station are
not included.
2: Add αE when the data are refreshed to a file register in a memory card. Do not
add αE if the data are refreshed to a file register in a standard RAM or extended
SRAM cassette.
(a) When a master module is connected to main base unit
CPU type
High Performance
model QCPU
Process CPU
Redundant CPU
Universal model
QCPU
+LW+SW + [ms]
E
Constant
Q02CPU
Other than above
Q00UJ/Q00U/Q01UCPU
Q02UCPU
Q03UD/Q03UDECPU
Other than above
MELSEC-Q
2
KM2
KM1
( 10 –3 ) (
0.30 0.48
0.13 0.41
0.16 0.41
0.16 0.41
0.09 0.41
0.09 0.41
1
1
1
1
KM3
10 –3 )
0.47
0.33
—
0.39
0.39
0.33
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