Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 477

(d) Refresh with CC-Link IE Field Network Basic
This is the time required for refreshing data between link devices of CC-Link IE Field Network Basic and user
devices in the CPU module.
 Calculation method
Calculate using the following formulas. Use the values in the following table for KN1 to KN4.
T = KM1 + KM2 × (((RX + RY)  16) + RWw + RWr) + E [µs]
E = KM3 + KM4 × (((RX + RY)  16) + RWw + RWr) [µs]
• T: Link refresh time
• E: Link refresh time when the file register (R, ZR) is used
• RX: Number of points of remote input (RX) refreshed by the master station
• RY: Number of points of remote output (RY) refreshed by the master station
• RWw: Number of points of remote register (RWw) refreshed by the master station
• RWr: Number of points of remote register (RWr) refreshed by the master station
• KM1 to KM4: Constant
CPU module
Q03UDVCPU
Q04UDVCPU, Q04UDPVCPU
Q06UDVCPU, Q06UDPVCPU,
Q13UDVCPU, Q13UDPVCPU,
Q26UDVCPU, Q26UDPVCPU
*1 This time is added when the file register (R, ZR) is used.
*2 This value is determined according to the number of slave stations to be connected and the number of occupied
stations.
KM1 KM2
20.0 0.02
20.0 0.02
20.0 0.02
*1
*2
*2
*2
*2
Without
KM3
extended SRAM
cassette
3.0 0.05
3.0 0.05
3.0 0.05
APPENDICES
KM4
A
With extended
SRAM cassette
0.11
0.11
0.11
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