Mitsubishi MELSEC-Q Series User Manual page 218

5
PROCESSING TIME OF QCPU IN MULTIPLE CPU
SYSTEM
(3) CC-Link auto refresh
5
- 9 5.2 Factors for prolonged Scan Time
(a) Auto refresh time on CC-Link network
The amount of time required for performing the refresh process between QCPU
and CC-Link master local modules.
Refer to the following manual for details on the auto refresh time for CC-Link.
QJ61BT11N CC-Link System Master Local Module User's Manual
(b) Calculation of auto refresh time
The amount of time required for the auto refresh process will be prolonged only by
the following amount of time when requests for refreshing are issued by other CC-
Link modules at the same time on a multiple CPU system.
(Extension time) = (No. of transmission/reception word points)
The number of transmission/reception words is the transfer data below.
Link refresh data
Use the values in Table5.11 for N5
Table5.11 Time prolonged in simultaneous refresh request with the CC-Link module of other CPU
QCPU
Q00CPU
Q01CPU
Q02CPU
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU
Q02PHCPU, Q06PHCPU,
Q12PHCPU, Q25PHCPU
Q02UCPU, Q03UDCPU,
Q04UDHCPU, Q06UDHCPU,
Q13UDHCPU, Q26UDHCPU,
Q03UDECPU, Q04UDEHCPU,
Q06UDEHCPU, Q13UDEHCPU,
Q26UDEHCPU
(RX + RY + SB)
: + SW
16
System with main base unit
only
0.54 s
N5 (No. of other CPUs) ( s)
N5
System including
extension base unit(s)
1.30 s