Mitsubishi Electric MELSEC-Q/L - Page 921

APPENDICES
Appendix 1 Operation Processing Time
919
A
• Instructions available from function version B
*2 If the processing overlaps those of the other CPUs in a multiple CPU system, the processing time increases by a maximum of the
following time.
*3 In a multiple CPU system, the instruction processing time for the intelligent function module under control of the host CPU is equal to
that for the intelligent function module under control of another CPU.
*4 Products with the first five digits of the serial No. "07032" or higher are applicable.
■Data link instruction
The processing time when the instruction is not executed is calculated as follows:
• Q02CPU: 0.079  (No. of steps for each instruction + 1) s
• Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q02PHCPU, Q06PHCPU, Q12PHCPU, Q25PHCPU, Q12PRHCPU,
Q25PRHCPU: 0.034  (No. of steps for each instruction + 1) s
■Redundant system instructions (for redundant CPU)
Instruction Condition/number of points processed Processing time (s)
Qn QnH QnPH QnPRH
COM
*2
With auto refresh of CPU
shared memory
Refresh range: 2K words (0.5K words
assigned equally to all CPUs)
720 660 660 
Refresh range: 4K words (1K words
assigned equally to all CPUs)
860 730 730 
Without auto refresh of
CPU shared memory
 43 20 20 20
FROM
*2
Reading from other CPU
shared memory
n3=1 59 29 29 
n3=1000 530 500 500 
Reading buffer memory of
intelligent function
module
*3
n3=1 Main base unit 51 24 24 
Extension base unit 54 27 27 
n3=1000 Main base unit 540 480 480 
Extension base unit 1100 1050 1050 
S.TO Write to CPU shared
memory of host CPU
n2=1 74 33 33 
n2=256 126 54 54 
S (P). DATERD
*4
Reading expansion clock
data
 25 11 11 11
S (P). DATE+
*4
Expansion clock data
addition operation
 38 17 17 17
S (P). DATE-
*4
Expansion clock data
subtraction operation
 38 17 17 17
• For a system having only the main base unit
(Instruction processing time increase) = 0.54  (number of points processed)  (number of other CPUs) (s)
• For a system including extension base units
(Instruction processing time increase) = 1.30  (number of points processed)  (number of other CPUs) (s)
Instruction Condition (device) Processing time (s)
Qn QnH QnPH QnPRH
ZCOM  691 289 289 289
Instruction Condition (device) Processing time (s)
Qn QnH QnPH QnPRH
SP.CONTSW  9.6