Mitsubishi Electric MELSEC-Q Series User Manual page 211

11 PROCESSING TIMES OF THE BASIC MODEL QCPU
11 - 3
(3) Instruction execution time
(a) Sum of the processing times of the instructions used in the program
executed by the Basic model QCPU.
Refer to the following manual for the processing times of the corresponding
instructions.
• QCPU (Q Mode)/QnACPU Programming Manual (Common Instructions)
(b) An interrupt program has an overhead time at the start of interrupt program
and an overhead time at the end of interrupt program.
Add an overhead time at the start of interrupt program and an overhead time
at the end of interrupt program to the instruction execution time.
1) Overhead time at the start of interrupt program (B1)
CPU Type
Without rapid start With rapid start
Q00JCPU
Q00CPU
Q01CPU
1: The values assume that the QI60 is installed on slot 0 of the main base.
2) Overhead time at the end of interrupt program (B2)
CPU Type
Q00JCPU
Q00CPU
Q01CPU
(4) Module refresh time
(a) Refresh of MELSECNET/H
Refresh time between the Basic model QCPU and MELSECNET/H network
module.
Refer to the following manual for the refresh time of the MELSECNET/H.
• Q Corresponding MELSECNET/H Network System Reference Manual
(b) Automatic refresh of CC-Link
Refresh time between the Basic model QCPU and CC-Link master/local
module.
Refer to the following manual for the automatic refresh time of CC-Link.
• Control & Communication Link System Master/Local Module User's
Manual
(c) Intelligent utility package (Intelligent automatic refresh)
1) Refresh time between the intelligent function module and CPU module,
which is designated on "Auto refresh setting" screen of the utility
package for the intelligent function module.
2) Calculate the intelligent automatic refresh time with the following
expression.
(Refresh time) = KN1 + KN2
Cyclic Interrupt (I28 to I31)
Processing
175 150
145 125
135 120
Without rapid start
175
145
135
MELSEC-Q
Interrupt Processing from QI60
(I0 to I15)
Without rapid start
350
285
270
With rapid start
150
125
120
(number of refresh points)
1
With rapid start
325
265
255
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