Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 490

(9) Scan time measurement
When the scan time is measured (Page 181, Section 3.13.3), the processing time listed in the following table is
required.
Q00UJCPU
Q00UCPU, Q01UCPU
Q02UCPU
Q03UD(E)CPU, Q04UD(E)HCPU, Q06UD(E)HCPU, Q10UD(E)HCPU,
Q13UD(E)HCPU, Q20UD(E)HCPU, Q26UD(E)HCPU, Q50UDEHCPU,
Q100UDEHCPU
Q03UDVCPU, Q04UDVCPU, Q04UDPVCPU, Q06UDVCPU, Q06UDPVCPU,
Q13UDVCPU, Q13UDPVCPU, Q26UDVCPU, Q26UDPVCPU
*1 The number of the branch instructions is a total of the following instructions, which are executed during the scan time
measurement.
Pointer branch instruction: CJ, SCJ, JMP
•
Subroutine program call instruction: CALL(P), FCALL(P), ECALL(P), EFCALL(P), XCALL(P), RET
•
(10)Monitor condition setting
When the monitor condition is set (Page 146, Section 3.11.1), the processing time listed in the following table is
required.
Q02UCPU
Q03UD(E)CPU, Q03UDVCPU, Q04UD(E)HCPU, Q04UDVCPU,
Q04UDPVCPU, Q06UD(E)HCPU, Q06UDVCPU, Q06UDPVCPU,
Q10UD(E)HCPU, Q13UD(E)HCPU, Q13UDVCPU, Q13UDPVCPU,
Q20UD(E)HCPU, Q26UD(E)HCPU, Q26UDVCPU, Q26UDPVCPU
(11)Time taken to collect module errors
When using the module error collection, the scan time increases by the time found by the following calculation
formula. Each N1 and N2 in the calculation formula indicates the following.
 Calculation formula
Collection time = N1 + N2 × (Number of module errors collected in one scan)
CPU module
Q00UJCPU
Q00UCPU, Q01UCPU
Q02UCPU
Q03UD(E)CPU, Q04UD(E)HCPU, Q06UD(E)HCPU,
Q10UD(E)HCPU, Q13UD(E)HCPU, Q20UD(E)HCPU,
Q26UD(E)HCPU, Q50UDEHCPU, Q100UDEHCPU
488
CPU module
CPU module
Processing time
180.3 + 5.9 × number of branch instructions µs
179.5 + 5.8 × number of branch instructions µs
40.0 + 3.0 × number of branch instructions µs
40.0 + 1.5 × number of branch instructions µs
30.0 + 0.40 × number of branch instructions µs
Processing time
Specified step
matches the execution
condition
30µs
10µs
Main base unit
N1 N2
175µs ---
145µs 120µs
145µs 90µs
15µs 70µs
*1
*1
*1
*1
*1
Specified device
matches the execution
condition (Device D
matches the condition)
40µs
30µs
Extension base unit
N1 N2
190µs ---
190µs 140µs
185µs 105µs
15µs 100µs