Mitsubishi Q Series Programming Guide

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5 SFC PROGRAM PROCESSING SEQUENCE
MELSEC-Q
(3) Processing time required to switch SFC program from WAIT status to scan status
The processing time required to switch an SFC program from a WAIT status to a scan status is
shown below.
Although the scanning time is extended by the amount of the processing time, this will not
result in a watch dog timer error detection.
No system processing time is required when switching from a scan status to a WAIT status.
Switching time =(number of created programs × Km) + (number of created steps × Kn) + (SFC
program capacity × Kp) + Kq
High Performance model
QCPU
Process
CPU
Universal model QCPU
Q02CPU QnHCPU QnPHCPU Q02UCPU
Q03UDCPU
Q03UDECPU
Q04UDHCPU
Q06UDHCPU
Q04UDEHCPU
Q06UDEHCPU
Q13UDHCPU
Q26UDHCPU
Q13UDEHCPU
Q26UDEHCPU
Km 451.9µs 194.7µs 194.7µs 11.2μs 10.6μs 4.4μs 7.3μs
Kn 19.1µs 8.2µs 8.2µs 3.6μs 0.7μs 0.5μs 1.1μs
Kp 6.2µs 2.7µs 2.7µs 0.8μs 0.8μs 0.7μs 0.7μs
Kq - - - 8470μs 13970μs 8070μs 8100μs

Mitsubishi Q Series Specifications

General

I/O Points	Up to 4096 points
Communication	Ethernet, RS-232, RS-485
I/O Modules	Digital, Analog, Specialized
Programming Language	Function Block Diagram, Structured Text
Power Supply	24V DC, 100-240V AC
Operating Temperature	0°C to 55°C
Shock Resistance	147 m/s2 acceleration, 3 times in each of X, Y, and Z directions
Program Capacity	Up to 252K steps