Mitsubishi Q Series Programming Guide

5 - 9 5 - 9
5 SFC PROGRAM PROCESSING SEQUENCE
MELSEC-Q
(2) High Performance model QCPU, Process CPU, Redundant CPU and
Universal model QCPU
The High Performance model QCPU, Process CPU and Redundant CPU can execute multiple
programs stored in the program memory.
(Scan execution is enabled for two SFC programs (one SFC program for program execution
management and one normal SFC program).
1
Multiple programs are executed in the order of the program setting in the PLC parameter
dialog box.
The execution status of multiple programs is shown below under the following conditions.
[Condition]
1) Program setting in PLC parameter dialog box
1: ABC (sequence) <scan>
2: DEF (SFC) <scan>
3: XYZ (sequence) <low speed>
2) Low speed program time setting in parameter: 5ms
3) SFC program: Set to Auto START ON
[Program execution]
Program
ABC
DEF
XYZ
END0
END0
END
00
STOP RUN
Power ON RUN
END
processing
Program
Scan
Scan
SFC program
execution
Low
speed
Low
speed
Scan
Scan
SFC program
execution
Scan
Scan
SFC program
execution
Low
speed
Scan
Scan time
Program
REMARKS
•
1: The number of scannable SFC programs in the Universal model QCPU is only one (one
normal SFC program).
• Refer to Section 6.1 for the SFC program start/stop method.

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