Mitsubishi Q series Programming Manual page 8

5.3.1 SFC program execution .................................................................................................................... 5- 8
5.3.2 Block execution sequence ................................................................................................................ 5-10
5.3.3 Step execution sequence.................................................................................................................. 5-11
5.3.4 Continuous transition ON/OFF operation......................................................................................... 5-12
6. SFC PROGRAM EXECUTION
6.1 SFC Program START And STOP ........................................................................................................... 6- 1
6.1.1 SFC program resumptive START procedure................................................................................... 6- 2
6.2 Block START and END............................................................................................................................ 6- 4
6.2.1 Block START methods...................................................................................................................... 6- 4
6.2.2 Block END methods .......................................................................................................................... 6- 5
6.3 Block Temporary Stop and Restart Methods .......................................................................................... 6- 6
6.3.1 Block STOP methods........................................................................................................................ 6- 6
6.3.2 Restarting a stopped block ............................................................................................................... 6- 9
6.4 Step START (Activate) and END (Deactivate) Methods ........................................................................ 6-11
6.4.1 Step START (activate) methods....................................................................................................... 6-11
6.4.2 Step END (deactivate) methods ....................................................................................................... 6-12
6.4.3 Changing an active step status (Cannot be used for Basic model QCPU and
Universal model QCPU) ................................................................................................................... 6-13
6.5 Operation Methods for Continuous Transition ........................................................................................ 6-14
6.6 Operation at Program Change ................................................................................................................ 6-15
APPENDICES
APPENDIX 1 Special Relay and Special Register List..........................................................................APP- 1
1.1 Special Relays (SM)........................................................................................................................APP- 2
1.2 Special Registers (SD)....................................................................................................................APP- 6
APPENDIX 2 Restrictions and Alternative Method of the Basic Model QCPU and
Universal Model QCPU.......................................................................................................................APP- 7
2.1 Step Transition Watchdog Timer Replacement Method................................................................APP- 8
2.2 Periodic Execution Block Replacement Method ............................................................................APP- 9
2.3 Forced Transition Bit (TRn) Replacement Method ........................................................................APP-10
2.4 Active Step Change Instruction (SCHG) Replacement Method....................................................APP-11
A - 6
6- 1 to 6-17
APP- 1 to APP-12
A - 6