Mitsubishi Q Series Programming Guide

A - 5 A - 5
4.2.10 End step........................................................................................................................................... 4-19
4.2.11 Instructions that cannot be used with operation outputs ............................................................... 4-21
4.3 Transition.................................................................................................................................................. 4-22
4.3.1 Serial transition.................................................................................................................................. 4-23
4.3.2 Selection transition ............................................................................................................................ 4-25
4.3.3 Parallel transition ............................................................................................................................... 4-28
4.3.4 Jump transition .................................................................................................................................. 4-32
4.3.5 Precautions for creating operation output (step)/transition condition programs ............................. 4-33
4.4 Controlling SFC Programs by Instructions (SFC Control Instructions) .................................................. 4-37
4.4.1 Step operation status check instructions (a, b, &a, &b, la, lb) ......................................................... 4-41
4.4.2 Forced transition check instruction (a, b, &a, &b, la, lb) .................................................................. 4-44
4.4.3 Block operation status check instruction (a, b, &a, &b, la, lb).......................................................... 4-46
4.4.4 Active step batch readout instructions (MOV, DMOV) .................................................................... 4-48
4.4.5 Active step batch readout (BMOV) ................................................................................................... 4-51
4.4.6 Block START & END instructions (s, r) ............................................................................................ 4-54
4.4.7 Block STOP and RESTART instructions (PAUSE, RSTART)......................................................... 4-55
4.4.8 Step START and END instructions (s, r) .......................................................................................... 4-58
4.4.9 Forced transition EXECUTE & CANCEL instructions (s, r) ............................................................. 4-62
4.4.10 Active step change instruction (SCHG).......................................................................................... 4-64
4.4.11 Block switching instruction (BRSET) .............................................................................................. 4-65
4.5 SFC Information Devices......................................................................................................................... 4-67
4.5.1 Block START/END bit ....................................................................................................................... 4-69
4.5.2 Step transition bit............................................................................................................................... 4-71
4.5.3 Block STOP/RESTART bit................................................................................................................ 4-73
4.5.4 Block STOP mode bit........................................................................................................................ 4-76
4.5.5 Continuous transition bit.................................................................................................................... 4-78
4.5.6 "Number of active steps" register ..................................................................................................... 4-81
4.6 Step Transition Watchdog Timer............................................................................................................. 4-82
4.7 SFC Operation Mode Setting .................................................................................................................. 4-84
4.7.1 SFC program start mode .................................................................................................................. 4-85
4.7.2 Block 0 START condition .................................................................................................................. 4-87
4.7.3 Output mode at block STOP............................................................................................................. 4-88
4.7.4 Periodic execution block setting ....................................................................................................... 4-90
4.7.5 Operation mode at double block START ......................................................................................... 4-91
4.7.6 Operation mode at transition to active step (double step START).................................................. 4-92
4.8 SFC Comment Readout Instruction ........................................................................................................ 4-95
4.8.1 SFC comment readout instruction (S(P). SFCSCOMR).................................................................. 4-96
4.8.2 SFC transition comment readout instruction (S(P). SFCTCOMR)................................................ 4-103
5. SFC PROGRAM PROCESSING SEQUENCE 5- 1 to 5-14
5.1 Whole Program Processing of Basic Model QCPU................................................................................5- 1
5.1.1 Whole program processing sequence.............................................................................................. 5- 1
5.2 Whole Program Processing of High Performance Model QCPU, Process CPU, Redundant CPU
and Universal model QCPU..................................................................................................................... 5- 2
5.2.1 Whole program processing sequence.............................................................................................. 5- 2
5.2.2 Execution type designation by instructions ...................................................................................... 5- 4
5.2.3 SFC program for program execution management ......................................................................... 5- 6
5.3 SFC Program Processing Sequence ...................................................................................................... 5- 8

Mitsubishi Q Series Specifications

General

Brand	Mitsubishi
Model	Q Series
Category	Control Unit
Language	English