
B-63983EN/02 TABLE OF CONTENTS
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TABLE OF CONTENTS
Volume 1 of 2
DEFINITION OF WARNING, CAUTION, AND NOTE.................................s-1
1 OVERVIEW OF PMC .............................................................................1
1.1 WHAT IS PMC? ............................................................................................ 2
1.1.1 Basic Configuration of PMC....................................................................................2
1.1.2 I/O Signals of PMC ..................................................................................................2
1.1.3 PMC Signal Addresses.............................................................................................3
1.2 WHAT IS LADDER LANGUAGE? ................................................................. 6
1.2.1 Ladder Diagram Format ...........................................................................................6
1.2.2 Signal Name (Symbol Name)...................................................................................7
1.2.3 Comment ..................................................................................................................7
1.2.4 Graphic Symbols of Relays and Coils......................................................................8
1.2.5 Line Number and Net Number.................................................................................8
1.2.6 Difference Between Relay Sequence Circuit and Ladder Sequence Program.........9
1.2.7 SPECIFICATION OF EXTENDED SYMBOL AND COMMENT......................10
1.3 SEQUENCE PROGRAM CREATION PROCEDURE.................................. 13
1.3.1 Determining Specification .....................................................................................13
1.3.2 Creating Ladder Diagram.......................................................................................13
1.3.3 Editing Sequence Program.....................................................................................14
1.3.4 Transferring and Writing Sequence Program to PMC...........................................15
1.3.5 Checking Sequence Program..................................................................................16
1.3.6 Storage and Management of Sequence Program....................................................16
1.4 EXECUTION OF SEQUENCE PROGRAM ................................................. 17
1.4.1 Execution Procedure of Sequence Program...........................................................18
1.4.2 Repetitive Operation ..............................................................................................19
1.4.3 Processing Priority (1st Level, 2nd Level, and 3rd Level) ....................................20
1.4.4 Structured Sequence Program................................................................................22
1.4.4.1 Implementation .................................................................................................. 22
1.4.4.2 Subprogramming and nesting............................................................................. 28
1.4.4.3 Notes on using subroutines ................................................................................ 32
1.4.5 Synchronization Processing of I/O Signals............................................................34
1.4.6 Interlock .................................................................................................................39
1.4.7 Notes on I/O Signals Updated by Other Than PMC ..............................................40
1.5 MULTI-PMC FUNCTION ............................................................................. 41