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Table of Contents
1. Introduction of VS series PLC
1-1 The Basic Concept of PLC Users
1-1-1 Introduction of PLC
1-1-2 Conguration of PLC
1-1-3 PLC Operation and Scan Time
1-1-4 PLC Input Signals
1-1-5 PLC Output Signals
1-1-6 Some Improper Diagrams at a PLC Program
1-1-7 Double Coil Output
1-1-8 Conclusion
1-2 The VS Series PLC Products Overview
1-3 Specification Table of All the VS Series Main Units
1-4 Overview of VS series PLC models
2. Component Descriptions
2-1 Table of Components
2-2 External Input (X) and External Output (Y)
2-2-1 External Input (X)
2-2-2 External Output (Y)
2-2-3 External Input/Output Assigned Numbers
2-3 Auxiliary Relay (M)
2-4 Step Relay (S)
2-5-2 Retentive Timers
2-5 Timer (T)
2-5-1 General Timers
2-5-3 Using a Timer in a Subroutine
2-5-4 Methods to Appoint the Set Value of a Timer
2-5-5 Detailed Description about the Output Action and Accuracy of a Timer
2-6 Counter (C)
2-6-1 16- bit Counter
2-6-2 32- bit Counter
2-6-3 Methods to Appoint the Set Value of a Counter
2-7 Software High Speed Counter
2-7-1 1-Phase High Speed Counter
2-7-2 2-Phase High Speed Counter
2-7-3 A/B Phase High Speed Counter
2-7-4 Precautions for Using the Software High Speed Counter
2-8 Data Register (D) and Expansion Register (R)
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