Siemens SIMATIC NET CP 142-2, Руководство пользователя, Страница: 5 / 84

B8976111/02 Contents
I-1
Contents
1 Introduction 1-1
1.1 General 1-2
1.1.1 Overview of the Chapters 1-2
1.1.2 General Information for the Reader 1-3
1.1.3 Requirements for Understanding the Manual 1-4
1.1.4 Sample Programs 1-5
1.1.5 Further Support and Hotline 1-5
2 Technical Description and Installation Guidelines 2-1
2.1 Overview of the Module 2-2
2.1.1 Introduction 2-2
2.1.2 Technical Specifications of the Module 2-3
2.1.3 Installing and Connecting the CP 142-2 2-4
2.1.4 Indicators and Operator Controls on the CP 142-2 2-6
2.1.4.1 Meaning of the Indicators and Operator Controls: 2-6
2.1.4.2 Status Display of the CP 142-2 (all group LEDs off) 2-7
2.1.4.3 Slave Display of the CP 142-2 (at least on group LED lit) 2-8
2.1.4.4 Meaning of theSET/DISPLAY Button 2-9
2.1.4.5 Slots Permitted for the CP 142-2 in the ET 200X Distributed I/O Station 2-9
2.1.4.6 Configuring the AS-Interface with the SET/DISPLAY Button 2-9
2.1.4.7 Types of Operation with the CP 142-2 2-11
3 Standard Operation of the CP 142-2 3-1
3.1 Addressing the CP 142-2 3-1
3.1.1 Addressing using the BM141/BM142 3-1
3.1.2 Addressing when using the BM147 3-1
3.2 How the User Program Addresses the AS-i Slaves 3-2
3.2.1 Addressing AS-i User Data 3-2
3.2.2 Accessing the AS-i User Data (BM141, BM142) 3-4
3.2.3 Access to the AS-i User Data (BM147) 3-5
3.3 Diagnostics and Reaction to Interrupts on the CP 142-2 3-6
3.3.1 Diagnostics and Reaction to Interrupts with the BM141/BM142 3-6
3.3.1.1 Interrupt Events 3-6
3.3.1.2 Structure of PROFIBUS DP Slave Diagnostics 3-7
3.3.2 Diagnostics and Reaction to Interrupts with the BM147 3-10
3.3.2.1 Overview 3-10
3.3.2.2 Interrupt Events 3-10
3.3.2.3 Sequence of Diagnostic Interrupt Servicing 3-11
3.3.2.4 Response to Interrupts in Various CP States 3-11
3.3.2.5 Local Data of the Diagnostic Organization Block (OB82) 3-12
3.3.2.6 Reading the Diagnostic Data Record DS1 3-13
3.3.2.7 Programming Example 3-14
4 CP 142-2 Extended Operation with FC “ASI_3422” 4-1
4.1 Overview of the Functions 4-1
4.1.1 Calling the Function 4-1
4.2 Interface for AS-i commands 4-7
4.2.1 The Commands Supported by the CP 142-2 4-7
4.2.1.1 Set_Permanent_Parameter 4-8
4.2.1.2 Get_Permanent_Parameter 4-8
4.2.1.3 Write_Parameter 4-9
4.2.1.4 Read_Parameter 4-9