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2-1

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

Interface to the User Program in the

S7-200 CPU

This chapter explains how the CP 243-2 is addressed. You will learn the

significance of the data in the digital and in the analog module and you will learn

how to access the analog inputs and outputs.

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 149 150

AS-Interface 1
Safety Guidelines 2
Qualified Personnel 2
Correct Usage 2
Trademarks 2
Purpose of the Manual 3
Requirements 3
Diskette with Sample Programs 3
Contents 5
Instructions 9
C79000-G8976-C142/02 10
1.2 Uses of the Module 11
Components Supplied 12
1.4 Installing the Module 14
Figure 1-2 15
1.6 Terminal Block 16
1.7 Modes of the CP 243-2 18
Meaning of the LEDs 19
SET Button 19
1.8.1 Status Display 20
1.8.2 Slave Display 22
Example of a Slave Display 23
Configuration Mode 24
Protected Mode 24
Preparing to Configure 25
Configuring 25
S7-200 CPU 27
2.1 Overview 28
Analog Module 29
Address Areas 30
Examples 30
Status/error information 33
Control of the CP 33
Bank selection 33
Figure 2-2 33
Range of Values 34
Meaning for the User Program 35
Structure of the Status Byte 36
Description of the Bits 36
Structure of the Control Byte 37
Principle 42
Advantage 42
Access in the User Program 42
2.5.1 Analog Input Area 44
Banks 16–30: Reserved area 45
Banks 48–63: Reserved area 46
2.5.2 Analog Output Area 47
Access to the Binary Values 50
Analog Input Area of the CP) 51
Analog Output Area of the CP) 51
input bytes 54
output bytes16 54
Data Access with STEP 7 Micro 55
Access to the Analog Values 56
Special Situations 62
User Program 65
4.1 Signaling 66
Table 4-1 67
Command Sequence 71
Overview 75
Command Status 79
5.2.1 Set_Permanent_Parameter 81
5.2.2 Get_Permanent_Parameter 82
5.2.3 Write_Parameter 83
5.2.4 Read_Parameter 84
5.2.5 Store_Actual_Parameters 85
Purpose of the Command 88
5.2.10 Set_Extended_LPS 90
5.2.11 Set_Offline_Mode 91
5.2.12 Select_Autoprogramming 92
5.2.13 Set_Operation_Mode 93
5.2.15 Get_AS-i_Slave_Status 95
Meaning of the Flags 99
Command Interface 100
5.2.21 Read_Version_ID 115
5.2.22 Read_AS-i_Slave_ID 116
5.2.23 Read_AS-i_Slave_ID1 117
5.2.25 Read_AS-i_Slave_ID2 119
5.2.26 Read_AS-i_Slave_I/O 120
5.2.27 Get_LPF 121
Programming 130
Conformance Statement (PICS) 135
References 139
Order numbers 140
Notes on the CE Mark 141
SIMATIC Training Center 143
Further Support 144
Glossary 145

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