System Manual S7-200 Programmable Controller A5E00307987-01; Edition 06/2004; This manual has the or

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Specifications	System Manual S7-200 Programmable Controller A5E00307987-01; Edition 06/2004; This manual has the order number:6ES7298-8FA24-8BH0 A&D AS SM ID
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S7-200ProgrammableControllerSystemManual 236 AsshowninTable7-12,theS7-200CPUorEM277provideaspecificnumberofconnections. Eachp

Specifications	System Manual S7-200 Programmable Controller A5E00307987-01; Edition 06/2004; This manual has the order number:6ES7298-8FA24-8BH0 A&D AS SM ID
Outline	Title Preface Contents 1 Product Overview What’s New? S7- 200 CPU S7- 200 Expansion Modules STEP 7- Micro/WIN Programming Package Communications Options Display Panels 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features Guidelines for Designing a Micro PLC System Basic Elements of a Program Using STEP 7- Micro/WIN to Create Your Programs Choosing Between the SIMATIC and IEC 1131- 3 Instruction Sets Understanding the Conventions Used by the Program Editors Using Wizards To Help You Create Your Control Program Handling Errors in the S7- 200 Assigning Addresses and Initial Values in the Data Block Editor Using the Symbol Table for Symbolic Addressing of Variables Using Local Variables Using the Status Chart to Monitor Your Program Creating an Instruction Library Features for Debugging Your Program 12 Using the Modbus Protocol Library Requirements for Using the Modbus Protocol Initialization and Execution Time for the Modbus Protocol Modbus Addressing Using the Modbus Slave Protocol Instructions Instructions for the Modbus Slave Protocol 4 PLC Concepts Understanding How the S7- 200 Executes Your Control Logic Accessing the Data of the S7- 200 Understanding How the S7- 200 Saves and Restores Data Selecting the Operating Mode for the S7- 200 CPU Using the S7- 200 Explorer Features of the S7- 200 5 Programming Concepts, Conventions, and Features 6 S7-200 Instruction Set 7 Communicating over a Network 8 Hardware Troubleshooting Guide and Software Debugging Tools 9 Open Loop Motion Control with the S7- 200 10 Creating a Program for the Modem Module 11 Using the USS Protocol Library to Control a MicroMaster Drive 12 Using the Modbus Protocol Library 13 Using Recipes 14 Using Data Logs 15 PID Auto-Tune and the PID Tuning Control Panel Appendices Index Remarks Form S7-200 Memory Ranges and Features
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Content	S7-200ProgrammableControllerSystemManual 236 AsshowninTable7-12,theS7-200CPUorEM277provideaspecificnumberofconnections. Eachport(Port0andPort1)ofanS7-200CPUsupportsuptofourseparateconnections.(This allowsamaximumofeightconnectionsfortheS7-200CPU.)ThisisinadditiontothesharedPPI connection.AnEM277supportssixconnections. Table7-12CapabilitiesoftheS7-200CPUandEM277Modules ConnectionPointBaudRateConnectionsSTEP7-Micro/WINProtocolProfile Selections S7-200CPUPort09.6kbaud, 19.2kbaud,or 187.5kbaud 4PPI,PPIAdvanced,MPI,andPROFIBUS1 Port19.6kbaud, 19.2kbaud,or 187.5kbaud 4PPI,PPIAdvanced,MPI,andPROFIBUS1 EM277Module9.6kbaudto 12Mbaud 6permodulePPIAdvanced,MPI,andPROFIBUS 1IfaCPcardisusedtoconnectSTEP7-Micro/WINtotheS7-200CPUthroughPort0orPort1,youcanselect eitherMPIorDPPROFIBUSprofilesonlywhentheS7-200deviceisconfiguredasaslave. WorkingwithComplexNetworks FortheS7-200,complexnetworkstypicallyhavemultipleS7-200mastersthatusetheNetwork Read(NETR)andNetworkWrite(NETW)instructionstocommunicatewithotherdevicesonaPPI network.Complexnetworkstypicallypresentspecialproblemsthatcanblockamasterfrom communicatingwithaslave. Ifthenetworkisrunningatalowerbaudrate(suchas9.6kbaudor19.2kbaud),theneachmaster completesthetransaction(readorwrite)beforepassingthetoken.At187.5kbaud,however,the masterissuesarequesttoaslaveandthenpassesthetoken,whichleavesanoutstanding requestattheslave. Figure7-33showsanetworkwithpotentialcommunicationsconflicts.Inthisnetwork,Station1, Station2,andStation3aremasters,usingtheNetworkReadorNetworkWriteinstructionsto communicatewithStation4.TheNetworkReadandNetworkWriteinstructionsusePPIprotocol soalloftheS7-200ssharethesinglePPIconnectioninStation4. Inthisexample,Station1issuesarequestto Station4.Forbaudratesabove19.2kbaud, Station1thenpassesthetokentoStation2.If Station2attemptstoissuearequesttoStation4, therequestfromStation2isrejectedbecausethe requestfromStation1isstillpresent.Allrequests toStation4willberejecteduntilStation4completes theresponsetoStation1.Onlyaftertheresponse hbltdthti Station4Slave Station1MasterStation2MasterStation3Master hasbeencompletedcananothermasterissuea requesttoStation4.Figure7-33CommunicationsConflict Toavoidthisconflictforthecommunicationsporton Station4,considermakingStation4theonlymaster onthenetwork,asshowninFigure7-34.Station4 thenissuestheread/writerequeststotheother S7-200s. Notonlydoesthisconfigurationensurethatthereis noconflictincommunications,butitalsoreduces theoverheadcausedbyhavingmultiplemasters Station1SlaveStation2SlaveStation3Slave Station4Master theoverheadcausedbyhavingmultiplemasters andallowsthenetworktooperatemoreefficiently.Figure7-34AvoidingConflict
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System Manual S7-200 Programmable Controller A5E00307987-01; Edition 06/2004; This manual has the order number:6ES7298-8FA24-8BH0 A&D AS SM ID

System Manual S7-200 Programmable Controller A5E00307987-01; Edition 06/2004; This manual has the order number:6ES7298-8FA24-8BH0 A&D AS SM ID