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FAQ  02/2014
CP340/CP341/CP440/CP441
Communication and
Programming
SIMATIC S7
http://support.automation.siemens.com/WW/view/en/ID 88867653

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Summarization of Contents

2 Introduction of Related Software and Applications
2.1 STEP7 Programming Software
Description of the STEP7 programming software used for PLC programming.
2.2 PtP Drive Software Package
Details on the PtP Param V5.1 drive software package for communication modules.
2.3 MODBUS Master Drive Software Package
Information about the MODBUS Master drive software package for specific modules.
2.4 MODBUS Slave Drive Software Package
Information about the MODBUS Slave drive software package for specific modules.
2.5 ModScan32 and ModSlave Software
Description of third-party software for testing MODBUS communication.
4 ASCII Protocol Communication
4.1 ASCII Protocol Communication of CP340
Details on configuring ASCII communication for the CP340 module.
4.1.1 CP340 Hardware Catalog
List of hardware components required for CP340 ASCII communication.
4.1.2 CP340 Configuration
Step-by-step guide for configuring ASCII communication on CP340.
4.1.3 CP340 Write Communication Program
Instructions for writing the communication program using function blocks for CP340.
4.1.4 CP340 Equipment Connection
Details on connecting the CP340 module for RS232C communication.
4.2 ASCII Protocol Communication of CP341
Details on configuring ASCII communication for the CP341 module.
4.2.1 CP341 Hardware Catalog
List of hardware components required for CP341 ASCII communication.
4.2.2 CP341 Configuration
Step-by-step guide for configuring ASCII communication on CP341.
4.2.3 CP341 Write Communication Program
Instructions for writing the communication program using function blocks for CP341.
4.2.4 CP341 Equipment Connection
Details on connecting the CP341 module for ASCII communication.
4.3 ASCII Protocol Communication of CP440
Details on configuring ASCII communication for the CP440 module.
4.3.1 CP440 Hardware Catalog
List of hardware components required for CP440 ASCII communication.
4.3.2 CP440 Configuration
Step-by-step guide for configuring ASCII communication on CP440.
4.3.3 CP440 Write Communication Program
Instructions for writing the communication program using function blocks for CP440.
4.3.4 CP440 Equipment Connection
Details on connecting the CP440 module for ASCII communication.
4.4 ASCII Protocol Communication of CP441
Details on configuring ASCII communication for the CP441 module.
4.4.1 CP441 Hardware Catalog
List of hardware components and interface types for CP441.
4.4.2 CP441 Configuration
Step-by-step guide for configuring ASCII communication on CP441.
4.4.3 CP441 Write Communication Program
Instructions for writing the communication program using function blocks for CP441.
4.4.4 CP441 Equipment Connection
Details on connecting the CP441 module for ASCII communication.
5 MODBUS RTU Protocol Communication
5.1 MODBUS Slave Communication of CP341
Configuring CP341 for MODBUS Slave communication.
5.1.1 CP341 Modbus Slave Hardware Catalog
List of hardware components required for CP341 Modbus Slave communication.
5.1.2 CP341 Modbus Slave Configuration
Step-by-step guide for configuring CP341 as a MODBUS Slave.
5.1.3 CP341 Modbus Slave Write Communication Program
Instructions for writing the communication program for CP341 Modbus Slave.
5.1.4 CP341 Modbus Slave Equipment Connection
Details on connecting the CP341 module for Modbus Slave communication.
5.1.5 CP341 Modbus Slave Communication Test
Steps for testing CP341 Modbus Slave communication using Modscan32.
5.2 MODBUS Master Communication of CP341
Configuring CP341 for MODBUS Master communication.
5.2.1 CP341 Modbus Master Hardware Catalog
List of hardware components required for CP341 Modbus Master communication.
5.2.2 CP341 Modbus Master Configuration
Step-by-step guide for configuring CP341 as a MODBUS Master.
5.2.3 CP341 Modbus Master Write Communication Program
Instructions for writing the communication program for CP341 Modbus Master.
5.2.4 CP341 Modbus Master Equipment Connection
Details on connecting the CP341 module for Modbus Master communication.
5.2.5 CP341 Modbus Master Communication Test
Steps for testing CP341 Modbus Master communication.
5.3 MODBUS Master Communication of CP441-2
Configuring CP441-2 for MODBUS Master communication.
5.3.1 CP441-2 Modbus Master Hardware Catalog
List of hardware components required for CP441-2 Modbus Master communication.
5.3.2 CP441-2 Modbus Master Configuration
Step-by-step guide for configuring CP441-2 as a MODBUS Master.
5.3.3 CP441-2 Modbus Master Write Communication Program
Instructions for writing the communication program for CP441-2 Modbus Master.
5.3.4 CP441-2 Modbus Master Equipment Connection
Details on connecting the CP441-2 module for Modbus Master communication.
5.3.5 CP441-2 Modbus Master Communication Test
Steps for testing CP441-2 Modbus Master communication.
5.4 MODBUS Slave Communication of CP441-2
Configuring CP441-2 for MODBUS Slave communication.
5.4.1 CP441-2 Modbus Slave Hardware Catalog
List of hardware components required for CP441-2 Modbus Slave communication.
5.4.2 CP441-2 Modbus Slave Configuration
Step-by-step guide for configuring CP441-2 as a MODBUS Slave.
5.4.3 CP441-2 Modbus Slave Write Communication Program
Instructions for writing the communication program for CP441-2 Modbus Slave.
5.4.4 CP441-2 Modbus Slave Equipment Connection
Details on connecting the CP441-2 module for Modbus Slave communication.
5.4.5 CP441-2 Modbus Slave Communication Test
Steps for testing CP441-2 Modbus Slave communication.

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