Siemens Simatic S7-300 CP 341

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CP 341 Point-to-Point Communication, Installation and Parameter Assignment

Manual, 09/2008, A5E02191071-01 11

7 Start-up Characteristics and Operating Mode Transitions of the CP 341............................................... 181

7.1 Operating Modes of the CP 341 . ..............................................................................................181

7.2 Startup Characteristics of the CP 341 . .....................................................................................182

7.3 Behavior of the CP 341 on Operating Mode Transitions of the CPU . ......................................184

8 Diagnostics with the CP 341. .................................................................................................................. 185

8.1 Diagnostics Functions of the CP 341. .......................................................................................185

8.1.1 Diagnostics via the display elements of the CP 341. ................................................................186

8.1.2 Diagnostics Messages of the Function Blocks .........................................................................187

8.1.3 Error Numbers in the Response Message Frame . ...................................................................200

8.1.4 Diagnostics via the diagnostic buffer of the CP 341 .................................................................201

8.1.5 Diagnostic Interrupt...................................................................................................................203

9 Programming Example for Standard Function Blocks. ........................................................................... 205

9.1 General Information ..................................................................................................................205

9.2 Device Configuration.................................................................................................................206

9.3 Settings .....................................................................................................................................207

9.4 Blocks Used ..............................................................................................................................208

9.5 Installation, Error Messages ................209 9.6 Activation, Start-Up Program and Cyclic Program.

..........210

A Technical Specifications . ........................................................................................................................ 213

A.1 Technical Specifications of the CP 341 .............................................213 A.2 Transmission Rates .

..........218

B Connecting cables . ................................................................................................................................. 221

B.1 RS 232C Interface of the CP 341-RS 232C .............................................................................221

B.2 20 mA TTY interface on the CP 341-20mA-TTY .

228 B.3 X27 (RS 422/485) Interface of the CP 341-RS 422/485. ...................................................235

C Accessories and order numbers . ............................................................................................................ 239

D Literature on SIMATIC S7. ......................................................................................................................

241

D.1 Literature on SIMATIC S7. ........................................................................................................241

Glossary .................................................................................................................................................. 243

Index........................................................................................................................................................ 249

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