Siemens SIMATIC S7-400 CP 440 Installation And Parameter Assignment page 8

Table of contents
5 Configuring and Parameter Assignment the CP 440 ................................................................................ 65
5.1 Assigning parameters to the CP 440 . ........................................................................................ 65
5.2 Installing the Programming Interface . ........................................................................................ 66
5.3 Parameters for the Communications Protocols . ........................................................................ 67
5.4 Configuration data...................................................................................................................... 68
5.4.1 Introduction ................................................................................................................................ 68
5.4.2 Basic Parameters of the CP 440. ............................................................................................... 68
5.4.3 Configuration Data of the ASCII Driver . ..................................................................................... 70
5.4.4 Configuration Data of the 3964(R) Procedure . .......................................................................... 76
5.5 Managing the Parameter Data . .................................................................................................. 81
5.6 Firmware updates . ..................................................................................................................... 82
5.6.1 Subsequent Loading of Firmware Updates. ............................................................................... 82
5.6.2 Viewing the Firmware Version . .................................................................................................. 84
6 Communication via Function Blocks . ........................................................................................................ 85
6.1 Overview of the Function Blocks. ............................................................................................... 86
6.2 Notes on Program Structure . ..................................................................................................... 88
6.3 Using the Function Blocks. ......................................................................................................... 89
6.3.1 S7 Transmits Data to a Communication Partner, 10 SEND_440 FB. ........................................ 90
6.3.2 S7 Receives Data from a Communication Partner, 9 RECV_440 FB . ...................................... 94
6.3.3 Deleting the Receive Buffer (11 "RES_RECV" FB) . .................................................................. 98
6.4 Programming the Function Blocks . .......................................................................................... 101
6.4.1 General Information on Data Block Assignment. ..................................................................... 101
6.4.2 Supplying the block parameters. .............................................................................................. 103
6.5 General Information on Program Processing. .......................................................................... 107
6.6 Technical Specifications of the Function Blocks . ..................................................................... 108
7 Startup Characteristics and Operating Mode Transitions of the CP 440 . ............................................... 111
7.1 Operating Modes of the CP 440 . ............................................................................................. 111
7.2 Startup Characteristics of the CP 440. ..................................................................................... 112
7.3 Behavior of the CP 440 on Operating Mode Transitions of the CPU. ...................................... 113
7.4 Behavior of the Sender Line Drivers of the Serial Interface During Particular Operating
Modes of the CP . .................................................................................................................... 114
8 Diagnostics with the CP 440 . .................................................................................................................. 115
8.1 Diagnostics Functions of the CP 440. ...................................................................................... 115
8.2 Diagnostics via the display elements of the CP 440. ............................................................... 116
8.3 Diagnostics Messages of the Function Blocks. ........................................................................ 117
8.4 Diagnostics via the diagnostic buffer of the CP 440 . ............................................................... 125
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Point-to-point connection CP 440 Installation and Parameter Assignment
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Manual, 09/2007, A5E00057742-03