Siemens SIMATIC S7-400H System Manual page 6

Table of contents
5.5 Design and function of the memory cards .................................................................................. 65
5.6 Using memory cards ................................................................................................................... 67
5.7 Multi Point Interface MPI/DP (X1) ............................................................................................... 70
5.8 PROFIBUS DP interface (X2, X3)............................................................................................... 71
5.9 PROFINET interface (X5) ........................................................................................................... 71
5.10 Overview of the parameters for the S7-400H CPUs ................................................................... 74
6 Special functions of a CPU 41x-H............................................................................................................ 77
6.1 Security levels ............................................................................................................................. 77
6.2 Encrypting blocks ........................................................................................................................ 79
6.3 Resetting the CPU to the factory state........................................................................................ 81
6.4 Updating the firmware without a memory card ........................................................................... 83
6.5 Firmware update in RUN mode .................................................................................................. 85
6.6 Reading service data .................................................................................................................. 86
7 PROFIBUS DP ........................................................................................................................................ 87
7.1 CPU 41x-H as PROFIBUS DP master ....................................................................................... 87
7.1.1 DP address ranges of CPUs 41x-H ............................................................................................ 88
7.1.2 CPU 41xH as PROFIBUS DP master......................................................................................... 88
7.1.3 Diagnostics of a CPU 41xH operating as PROFIBUS DP master .............................................. 91
8 PROFINET .............................................................................................................................................. 95
8.1 Introduction ................................................................................................................................. 95
8.2 PROFINET IO systems ............................................................................................................... 97
8.3 Blocks in PROFINET IO.............................................................................................................. 99
8.4 System status lists for PROFINET IO ....................................................................................... 101
8.5 Device replacement without removable medium/programming device .................................... 103
8.6 Shared Device........................................................................................................................... 103
8.7 Media redundancy..................................................................................................................... 104
8.8 System redundancy .................................................................................................................. 106
9 Consistent data...................................................................................................................................... 111
9.1 Consistency of communication blocks and functions ............................................................... 112
9.2 Consistency rules for SFB 14 "GET" or read variable, and SFB 15 "PUT" or write variable.... 113
9.3 Consistent reading and writing of data from and to DP standard slaves/IO devices................ 113
10 Memory concept .................................................................................................................................... 117
10.1 Overview of the memory concept of S7-400H CPUs................................................................ 117
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System Manual, 03/2012, A5E00267695-11
S7-400H