Siemens SIMATIC ET 200M Operating Instructions Manual page 9

7.7 Replace modules with the function "Change During Operation" ........................................ 111
7.8 Replacing the bus module ................................................................................................ 114
7.9 Exchanging fuses in digital output modules ...................................................................... 115
7.10 Updating the IM 153-x ..................................................................................................... 116
7.10.1 When should you update the IM 153-x? ............................................................................ 116
7.10.2 Update of the IM 153-1 / -2Ax0x ...................................................................................... 116
7.10.3 Update of the IM 153-2Bx00 ............................................................................................ 116
7.10.4 How to update the IM 153-2Bxx1 ..................................................................................... 120
7.11 Saving data and updating the IM 153-4 PN ....................................................................... 123
8 Functions ........................................................................................................................................... 128
8.1 Support for I/O modules with expanded input data ........................................................... 128
8.2 Time stamping the input signals with IM 153-2 ................................................................ 129
8.2.1 Principles ......................................................................................................................... 129
8.2.2 Functionalities ................................................................................................................. 131
8.2.2.1 Time stamp with 10 ms precision ..................................................................................... 131
8.2.2.2 Highly precise time stamp with 1 ms precision ................................................................. 133
8.2.2.3 Time synchronization for time stamping ........................................................................... 134
8.2.2.4 Time stamping in the redundant system ........................................................................... 137
8.2.3 Time stamping within the S7-400 .................................................................................... 139
8.2.3.1 With STEP 7 in customer applications ............................................................................... 139
8.2.3.2 With the PCS 7 system solution ........................................................................................ 139
8.2.4 Time stamping outside of S7-400 ..................................................................................... 141
8.2.4.1 Prerequisites .................................................................................................................... 141
8.2.4.2 Operating principle .......................................................................................................... 144
8.2.4.3 Brief introduction to commissioning the time stamping .................................................... 146
8.2.4.4 Time synchronization ....................................................................................................... 147
8.2.4.5 Configuring the time stamping ........................................................................................ 148
8.2.4.6 Structure of the process interrupt ..................................................................................... 151
8.2.4.7 Structure of the IM 153-2 messages ................................................................................. 153
8.2.4.8 Significance of special messages ...................................................................................... 155
8.2.4.9 Diagnosis for time stamping ............................................................................................. 156
8.3 Clock synchronization on the I/O bus ................................................................................ 158
8.4 Redundancy with IM 153-2 .............................................................................................. 160
8.5 System modification during operation .............................................................................. 163
8.5.1 System modification in a non-redundant system .............................................................. 163
8.5.2 System modification in a redundant system ..................................................................... 163
8.6 Isochrone mode ............................................................................................................... 166
8.6.1 What is Isochronous? ....................................................................................................... 166
8.6.2 Configuring the isochrone mode ...................................................................................... 169
8.7 Identification and maintenance data (I&M data) ............................................................... 173
8.7.1 I&M data for PROFIBUS DP ................................................................................................ 173
8.7.2 I&M data for PROFINET IO ................................................................................................ 177
8.8 Direct data exchange ....................................................................................................... 179
8.9 SNMP .............................................................................................................................. 180
9 Interrupt, error and system messages ............................................................................................... 181
ET 200M
Operating Instructions, 04/2022, EWA-4NEB7806006-09
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