Siemens SIMATIC ET 200AL - Page 1229

Table of contents
PROFIBUS with STEP 7 V13
6 Function Manual, 12/2014, A5E03775446-AC
4 Diagnostics ........................................................................................................................................... 57
4.1 Overview ................................................................................................................................ 57
4.2 Diagnostics using the display of the S7-1500 ........................................................................ 58
4.3 Diagnostics with the diagnostic repeater ............................................................................... 60
4.4 I&M data (Identification and Maintenance) ............................................................................ 61
5 Functions .............................................................................................................................................. 62
5.1 Isochronous mode ................................................................................................................. 62
5.1.1 What is isochronous mode? ................................................................................................... 62
5.1.2 Use of isochronous mode ...................................................................................................... 63
5.1.3 Isochronous applications ....................................................................................................... 64
5.1.4 Sequence of synchronization ................................................................................................. 65
5.1.5 Requirements for configuration .............................................................................................. 66
5.1.6 Configuring isochronous mode .............................................................................................. 67
5.1.7 Diagnostics and interrupt functions ........................................................................................ 70
5.1.8 Parameter settings for isochronous mode ............................................................................. 71
5.1.8.1 Viewing isochronous mode parameters ................................................................................. 71
5.1.8.2 Change parameters ............................................................................................................... 72
5.2 Acyclical data exchange ........................................................................................................ 74
5.3 SYNC/FREEZE groups .......................................................................................................... 75
5.4 Interrupts ................................................................................................................................ 77
5.5 Intelligent DP slaves (I-slaves) ............................................................................................... 78
5.5.1 I-slave functionality ................................................................................................................ 78
5.5.2 Data exchange with higher-level DP master .......................................................................... 81
5.5.3 Configuring an I-slave ............................................................................................................ 82
5.5.4 Configuring transfer areas ..................................................................................................... 84
5.5.5 Sample program..................................................................................................................... 85
5.5.6 Diagnostics and interrupt behavior ........................................................................................ 89
A Service & Support ................................................................................................................................. 91
Glossary ............................................................................................................................................... 94
Index .................................................................................................................................................... 99