Siemens SIMATIC NET S7-400 Manual page 10

Table of contents
6.4 Effects of protection levels ..................................................................................................... 48
6.5 Configuration in STEP 7 ........................................................................................................ 49
6.6 Interface configuration ........................................................................................................... 49
6.6.1 Fast Ethernet .......................................................................................................................... 49
6.6.2 IP configuration ...................................................................................................................... 51
6.6.2.1 Points to note about IP configuration ..................................................................................... 51
6.6.2.2 Restart after detection of a duplicate IP address in the network ........................................... 51
6.6.3 Port configuration with redundant partners ............................................................................ 52
6.7 PROFINET IO mode .............................................................................................................. 52
6.7.1 How PROFINET IO devices start up in a large configuration ................................................ 52
6.7.2 Reduce the communication allocation reserved for PROFINET IO when operating
alongside other services. ....................................................................................................... 53
6.7.3 Prioritized startup in PROFINET IO ....................................................................................... 53
6.7.4 IRT communication: Types of synchronization ...................................................................... 54
6.7.5 Operating PROFINET IO devices with a current firmware version ........................................ 54
6.8 Media redundancy ................................................................................................................. 55
6.9 Interface in the user program ................................................................................................. 55
6.9.1 Call interface for open communications services SEND/RECV ............................................ 55
6.9.2 Programmed communication connections with IP_CONFIG ................................................. 55
6.9.3 IP access protection with programmed communications connections .................................. 56
6.9.4 Programmed communications connections - assigning parameters to the ports .................. 56
6.9.5 Open TCP/IP communication ................................................................................................ 57
6.10 Time-of-day synchronization .................................................................................................. 58
6.11 SNMP agent ........................................................................................................................... 58
6.12 Ping: Permitted length of ICMP packets ................................................................................ 60
6.13 Use in the H system ............................................................................................................... 61
7 Diagnostics and upkeep ........................................................................................................................ 63
7.1 Diagnostics options ................................................................................................................ 63
7.2 The CP as Web server ........................................................................................................... 63
7.3 Replacing older modules: module replacement / upgrading ................................................. 64
7.4 Replacing older modules: CPs with configurable data management .................................... 66
7.5 Replacing a module without a programming device .............................................................. 67
7.6 Loading new firmware ............................................................................................................ 68
7.7 Memory reset / reset to factory defaults ................................................................................ 69
8 Technical specifications ........................................................................................................................ 73
9 Certification ........................................................................................................................................... 75
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CP 443-1 (EX30)
Manual, 03/2019, C79000-G8976-C255-05