Siemens S7-400 - Page 10

Table of contents
CP 443-1 Advanced
10 Equipment Manual, 03/2023, C79000-G8976-C256-07
5.4 Commissioning .................................................................................................................. 48
5.4.1 Commissioning .................................................................................................................. 48
5.4.2 CPLUG (configuration plug)................................................................................................ 49
5.4.3 Controlling the mode ......................................................................................................... 51
5.5 Disassembly ....................................................................................................................... 51
6 Configuration and operation ............................................................................................................... 53
6.1 Security recommendations................................................................................................. 53
6.2 Controlling the mode ......................................................................................................... 56
6.3 Effects of protection levels ................................................................................................. 57
6.4 Configuration in STEP 7...................................................................................................... 58
6.5 Interface configuration ...................................................................................................... 59
6.5.1 Network settings ............................................................................................................... 59
6.5.1.1 IP address assignment and communications path ............................................................... 59
6.5.1.2 Fast Ethernet with the PROFINET and gigabit interface ....................................................... 59
6.5.1.3 Transmission speed of the gigabit interface ........................................................................ 61
6.5.2 IP configuration and DHCP ................................................................................................. 62
6.5.2.1 S7 connections and DHCP .................................................................................................. 62
6.5.2.2 Address assignment via DHCP- gigabit interface ................................................................. 62
6.5.2.3 Restart after detection of a duplicate IP address in the network ........................................... 62
6.5.3 Unused PROFINET interface without BUS2F indicator .......................................................... 63
6.5.4 Using the CP as an IP router................................................................................................ 63
6.6 Port configuration with redundant partners ........................................................................ 63
6.7 PROFINET IO mode............................................................................................................. 64
6.7.1 How PROFINET IO devices start up in a large configuration ................................................. 64
6.7.2 Reduce the communication allocation reserved for PROFINET IO when operating
alongside other services. .................................................................................................... 64
6.7.3 Prioritized startup in PROFINET IO ....................................................................................... 64
6.7.4 IRT communication: Types of synchronization .................................................................... 65
6.7.5 Operating PROFINET IO devices with a current firmware version ......................................... 66
6.7.6 Shared device - using the router address ............................................................................ 66
6.8 Media redundancy ............................................................................................................. 67
6.9 Interface in the user program ............................................................................................. 67
6.9.1 Call interface for open communications services SEND/RECV............................................... 67
6.9.2 Programmed communication connections with IP_CONFIG................................................. 68
6.9.3 IP access protection with programmed communications connections ................................. 68
6.9.4 Programmed communications connections - assigning parameters to the ports .................. 69
6.9.5 Open TCP/IP communication .............................................................................................. 69
6.9.6 Recommendation for use with a high communications load ............................................... 70
6.10 Security ............................................................................................................................. 71
6.10.1 Settings for online security diagnostics and downloading to station with the firewall
activated ........................................................................................................................... 71
6.10.2 Using VPN - effects on communication ............................................................................... 72
6.10.3 Reloading firewall rules ...................................................................................................... 72
6.10.4 Activating IP access protection ........................................................................................... 72
6.10.5 Importing certificates for SMTP with STARTTLS or FTPS ....................................................... 72
6.10.6 Security and STEP 7 special diagnostics activated - configuration activities blocked ............. 73