
Table of contents
CP 154xSP-1
10 Operating Instructions, 12/2019, C79000-G8976-C426-05
4.4.3 Access to the Web server ...................................................................................................... 57
4.5 Time-of-day synchronization.................................................................................................. 57
4.6 DNS configuration.................................................................................................................. 59
4.7 Communication with the CPU ................................................................................................ 59
4.8 SNMP..................................................................................................................................... 61
4.9 Security (CP 1543SP-1)......................................................................................................... 62
4.9.1 Security user .......................................................................................................................... 62
4.9.2 Firewall................................................................................................................................... 62
4.9.2.1 Pre-check of messages by the MAC firewall. ........................................................................ 62
4.9.2.2 Settings for online security diagnostics and downloading to station with the firewall
activated................................................................................................................................. 63
4.9.2.3 Notation for the source IP address (advanced firewall mode)............................................... 63
4.9.2.4 Firewall settings for S7 connections via a VPN tunnel .......................................................... 64
4.9.3 Log settings - Filtering of the system events ......................................................................... 64
4.9.4 E-mail configuration ............................................................................................................... 64
4.9.5 VPN........................................................................................................................................ 65
4.9.5.1 VPN (Virtual Private Network)................................................................................................ 65
4.9.5.2 SINEMA Remote Connect ..................................................................................................... 67
4.9.5.3 Creating a VPN tunnel for S7 communication between stations ........................................... 70
4.9.5.4 VPN communication with SOFTNET Security Client (engineering station)........................... 71
4.9.5.5 Establishment of VPN tunnel communication between the CP and SCALANCE M ............. 72
4.9.5.6 CP as passive subscriber of VPN connections...................................................................... 72
4.9.6 SNMP..................................................................................................................................... 73
4.9.7 Certificate manager................................................................................................................ 74
4.10 Messages: E-mails (CP 1543SP-1) ....................................................................................... 75
5 Program blocks..................................................................................................................................... 81
5.1 Program blocks for OUC........................................................................................................ 81
5.2 Changing the IP parameters during runtime.......................................................................... 84
5.3 MODBUS blocks .................................................................................................................... 85
6 Diagnostics and maintenance ............................................................................................................... 87
6.1 Diagnostics options ................................................................................................................ 87
6.2 Online security diagnostics via port 8448 (CP 1542SP-1 IRC, CP 1543SP-1) ..................... 90
6.3 Diagnostics with SNMP.......................................................................................................... 90
6.4 Web server of the CPU .......................................................................................................... 93
6.5 Processing status of e-mails (CP 1543SP-1) ........................................................................ 95
6.6 Downloading firmware ........................................................................................................... 97
6.7 Module replacement .............................................................................................................. 98
7 Technical specifications ........................................................................................................................ 99
A Approvals ............................................................................................................................................101
B Dimension drawings.............................................................................................................................107
C Accessories .........................................................................................................................................109