Siemens SIMATIC ET 200AL, System Manual

Page: 1134 / 2255

Table of contents
Communication
Function Manual, 05/2021, A5E03735815-AJ
13
9.3.7.7 Summarizing diagnostics ................................................................................................. 314
9.4 Using the S7-1500 CPU as an OPC UA client ..................................................................... 316
9.4.1 Overview and requirements ............................................................................................. 316
9.4.2 Useful information about the client instructions ............................................................... 317
9.4.3 Number of client instructions that can be used simultaneously ......................................... 319
9.4.4 Example configuration for OPC UA ................................................................................... 320
9.4.5 Creating client interfaces ................................................................................................. 322
9.4.6 Determine server interface online .................................................................................... 331
9.4.7 Using multilingual texts ................................................................................................... 336
9.4.8 Rules for the access to structures ..................................................................................... 338
9.4.9 Using connection parameter assignment .......................................................................... 339
9.4.9.1 Creating and configuring connections .............................................................................. 339
9.4.9.2 Handling of the client certificates of the S7-1500 CPU ...................................................... 344
9.4.9.3 User authentication ......................................................................................................... 347
9.4.9.4 Using a configured connection ......................................................................................... 348
9.5 Tips and recommendations .............................................................................................. 354
9.5.1 Rules for subscriptions ..................................................................................................... 355
9.5.2 Rules for the user program ............................................................................................... 356
9.5.3 Master copies for OPC UA communication ........................................................................ 357
10 Addressing via DHCP ......................................................................................................................... 359
10.1 Principle of address assignment via DHCP ......................................................................... 361
10.2 DHCP with DNS ................................................................................................................ 363
10.3 Activate DHCP .................................................................................................................. 368
10.4 Configuring the client ID .................................................................................................. 368
10.5 Get addresses of the DNS servers via DHCP ....................................................................... 370
10.6 Get addresses of the NTP servers via DHCP ....................................................................... 370
10.7 Obtain host and domain name via DHCP .......................................................................... 371
11 Routing .............................................................................................................................................. 372
11.1 Overview of the routing mechanisms of S7-1500 CPUs ..................................................... 372
11.2 S7 routing ....................................................................................................................... 373
11.3 IP forwarding ................................................................................................................... 378
11.4 Data record routing.......................................................................................................... 385
11.5 Virtual interface for IP-based applications ......................................................................... 387
12 Connection resources ........................................................................................................................ 391
12.1 Connection resources of a station .................................................................................... 391
12.2 Allocation of connection resources ................................................................................... 395
12.3 Display of the connection resources ................................................................................. 399
13 Diagnostics and fault correction ........................................................................................................ 403
13.1 Connection diagnostics .................................................................................................... 403
13.2 Emergency address .......................................................................................................... 406