Siemens SIMATIC S7-1500 System Manual page 9

Table of contents
10 Basics of program execution ............................................................................................................. 317
10.1 Programming the S7-1500R/H .......................................................................................... 317
10.2 Restrictions ...................................................................................................................... 321
10.3 Events and OBs ................................................................................................................ 323
10.4 Special instructions for S7-1500R/H redundant systems .................................................... 329
10.4.1 Disabling/enabling SYNCUP with the RH_CTRL instruction ................................................. 329
10.4.2 Determining the primary CPU with "RH_GetPrimaryID" ...................................................... 332
10.5 Asynchronous instructions ............................................................................................... 333
11 Protection .......................................................................................................................................... 341
11.1 Overview of the protection functions ............................................................................... 341
11.2 Protection of confidential configuration data .................................................................... 341
11.3 Local user management ................................................................................................... 342
11.3.1 Useful information on the local user administration and access control ............................. 342
11.3.2 Advantages of the local user administration and access control ........................................ 345
11.3.3 From the access level to the function right of users .......................................................... 347
11.3.4 Information about compatibility ....................................................................................... 350
11.4 Configuring access protection for the CPU ........................................................................ 350
11.5 Using the display to set additional password protection .................................................... 354
11.6 Using the user program to set additional access protection ............................................... 354
11.7 Know-how protection ...................................................................................................... 355
11.8 Protection by locking the CPU .......................................................................................... 359
12 Commissioning .................................................................................................................................. 360
12.1 Overview ......................................................................................................................... 360
12.2 Check before powering on for the first time ..................................................................... 361
12.3 Commissioning procedure ............................................................................................... 362
12.3.1 Removing/plugging in SIMATIC memory cards .................................................................. 363
12.3.2 First power-on of the CPUs ............................................................................................... 366
12.3.3 CPU pairing ...................................................................................................................... 366
12.3.4 Redundancy IDs ............................................................................................................... 368
12.3.5 Downloading projects to the CPUs.................................................................................... 372
12.4 Operating and system states ............................................................................................ 380
12.4.1 Overview ......................................................................................................................... 380
12.4.2 STARTUP operating state .................................................................................................. 383
12.4.3 STOP operating state ....................................................................................................... 386
12.4.4 SYNCUP operating state ................................................................................................... 387
12.4.5 RUN operating states ....................................................................................................... 387
12.4.6 SYNCUP system state ....................................................................................................... 388
12.4.7 System and operating state transitions ............................................................................. 400
12.4.8 Loss of redundancy CPU ................................................................................................... 411
12.4.9 Displaying and changing the system state ........................................................................ 415
12.5 CPU memory reset ........................................................................................................... 417
12.5.1 Automatic memory reset ................................................................................................. 418
8
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF