Siemens SIMATIC S7-1500 System Manual page 8

Table of contents
8.9 Process images and process image partitions..................................................................... 212
8.9.1 Process image - overview.................................................................................................. 212
8.9.2 Updating process image partitions in the user program..................................................... 213
9 Basics of program execution.............................................................................................................. 215
9.1 Programming the S7-1500R/H........................................................................................... 215
9.2 Restrictions....................................................................................................................... 218
9.3 Events and OBs................................................................................................................. 220
9.4 Special instructions for S7-1500R/H redundant systems..................................................... 226
9.4.1 Disabling/enabling SYNCUP with the RH_CTRL instruction.................................................. 226
9.4.2 Determining the primary CPU with "RH_GetPrimaryID"....................................................... 229
9.5 Asynchronous instructions................................................................................................ 229
10 Protection........................................................................................................................................... 236
10.1 Overview of the protection functions................................................................................ 236
10.2 Protection of confidential configuration data..................................................................... 236
10.3 Configuring access protection for the CPU......................................................................... 236
10.4 Using the display to set additional password protection..................................................... 239
10.5 Using the user program to set additional access protection................................................ 240
10.6 Know-how protection....................................................................................................... 240
10.7 Protection by locking the CPU............................................................................................ 244
11 Commissioning................................................................................................................................... 245
11.1 Overview.......................................................................................................................... 245
11.2 Check before powering on for the first time...................................................................... 245
11.3 Commissioning procedure................................................................................................ 246
11.3.1 Removing/plugging in SIMATIC memory cards................................................................... 248
11.3.2 First power-on of the CPUs................................................................................................ 250
11.3.3 CPU pairing....................................................................................................................... 250
11.3.4 Redundancy IDs................................................................................................................ 252
11.3.5 Downloading projects to the CPUs..................................................................................... 256
11.4 Operating and system states............................................................................................. 263
11.4.1 Overview.......................................................................................................................... 263
11.4.2 STARTUP operating state................................................................................................... 266
11.4.3 STOP operating state......................................................................................................... 268
11.4.4 SYNCUP operating state.................................................................................................... 269
11.4.5 RUN operating states........................................................................................................ 269
11.4.6 SYNCUP system state........................................................................................................ 270
11.4.7 System and operating state transitions.............................................................................. 281
11.4.8 Loss of redundancy CPU.................................................................................................... 289
11.4.9 Displaying and changing the system state......................................................................... 293
11.5 CPU memory reset............................................................................................................ 294
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S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD