Table of contents
Automation system
System Manual, 01/2023, A5E03461182-AK
7
12.5 Operating modes ............................................................................................................. 264
12.5.1 STARTUP mode ................................................................................................................ 264
12.5.2 STOP mode ...................................................................................................................... 267
12.5.3 RUN mode ....................................................................................................................... 267
12.5.4 Operating mode transitions ............................................................................................. 268
12.6 CPU memory reset ........................................................................................................... 271
12.6.1 Automatic memory reset.................................................................................................. 272
12.6.2 Manual memory reset ...................................................................................................... 272
12.7 Backing up and restoring the CPU configuration ............................................................... 274
12.8 Time synchronization ....................................................................................................... 278
12.8.1 Example: Configuring the IP address of the NTP server in STEP 7 or setting it in the user
program .......................................................................................................................... 280
12.9 Identification and maintenance data ................................................................................ 282
12.9.1 Reading out and entering I&M data .................................................................................. 282
12.9.2 Record structure for I&M data .......................................................................................... 285
12.9.3 Example: Read out firmware version of the CPU with Get_IM_Data ................................... 287
12.10 Shared commissioning of projects .................................................................................... 289
13 CPU display ........................................................................................................................................ 290
14 Maintenance ...................................................................................................................................... 299
14.1 Removing and inserting I/O modules ................................................................................ 299
14.2 Replacing the display/front cover ...................................................................................... 300
14.3 Replacement of I/O modules and front connectors ............................................................ 303
14.3.1 Coding element on the I/O module and on the front connector ......................................... 303
14.3.2 Replacing an I/O module .................................................................................................. 306
14.3.3 Replacing a front connector ............................................................................................. 307
14.4 Replacing the coding element at the power connector of the system power supply and
load current supply .......................................................................................................... 310
14.5 Firmware update ............................................................................................................. 312
14.6 Reset to factory settings ................................................................................................... 319
14.6.1 Resetting the CPU to factory settings ................................................................................ 319
14.6.2 Resetting interface module (PROFINET IO) to factory settings ........................................... 324
14.7 Fault reactions with fail-safe modules .............................................................................. 325
14.8 Maintenance and repair ................................................................................................... 327
15 Test and service functions ................................................................................................................. 328
15.1 Test functions .................................................................................................................. 328
15.2 Reading out/saving service data ....................................................................................... 333
16 Technical specifications ..................................................................................................................... 336
16.1 Standards, approvals and safety instructions .................................................................... 336
16.2 Electromagnetic compatibility ..........................................................................................
347
16.3 Electromagnetic compatibility of fail-safe modules ........................................................... 349
16.4 Shipping and storage conditions ...................................................................................... 349
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