Replacing A Defective Simatic Memory Card - Siemens Simatic S7-1500R System Manual

Maintenance
11.1 Replacing components of the S7-1500R/H redundant system
11.1.5

Replacing a defective SIMATIC memory card

Initial situation
The SIMATIC memory card of a CPU is defective. System diagnostics reports a system
error. The CPU affected has switched to the STOP operating state.
The S7-1500R/H redundant system is in the RUN-Solo system state.
Requirement
● Read the information in the section Checking before replacing components (Page 257).
● The new SIMATIC memory card must have sufficient memory for the project.
Procedure
Proceed as follows to replace a defective SIMATIC memory card:
1. Replace the SIMATIC memory card in the CPU in STOP.
2. Switch the CPU to the RUN operating state.
Result
1. The CPU with the replaced SIMATIC memory card runs SYNCUP. SYNCUP transfers the
project data from the primary to the backup CPU.
2. The CPU switches to the RUN-Redundant operating state and operates as backup CPU.
The redundant system is in the RUN-Redundant system state again.
Reference
If there is not enough memory space on a SIMATIC memory card, the card can be replaced
during operation. You will find the procedure, the response of the redundant system and
other information on the SIMATIC memory card in the function manual Structure and use of
the CPU memory (https://support.industry.siemens.com/cs/de/de/view/59193101/en).
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S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA