Firmware Update - Siemens Simatic S7-1500R System Manual

Maintenance

11.4 Firmware update

11.4 Firmware update
Introduction
You use firmware files to update the firmware of the CPUs, displays and the IO devices (for
example for new functions). The retentive data is retained after the firmware has been
updated.
Note
CPUs operating in redundant mode
CPUs operating in redundant mode must have the same article number, function version and
firmware version.
For the replacement of components, the two CPUs operating in redundant mode must have
the same firmware version. Downgrades are therefore possible as well as updates.
Note
CPU downgrades and upgrades
You cannot upgrade a standard CPU or F-CPU to an R-CPU or H-CPU. You cannot
downgrade the firmware of an R/H-CPU to a standard or F-CPU either.
272
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA