CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
251
Variants of the system expansion card
Use of the system expansion card
The system expansion card (SEC) is inserted in a slot at the back of the CPU.
The SEC is used to scale the CPU 410 to correspond the maximum loadable process
objects. More detailed information about the scaling concept can be found in the section
Scaling and licensing (scaling concept) (Page 32).
Operation of the CPU is not possible without an SEC. If no valid SEC is detected, the
corresponding CPU does not start up.
If an error occurs in redundant mode during access to the SEC of a CPU, this triggers a loss
of synchronization and a startup block prevents another automatic link-up. You cannot
operate two CPUs 410 redundantly with two different SECs.
System Expansion Card for CPU 410-5H
SECs with the following number of PO are available for the CPU 410-5H:
● 0
You must store the required number of POs on this SEC before the first use.
● 100
● 500
● 1000
● 1600
● 2k+ (unlimited)
System Expansion Card for CPU 410E
An SEC with the following number of PO is available for the CPU 410E:
● 200
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