Data Sheet

Retentivity
— adjustable
Yes
S7 times
● Number
2048
Retentivity
— adjustable
Yes
IEC timer
● Number
Any (only limited by the main memory)
Retentivity
— adjustable
Yes
Data areas and their retentivity
Retentive data area (incl. timers, counters, flags),
max.
128kbyte; In total; available retentive memory for bit memories,
timers, counters, DBs, and technology data (axes): 88 KB
Extended retentive data area (incl. timers, counters,
flags), max.
1Mbyte; When using PS 6 0W 24/48/60 V DC HF
Flag
● Number, max.
16kbyte
● Number of clock memories
8; 8 clock memory bit, grouped into one clock memory byte
Data blocks
● Retentivity adjustable
Yes
● Retentivity preset
No
Local data
● per priority class, max.
64kbyte; max. 16 KB per block
Address area
Number of IO modules 1024; max. number of modules / submodules
I/O address area
● Inputs
32kbyte; All inputs are in the process image
● Outputs
32kbyte; All outputs are in the process image
per integrated IO subsystem
— Inputs (volume)
8kbyte
— Outputs (volume)
8kbyte
per CM/CP
— Inputs (volume)
8kbyte
— Outputs (volume)
8kbyte
Subprocess images
● Number of subprocess images, max.
32
Hardware configuration
Number of distributed IO systems 32; A distributed I/O system is characterized not only by the
integration of distributed I/O via PROFINET or PROFIBUS
communication modules, but also by the connection of I/O via AS-
i master modules or links (e.g. IE/PB-Link)
Number of DP masters
6ES7511-1CK01-0AB0 Subject to change without notice
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09/14/2019 © Copyright Siemens