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Counters, timers and their retentivity
S7 counter
•
Number
Retentivity
adjustable
–
IEC counter
•
Number
Retentivity
adjustable
–
S7 times
•
Number
Retentivity
adjustable
–
IEC timer
•
Number
Retentivity
adjustable
–
Data areas and their retentivity
Retentive data area (incl. timers, counters,
flags), max.
Flag
•
Size, max.
•
Number of clock memories
Data blocks
•
Retentivity adjustable
•
Retentivity preset
Local data
•
per priority class, max.
Address area
Number of IO modules
I/O address area
•
Inputs
•
Outputs
per integrated IO subsystem
Inputs (volume)
–
Outputs (volume)
–
Subprocess images
•
Number of subprocess images, max.
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 05/2021, A5E49868646-AA
6ES7518-4JP00-0AB0
2 048
Yes
Any (only limited by the main memory)
Yes
2 048
Yes
Any (only limited by the main memory)
Yes
768 kbyte; In total; available retentive memory for
bit memories, timers, counters, DBs, and technol-
ogy data (axes): 700 KB
16 kbyte
8; 8 clock memory bit, grouped into one clock
memory byte
Yes
No
64 kbyte; max. 16 KB per block
8 192; max. number of modules / submodules
32 kbyte; All inputs are in the process image
32 kbyte; All outputs are in the process image
16 kbyte
16 kbyte
32
Technical specifications
5.1 Technical specifications
35
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