Data Sheet

● Number of delay alarm OBs
20
● Number of cyclic interrupt OBs
20; With minimum OB 3x cycle of 500 µs
● Number of process alarm OBs
50
● Number of DPV1 alarm OBs
3
● Number of isochronous mode OBs
1
● Number of technology synchronous alarm OBs
2
● Number of startup OBs
100
● Number of asynchronous error OBs
4
● Number of synchronous error OBs
2
● Number of diagnostic alarm OBs
1
Nesting depth
● per priority class
24
Counters, timers and their retentivity
S7 counter
● Number
2048
Retentivity
— adjustable
Yes
IEC counter
● Number
Any (only limited by the main memory)
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.
512kbyte; In total; available retentive memory for bit memories,
timers, counters, DBs, and technology data (axes): 472 KB
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
6ES7516-2PN00-0AB0 Subject to change without notice
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09/13/2019 © Copyright Siemens