Siemens Simantic S7-1500 - Counters, Timers, and Retentivity; Data Areas and Address Space

Technical specifications
CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0)
Manual, 12/2017, A5E36285525-AB
39
Article number
6ES7517-3TP00-0AB0
• 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.
768 kbyte; Available retentive memory for bit
memories, timers, counters, DBs, and technology
data (axes): 700 KB
Extended retentive data area (incl. timers,
counters, flags), max.
8 Mbyte; When using PS 60W 24/48/60V DC HF
Flag
• Number, max.
16 kbyte
• Number of clock memories
8; 8 clock memory bits, 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 16 384; max. number of modules / submodules