Siemens SIMATIC S7-1500 Manual page 54

Article number
Flag
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Data blocks
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Local data
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Address area
Number of IO modules
I/O address area
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per integrated IO subsystem
per CM/CP
Subprocess images
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Hardware configuration
Number of distributed IO systems
Number of DP masters
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Number of IO Controllers
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Rack
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PtP CM
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CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Equipment Manual, 07/2021, A5E40882737-AB
Size, max.
Number of clock memories
Retentivity adjustable
Retentivity preset
per priority class, max.
Inputs
Outputs
–
Inputs (volume)
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Outputs (volume)
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Inputs (volume)
–
Outputs (volume)
Number of subprocess images, max.
integrated
Via CM
integrated
Via CM
Modules per rack, max.
Number of lines, max.
Number of PtP CMs
Technical specifications
6ES7518-4AX00-1AB0
16 kbyte
8; 8 clock memory bit, grouped into one clock
memory byte
Yes
No
64 kbyte; max. 16 KB per block
16 384; max. number of modules / submodules
32 kbyte; All inputs are in the process image
32 kbyte; All outputs are in the process image
32 kbyte; max. 32 KB via X1; max. 8 KB via X2 or
X4
32 kbyte; max. 32 KB via X1; max. 8 KB via X2 or
X4
8 kbyte
8 kbyte
32
64; 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)
1
8; A maximum of 8 CMs/CPs (PROFIBUS,
PROFINET, Ethernet) can be inserted in total
2
8; A maximum of 8 CMs/CPs (PROFIBUS,
PROFINET, Ethernet) can be inserted in total
32; CPU + 31 modules
1
the number of connectable PtP CMs is only limited
by the number of available slots
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