Siemens SIMATIC S7-1500 Equipment Manual page 15

The higher the risks and costs of a production downtime, the more worthwhile the use of a
redundant system. The avoidance of production downtimes compensates for the generally
higher investment costs.
Table 3-2 Redundant CPUs
CPU Performance segment
CPU 1513R-1 ­ Redundant CPU for smaller
PN to mid-range applications
CPU Redundant CPU for mid-
1515R-2 PN range to large applications
CPU Redundant CPU for demand­
1517H-3 PN ing applications and commu­
nication tasks
CPU Fail-safe and redundant CPU
1518HF-4 PN for demanding applications
and communication tasks
Performance segments of compact CPUs
The compact CPUs can be used for smaller to mid-range applications and have an integrated
analog and digital on-board I/O as well as integrated technology functions.
Table 3-3 Compact CPUs
CPU Performance segment
CPU 1511C-1 PN Compact CPU for small to
mid-range applications
CPU 1512C-1 PN Compact CPU for mid-
range applications
The following table shows the specific properties of the Compact CPUs.
Integrated analog inputs/outputs
Integrated digital inputs/outputs
High-speed counters
Frequency meters
Period duration measurement
Pulse width modulation (PWM output)
Pulse Train Output (PTO output)
Frequency output
CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0)
Equipment Manual, 11/2022, A5E36285525-AD
PROFIBUS PROFINET
interfaces IO RT/IRT IO RT inter­
interfaces
-- 1
-- 1
-- 1
-- 1
PROFIBUS PROFINET
interfaces IO RT/IRT IO RT inter­
interfaces
-- 1
-- 1
CPU 1511C‑1 PN
5 inputs/2 outputs
16 inputs/16 outputs
6
6 (max. 100 kHz)
6 channels
Max. 4 (up to 100 kHz)
Max. 4 (up to 100 kHz)
Up to 100 kHz
PROFINET Basic
PROFINET
face functional­
ity
-- --
-- 1
-- 1
-- 2
PROFINET Basic
PROFINET
face functional­
ity
-- --
-- --
CPU 1512C‑1 PN
5 inputs/2 outputs
32 inputs/32 outputs
6 (max. 100 kHz)
6 channels
Max. 4 (up to 100 kHz)
Max. 4 (up to 100 kHz)
Up to 100 kHz
Product overview
3.2 Application
Work Processing
memory time for bit
operations
3.1 MB 50 ns
5.5 MB 20 ns
10 MB 4 ns
69 MB 4 ns
Work memory Pro­
cessing
time for
bit opera­
tions
1.175 MB 60 ns
1.25 MB 48 ns
6
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