Additional password protection for F-configuration and F-program is set up for IT security.
Table 3-5 Fail-safe CPUs
CPU
Performance segment
CPU 1511F-1 PN Fail-safe CPU for small to
mid-range applications
CPU 1511TF-1 PN Fail-safe technology CPU
for small to mid-range
applications
CPU 1513F-1 PN Fail-safe CPU for mid-
range applications
CPU 1515F-2 PN Fail-safe CPU for mid-
range to large applica
tions
CPU 1515TF-2 PN Fail-safe technology CPU
for high-end applications
and communication tasks
CPU 1516F-3 PN/
Fail-safe CPU for
DP
demanding applications
and communication tasks
CPU 1516TF-3 P
Fail-safe technology CPU
N/DP
for high-end applications
and communication tasks
CPU 1517F-3 PN/
Fail-safe CPU for
DP
demanding applications
and communication tasks
CPU 1517TF-3 P
Fail-safe technology CPU
N/DP
for high-end applications
and communication tasks
CPU 1518F-4 PN/
Fail-safe CPU for high-
DP
performance applica
tions, demanding com
munication tasks and
very short reaction times
CPU 1518F-4 PN/
Fail-safe CPU for high-
DP MFP
performance applica
tions, demanding com
munication tasks, very
short reaction times and
C/C++ blocks for the user
program
* 50 MB of the integrated work memory is reserved for the function library of CPU runtime
CPU 1518-4 PN/DP (6ES7518-4AP00-0AB0)
Equipment Manual, 11/2022, A5E32334527-AE
PROFIBUS
PROFINET
interfaces
IO RT/IRT
IO RT inter
interfaces
--
1
--
1
--
1
--
1
--
1
1
1
1
1
1
1
1
1
1
1
1
1
PROFINET
Basic
PROFINET
face
functional
ity
--
--
--
--
--
--
1
--
1
--
1
--
1
--
1
--
1
--
1
1
1
1
Product overview
3.2 Application
Work memory
Pro
cessing
time for
bit opera
tions
1.95 MB
25 ns
1.95 MB
25 ns
3.4 MB
25 ns
6 MB
6 ns
6 MB
6 ns
10.5 MB
6 ns
10.5 MB
6 ns
11 MB
2 ns
11 MB
2 ns
69 MB
1 ns
119* MB
1 ns
17