Siemens Simatic S7-400

SIMATIC S7 - an Overview
1-5
Automation System S7-400 Configuration and Use
A5E0044271 1-02
Special Applications
The following SIMATIC S7-400 versions are available for special applications:
• S7-400F, with CPU 416-2F for fail-safe applications.
• The fault-tolerant S7-400H, with CPUs 414-4H and 417-4H for fail-safe
applications. As the S7-400HF, this can also be used for fault-tolerant
applications.
• WinAC Slot, S7-400 CPUs as PC plug-in cards for PC-based applications.
Performance Characteristics
Table 1-1 lists a few of the performance characteristics of the automation systems,
which may make it easier to decide if a system the right one for you.
Table 1-1 Performance characteristics of the automation systems, as of 06/05
Performance Characteristics
S7-300 S7-400 WinAC Slot
Maximum user memory
for approx. instructions
512 KB
170 K
20 MB
6.7 M
3.2 MB
1.1 M
Execution times
• Bit operations
• Word operations
• Fixed-point arithmetic
• Floating-point arithmetic
0.1 µs
0.1 µs
0.1 µs
0.6 µs
0.03 µs
0.03 µs
0.03 µs
0.09 µs
0.04 µs
0.04 µs
0.04 µs
0.12 µs
Adress areas Inputs/outputs) 8 KB/8 KB 16 KB/16 KB 16 KB/16 KB
Maximum digital inputs/outputs 65536/65536 131072/131072 via PROFIBUS DP
131073/131073
Maximum analog inputs/outputs 4096/4096 8192/8192 via PROFIBUS DP
8192/8192
Expansions with maximum configuration 4 expansion
devices
21 expansion
devices
-
Maximum space between modules 30 m 605 m -
Distributed I/O available Yes Yes Yes
Number of DP masters
• integrated
• via interface modules
• via CP
2
-
4
4
2
10
2
-
-
Networking via integrated interfaces or
via CP
MPI
PROFIBUS DP
PROFINET/
Industrial Ethernet
MPI
PROFIBUS DP
PROFINET/
Industrial Ethernet
MPI
PROFIBUS DP
Industrial Ethernet