Siemens Simatic S7-400 - Page 24

CPUs of the S7-400
2-8
Automation System S7-400 Configuration and Use
A5E0044271 1-02
Table 2-3 CPU features of the S7-400H, continued
CPU 417-4H414-4H
Execution times
• Bit operations
• Word operations
• Fixed-point arithmetic
• Floating-point
arithmetic
0.06 µs
0.06 µs
0.06 µs
0.18 µs
0.03 µs
0.03 µs
0.03 µs
0.09 µs
Memory bits, timers,
counters
• Memory bits
• S7 timers / S7
counters
• IEC timers / IEC
counters
8KB
2048/2048
SFB/SFB
16 KB
2048/2048
SFB/SFB
Structure
• Number
Expansion devices
• Number
DP master via CP
• Number FM
• Number CP 441
21
maximum 10
limited by number of slots and number of connections
limited by number of connections, maximum 30
MPI/DP interface
• DP slaves
• Transmission rate
maximum 32
up to 12 Mbps
DP interface
• Number
• DP slaves
• Transmission rate
1
96 each
up to 12 Mbps
1
125 each
up to 12 Mbps
I/O address area
• Total address area
• Process image
• Digital channels
• Analog channels
8KB/8KB
8KB/8KB
65536/65536
4096/4096
16 KB / 16 KB
16 KB / 16 KB
131072/131072
8192/8192