| SIMATIC S7-400, CPU 414-3 768 KB WORKING MEMORY (384 KB CODE, 384 KB DATA) 1. INTERFACE MPI/DP 12 MBIT/S 2.IF PROFIBUS DP, 3.IF FOR IFM |
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CiR - Configuration in RUN |
CiR synchronization time, basic load | 100 ms |
CiR synchronization time, time per I/O slave | 120 µs |
Supply voltage |
24 V DC | Yes |
Input current |
from backplane bus 5 V DC, typ. | 1.5 A |
from backplane bus 5 V DC, max. | 1.6 A; typ. 1.5 A |
from backplane bus 24 V DC, max. | 450 mA; Total current consumption of the components connected to the MPI/DP interfaces, but no more than 150 mA per interface |
Power losses |
Power loss, typ. | 7.5 W |
Backup battery |
Battery operation | |
Backup current, typ. | 40 µA |
Backup current, max. | 420 µA |
Feeding of external backup voltage to CPU | 5 to 15 VDC |
Memory |
Data and program memory |
Data memory, max. | 384 kbyte |
Program memory, max. | 384 kbyte |
Work memory |
integrated | 768 kbyte |
expandable | No |
Load memory |
expandable FEPROM | Yes; with Memory Card (FLASH) |
expandable FEPROM, max. | 64 Mbyte |
integrated RAM, max. | 256 kbyte |
expandable RAM | Yes; with Memory Card (RAM) |
expandable RAM, max. | 64 Mbyte |
Backup |
present | Yes |
with battery | Yes; all data |
without battery | No |
CPU processing times |
for bit operations, min. | 0.1 µs |
for word operations, min. | 0.1 µs |
for fixed point arithmetic, min. | 0.1 µs |
for floating point arithmetic, min. | 0.6 µs |
CPU-blocks |
DB |
Number, max. | 4095; DB 0 reserved |
Size, max. | 64 kbyte |
FB |
Number, max. | 2048 |
Size, max. | 64 kbyte |
FC |
Number, max. | 2048 |
Size, max. | 64 kbyte |
OB |
Number, max. | see instruction list |
Size, max. | 64 kbyte |
Number of time alarm OBs | 4 |
Number of delay alarm OBs | 4 |
Number of time interrupt OBs | 4 |
Number of process alarm OBs | 4 |
Nesting depth |
per priority class | 24 |
additional within an error OB | 2 |
Counters, timers and their retentivity |
S7 counter |
Number | 256 |
Retentivity |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
preset | Z 0 to Z 7 |
Counting range |
lower limit | 1 |
upper limit | 999 |
IEC counter |
present | Yes |
Type | SFB |
S7 times |
Number | 256 |
Retentivity |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
preset | No retentivity |
Time range |
lower limit | 10 ms |
upper limit | 9990 s |
IEC timer |
present | Yes |
Type | SFB |
Data areas and their retentivity |
retentive data area, total | Total working and load memory (with backup battery) |
Flag |
Number, max. | 8 kbyte |
Retentivity available | Yes; MB 0 to MB 8191 |
Retentivity preset | MB 0 to MB 15 |
Number of clock memories | 8; 1 memory byte |
Data blocks |
Number, max. | 4096; DB 0 reserved |
Size, max. | 64 kbyte |
Address area |
I/O address area |
Inputs | 8 kbyte |
Outputs | 8 kbyte |
of which, distributed |
MPI/DP interface, inputs | 2 kbyte |
MPI/DP interface, outputs | 2 kbyte |
DP interface, inputs | 6 kbyte |
DP interface, outputs | 6 kbyte |
Process image |
Inputs, adjustable | 8 kbyte; adjustable at the expense of the code area of the RAM |
Outputs, adjustable | 8 kbyte; adjustable at the expense of the code area of the RAM |
Inputs, default | 256 byte |
Outputs, default | 256 byte |
consistent data, max. | 244 byte |
Access to consistent data in process image | Yes |
Subprocess images |
Number of subprocess images, max. | 8 |
Digital channels |
Inputs | 65536 |
Outputs | 65536 |
Inputs, of which central | 65536 |
Outputs, of which central | 65536 |
Analog channels |
Inputs | 4096 |
Outputs | 4096 |
Inputs, of which central |
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