SIMATIC S7-300
CPU 318-2 DP 512 KByte USER MEMORY
- 256 KB CODE
- 256 KB DATA 1ST INTERF. = MPI 12 MBIT/S
- 2ND INTERF. = PROFIBUS DP)
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SIMATIC S7-300
CPU 318-2 DP 512 KByte USER MEMORY
- 256 KB CODE
- 256 KB DATA 1ST INTERF. = MPI 12 MBIT/S
- 2ND INTERF. = PROFIBUS DP)
- User memory : 512 Kbytes (256 Kbytes code, 256 Kbytes data)
- Loading memory:
+ 64 Kbytes integrated
+ FEPROM/RAM memory cards up to 4 Mbytes
- I/O address area: 8 Kbytes
+ i.e. DI/DO max. : 16384 of which 1024 are centralised
+ And AI/AO max. : 2048 of which 128 are centralised
- Retentive data:
- Without battery: 8 Kbytes (flags, timers, counters, data)
- With battery: all software blocks
- Max. number of blocks: 1024 FC, 1024 FB, 2047 DB
- Execution times:
- Binary operations: 100 ns
- Word operations: 100 ns
- Timer/counter operations: 100 ns
- Fixed-point addition: 100 ns
- Floating-point addition: 600 ns
- Flags 8192 (can be set retentive)
- Counters 512 (can be set retentive)
- Timers 512 (can be set retentive)
The no. of IEC1131 timers and counters is unlimited (10 bytes per timer/
counter in the user program).
- The MPI port supports:
- PG/OP communication
- Global data communication
- S7 basic communication
- S7 communication (server only)
- Transmission rates: 12 Mbit/s, 187.5 kbit/s or 19.6 kbit/s
- PROFIBUS DP port (master or slave):
- Transmission rate: up to 12 Mbaud
- Stations: up to 96 ET 200 stations
- PG/OP communication
- Max. 244 bytes of process data per ET 200 station