Technical specifications Compact CPUs
SIMATIC S7-300
| CPU | CPU 312C 1) | CPU 313C 1) | CPU 313-2 PtP | CPU 313C-2 DP 1) | CPU 314C-2 PtP | CPU 314C-2 DP 1) |
| Dimension (mm) |
80 x 125 x 130 | 120 x 125 x 130 | 120 x 125 x 130 | |||
| Required front connector | 1 x 40-pin | 2 x 40-pin | 1 x 40-pin | 2 x 40-pin | ||
| Order No. group: 6ES7 | 312-5BE. | 313-5BF. | 313-6BF. | 313-6CF. | 314-6BG. | 314-6CG. |
| Memory | ||||||
| RAM | 32 KB | 64 KB | 96 KB | |||
| Instructions | 10 K | 21 K | 32 K | |||
| Processing times | ||||||
| Bit operation | 0,2 µs | 0,1 µs | 0,1 µs | |||
| Word operation/fixed-point./floating-point operat. | 0,4/5/6 µs | 0,2/2/3 µs | 0,2/2/3 µs | |||
| Bit memories/timers/counters | ||||||
| Bit memory | 128 bytes | 256 bytes | 256 bytes | |||
| S7 timers/counters | 128/128 | 256/256 | 256/256 | |||
| IEC timers/counters | ■ | ■ | ■ | |||
| Address areas | ||||||
| I/O (bytes) | 1024/1024 | 1024/1024 | 1024/1024 | 1024/1024 | ||
| Process I/O image | 128/128 bytes | 128/128 bytes | 128/128 bytes | 128/128 bytes | ||
| Digital channels (central) | 266 | 1016 | 1008 | 1016 | ||
| Analog channels (central) | 64 | 253 | 248 | 253 | ||
| Integrated functions | ||||||
| Counter (incremental enc.) | 2 , 24 V/10 kHz | 3 incr.enc., 24 V/30 lHz | 4 incr.enc., 24 V/60 kHz | |||
| Pulse outputs (PCM) | 2 channels, max. 2.5 kHz | 3 channels, max. 2.5 kHz |
4 channels, max. 2.5 kHz |
|||
| Frequency measurement | 2 channels, max. 10 kHz | 2 channels, max. 30 kHz | 2 channels, max. 60 kHz | |||
| Open-loop positioning | SPB for positioning 1 axis via 2 DO, AO | |||||
| Integrated "Controlling" FB | PID controller | PID controller | PID controller | |||
| Integrated I/O | ||||||
| Digital inputs | 10 x 24V DC; all channels can be used for process interrupts | 24 x 24V DC; all channels can be used for process interrupts | 16 x 24V DC; all channels can be used for process interrupts | 24 x 24V DC; all channels can be used for process interrupts | ||
| Digital outputs | 6 x 24 V DC, 0.5 A | 16 x 24 V DC, 0.5 A | 16 x 24 V DC, 0.5 A | 16 x 24 V DC, 0.5 A | ||
| Analog inputs | 4: ± 10 V, 0..10 V, ± 20 mA, 0/4..20 mA; 1: 0..600 Ω, PT100 | 4: ± 10 V, 0..10 V, ± 20 mA, 0/4..20 mA; 1: 0..600 Ω, PT100 | ||||
| Analog output | 2: ± 10 V, 0..10 V, ± 20 mA, 0/4..20 mA | 2: ± 10 V, 0..10 V, ± 20 mA, 0/4..20 mA | ||||
| DP interface | ||||||
| DP maser systems int./ CP 342-5 | -/n | -/n | -/n | ■/n | -/n | ■/n |
| DP slave | ■ | ■ | ||||
| PtP interface | ||||||
| Properties | RS485/422 | RS485/422 | ||||
| Protocol driver | 3964 (R), RK512, ASCII | 3964 (R), RK512, ASCII | ||||