| Work Memory |
1 MB (for program + data) |
| Load Memory |
Integrated RAM; expandable via MMC (up to 64 MB) |
| Retentive Memory |
8 KB (flags, timers, counters) |
| Processing Time |
0.05 µs (bit operations), 0.2 µs (word), 0.4 µs (floating point) |
| I/O Address Space |
2048 bytes input / 2048 bytes output |
| High-Speed Counters (HSC) |
4 counters @ 100 kHz |
| Pulse Outputs (PTO) |
2 outputs @ 100 kHz |
| Communication Interfaces |
1st: MPI/DP (12 Mbps); 2nd: Profibus DP master/slave (9.6 kbps–12 Mbps) |
| Profibus DP Master |
Up to 32 slaves, 244 bytes I/O per slave |
| Profibus DP Slave |
Up to 244 bytes input + 244 bytes output |
| Power Supply |
24 V DC (20.4–28.8 V) via PS 307 |
| Power Consumption |
1.1 A @ 24 V DC (typical) |
| Inrush Current |
4 A |
| Isolation |
500 V DC (I/O to logic), 1500 V AC (power to I/O) |
| Battery Backup |
MMC with battery (6ES7953-8Lx00-0AA0) |
| Real-Time Clock (RTC) |
Yes (with MMC + battery) |
| LED Indicators |
SF (system fault), BF (bus fault), RUN (running), STOP (stop mode) |
| Operating Temperature Range |
0°C to +60°C |
| Storage Temperature Range |
-40°C to +70°C |
| Humidity |
5% to 95% non-condensing |
| Vibration |
IEC 60068-2-6 (1g, 10–150 Hz) |
| Shock |
IEC 60068-2-27 (15g, 11 ms) |
| Mounting |
S7-300 rail (slot 1, right of PS) |
| Dimensions (W x H x D) |
80 mm × 125 mm × 130 mm |
| Weight |
0.45 kg |
| Enclosure Rating |
IP20 |
| Certifications |
CE, UL, cUL, FM Class I Div 2, ATEX Zone 2, China RoHS, EAC |
