| Work Memory |
16 KB (for program + data) |
| Load Memory |
Integrated 16 KB RAM; expandable via MMC (up to 8 MB) |
| Retentive Memory |
4 KB (flags, timers, counters) |
| Processing Time |
0.1 µs (bit), 1 µs (word), 3 µs (floating point) |
| Digital Inputs (DI) |
24 onboard (24 V DC, IEC Type 1, sink/source) |
| Digital Outputs (DO) |
16 onboard transistor (24 V DC, 0.5 A, source/PNP) |
| High-Speed Counters (HSC) |
4 @ 30 kHz (single-phase), 2 @ 20 kHz (A/B phase) |
| Pulse Outputs (PTO) |
2 @ 2.5 kHz (for stepper/servo positioning) |
| Communication Interface |
1 × MPI (187.5 kbps); supports DP slave via CP 342-5 |
| I/O Address Space |
128 bytes DI / 128 bytes DO |
| Max I/O Modules |
8 (in rack 0–3) |
| PID Control |
Up to 8 loops (standard FB) |
| Programming |
STEP 7 V5.6+ or TIA Portal V13+ (with GSD) |
| Programming Languages |
LAD, FBD, STL, SCL (limited) |
| Power Supply |
24 V DC (20.4–28.8 V) via PS 307
|
| Power Consumption |
700 mA @ 24 V DC (typical) |
| Inrush Current |
2.5 A |
| Isolation |
500 V DC (I/O to logic), 1500 V AC (power to I/O) |
| Battery Backup |
Optional MMC with battery (6ES7953-8Lx00-0AA0) |
| Real-Time Clock (RTC) |
No (requires MMC with battery) |
| LED Indicators |
SF (red), RUN (green), STOP (yellow), DI/DO status |
| 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) |
40 mm × 125 mm × 130 mm |
| Weight |
0.28 kg |
| Enclosure Rating |
IP20 |
| Certifications |
CE, UL, cUL, FM Class I Div 2, ATEX Zone 2, China RoHS, EAC
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