• Model / Type: SIMATIC S7-300, CPU 313C-2 DP Compact CPU with MPI interface.
• Supply Voltage : 24 V DC nominal
• Permissible Supply Range: Lower: 19.2 V; Upper: 28.8 V DC
• Inputs / Outputs: 16 Digital Inputs + 16 Digital Outputs (24 V DC)
• Digital Output Current: Each output: up to 0.5 A
• Fast Counters: 3 high-speed counters, up to 30 kHz
• Memory: Work memory: 128 KB; Load memory: MMC plug-in, up to 8 MB via MMC card
• Power Supply Integrated: Yes; internal power supply 24 V DC included
• Mains Buffering / Supply Failure: Stored-energy time: ~5 ms; repeat rate minimum 1 s
• Input Delay / Filtering: Standard inputs delay parameterizable: 0.1 / 0.3 / 3 / 15 ms; rated default
• Switching / Load Capacity: Total output current per group: up to 3 A (horizontal install, up to 40 °C)
• Communication Interfaces: • MPI (Multi-Point Interface) via RS-485 • Profibus DP (Master/Slave) • Integrated DP interface • RS-485 ports for MPI & DP
• Processing Speeds: Bit operations typ. 0.07 µs; Word operations typ. 0.15 µs; Fixed-point arithmetic 0.2 µs; Floating point 0.72 µs
• Hardware / Block Capacity: Up to 1024 DBs, FCs, FBs; block size up to 64 KB each; number of function blocks etc. accordingly limited by memory.
• Diagnostics / Clock: Hardware real-time clock, synchronizable, retentive; backup ≈ 6 weeks at 40 °C ambient; operating hours counter; clock retains after power-off (for backup time)
• Isolation / Protection: Potential separation: between inputs/outputs and backplane bus; outputs have electronic short-circuit protection; inductive shutdown (voltage fly-back) limited to L+ (-48 V) etc.
• Ambient Temperature (Operation / Storage): Operating: 0 °C to +60 °C

         Storage: not explicitly in snippet; typical comparable CPUs have −25 °C to +70-80 °C storage.

• Dimensions: Width: ~80 mm; Height: ~125 mm; Depth: ~130 mm
• Weight : Approx. 500 g
• Programming / Configuration Tools: STEP 7 (V5.5 + SP1 or higher; or V5.3 + SP2 with HSP 203)
• Front Connector / MMC: Front connector 1 × 40-pole required; Micro Memory Card required for load memory and data retention.

1. Datasheet