SIMATIC S7 300 CPU 314C 2 PN/DP (Compact), 6ES7 314 6EH04 0AB0

? Product Overview

• Part Number: 6ES7 314‑6EH04‑0AB0
• Product Name: CPU 314C‑2 PN/DP (Compact)
• Category: Compact CPU for SIMATIC S7‑300
• Memory: 192 KB work memory (non-expandable), uses Micro Memory Card (up to 8 MB) for load/program storage
• Integrated I/O:
• 24 Digital Inputs
• 16 Digital Outputs (4 high‑speed)
• 4 Analog Inputs
• 2 Analog Outputs
• 1 Pt100 interface

⚙️ Performance & Interfaces

• CPU Processing Times: ~0.06 µs (bit), 0.12 µs (word), 0.16 µs (fixed-point), 0.59 µs (floating-point)
• Counters: 4 high-speed counters, up to 60 kHz
• Interfaces:
• MPI/PROFIBUS DP (12 Mbps)
• Ethernet PROFINET (with built-in 2-port switch)

⚡ Power & Diagnostics

• Power Supply: Integrated 24 V DC, range 19.2–28.8 V; power buffering ~5 ms
• Diagnostics:
• LED status indicators
• Watchdog, real-time clock, operating-hour counter
• No external battery required (data retained on MMC)

?️ Configuration & Expansion

• I/O Expansion: Supports up to 3 expansion racks, each with up to 8 modules (max. 4 racks total)
• Programmable via: STEP 7 V5.5 or higher

? Physical & Lifecycle Info

• Dimensions: ~120 × 130 × 125 mm
• Weight: ~0.785 kg
• Lifecycle: Phase‑out since October 1, 2023 (PM400 phase-out)