Description
SIEMENS 6ES7313-6CG04-0AB0 – SIMATIC S7-300 Compact CPU for PROFINET/PROFIBUS Machine Control
The SIEMENS 6ES7313-6CG04-0AB0 sits in that sweet spot for OEM machinery and mid-size systems where you want a solid S7‑300 CPU with Ethernet and fieldbus on board. From my experience, this “C” compact variant gives you the usual S7‑300 reliability, integrated I/O for faster wiring, and dual networking (PROFINET and PROFIBUS DP) so you can talk to drives, HMIs, remote I/O, and safety gateways without stacking extra comm modules. It typically pairs well with small packaging lines, pumps, and material handling skids where cabinet space is tight but cycle-time still matters.
Our Order Placement Process & Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than 1 month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Dual industrial networks: 1x PROFINET (Ethernet) + 1x PROFIBUS DP for flexible topology and easy device integration.
- Compact design with onboard I/O: Digital and analog channels integrated, which typically cuts wiring time and cabinet footprint.
- Step 7 engineering: Program with SIMATIC STEP 7 (classic) or, in many cases, via TIA Portal depending on firmware version.
- 24 VDC operation: Common control voltage simplifies panel power design.
- Scalable system: Add standard S7‑300 SM modules on the rail as your machine grows.
- MMC-based reliability: Uses a SIMATIC Micro Memory Card for program storage, firmware, and easy field replacement.
- Deterministic performance: Well-suited for discrete logic, motion-lite tasks, and coordinated I/O without overcomplicating the architecture.
Technical Specifications
| Brand / Model | SIEMENS SIMATIC S7‑300 / 6ES7313-6CG04-0AB0 (CPU 313C‑2 with PN/DP) |
| HS Code | 8537.10 (Programmable controllers) |
| Power Requirements | 24 V DC (typical S7‑300 CPU supply) |
| Dimensions & Weight | Approx. 125 × 80 × 130 mm (H×W×D); ~0.5 kg |
| Operating Temperature | 0…60 °C (control cabinet installation, per typical S7‑300 conditions) |
| Signal Input/Output Types | Integrated digital I/O (24 VDC) and analog V/I I/O (12‑bit typical for C‑CPUs) |
| Communication Interfaces | 1× PROFINET (RJ45, 10/100 Mbps), 1× PROFIBUS DP (9‑pin D‑sub) |
| Installation Method | S7‑300 mounting rail (DIN rail) with integrated backplane bus |
| Programming Software | SIMATIC STEP 7; TIA Portal support in many cases (check firmware) |
Application Fields
This model fits discrete and hybrid automation where space and simplicity matter:
- Packaging and labeling machines with moderate axis counts using drives over PROFINET/PROFIBUS.
- Material handling cells, conveyors, small AS/RS subsystems, and palletizers.
- Water & wastewater skids (pumping, dosing) with analog feedback and simple PID loops.
- HVAC process units and utilities—fans, dampers, compressors—requiring dependable sequencing.
- OEM special-purpose equipment where integrated I/O shortens the panel build schedule.
A packaging OEM told us the 313C‑2 PN/DP swap reduced their commissioning time by a day because Ethernet HMIs and PROFIBUS drives could be brought online in parallel. That seems to be a common pattern with this CPU.
Advantages & Value for Procurement
- Proven reliability: Mature S7‑300 platform with long field history and stable firmware.
- Compatibility: Works with a wide range of SIEMENS HMIs, drives, and ET200 I/O on PN/DP.
- Cabinet efficiency: Onboard I/O typically lowers part count and wiring effort, cutting build cost.
- Lifecycle and spares: Broad availability of replacement modules and accessories reduces downtime risk.
- Engineering flexibility: STEP 7 classic or TIA Portal options (depending on firmware) protect your existing know‑how.
Installation & Maintenance
- Cabinet environment: Mount on S7‑300 rail in a ventilated enclosure; allow spacing for airflow; avoid direct heat sources.
- Power and grounding: 24 VDC with proper overcurrent protection; bond PE; use shielded cables for PN/DP where applicable.
- Wiring practices: Separate power and signal wiring; observe PROFIBUS termination; use industrial-grade RJ45 for PN.
- Memory card: Use a SIMATIC Micro Memory Card for program storage; keep a cloned spare for rapid field replacement.
- Firmware and backup: Keep CPU firmware and project backups aligned; update during planned downtime only.
- Routine checks: Verify connector tightness, clean dust filters, and review diagnostic buffer during scheduled maintenance.
Quality & Certifications
- Certifications typically include CE and UL/cUL for industrial control equipment; RoHS compliant in most cases.
- Manufacturer standard warranty practices apply; we provide a 365‑day warranty on this supply.
Recommended Accessories & Compatible Components
- SIMATIC Micro Memory Card (MMC) for program and firmware storage.
- PS307 24 VDC power supply modules sized to your load (e.g., 5 A / 10 A variants).
- ET 200 (PN/DP) remote I/O, SINAMICS or MICROMASTER drives via PROFINET/PROFIBUS.
- Industrial RJ45 patch cords and PROFIBUS connectors with proper termination.
- Additional S7‑300 SM digital/analog modules if you need more I/O capacity.








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