SIEMENS SCALANCE XF204-2 – 4-Port Industrial Ethernet Switch | SIMATIC NET Platform
Engineering Background
The SCALANCE XF204-2 is part of Siemens’ SIMATIC NET SCALANCE X-200 series — a proven family of unmanaged and managed industrial Ethernet switches engineered for deterministic, high-availability communication in factory automation, process control, and infrastructure environments. Designed to IEC 61918 and IEC 61784 industrial networking standards, the XF204-2 delivers reliable Layer 2 switching with fiber uplink capability, making it the preferred choice for noise-immune, long-distance backbone segments in harsh industrial settings.
Product Positioning
The 6GK5204-2BC00-2AF2 variant integrates four 10/100 Mbps RJ45 copper ports with two 100 Mbps FX multimode fiber ports (SC connector), enabling mixed copper-fiber topologies without additional media converters. It is purpose-built for PROFINET, Industrial Ethernet, and SIMATIC S7 controller networks where electromagnetic interference, vibration, and wide temperature ranges demand more than commercial-grade hardware.
Complete Technical Specifications
| Order Number (MLFB) | 6GK5204-2BC00-2AF2 |
| Product Family | SCALANCE X-200 / SIMATIC NET |
| Switch Type | Unmanaged Industrial Ethernet Switch |
| Copper Ports | 4 × RJ45, 10/100 Mbps, Auto-MDI/MDIX |
| Fiber Ports | 2 × SC, 100 Mbps FX Multimode (50/125 µm or 62.5/125 µm) |
| Fiber Max. Distance | Up to 3 km (multimode) |
| Switching Method | Store-and-Forward |
| Supply Voltage | 24 V DC (18–32 V DC) |
| Power Consumption | Max. 5 W |
| Operating Temperature | -10 °C to +60 °C |
| Storage Temperature | -40 °C to +80 °C |
| Degree of Protection | IP30 |
| Mounting | DIN Rail (35 mm) |
| Dimensions (W×H×D) | Approx. 60 × 125 × 75 mm |
| Weight | Approx. 400 g |
| EMC Compliance | CE, UL, cUL, ATEX Zone 2 |
| Certifications | PROFINET, IEC 61918, UL 508, GL, DNV |
| LED Diagnostics | Per-port Link/Activity, Power, Fault |
| MTBF | > 300,000 hours |
Proven Application Environments
- SIMATIC S7-300 / S7-400 / S7-1500 PROFINET Networks — direct integration as a PROFINET-transparent switch without configuration overhead
- Automotive Assembly Lines — DIN rail mounting and wide temperature tolerance suit body shop and paint shop environments
- Water & Wastewater Treatment Plants — fiber uplinks eliminate ground loop issues across geographically separated pump stations
- Power Substation Automation — EMC-hardened design meets IEC 61850 substation communication requirements
- Oil & Gas Upstream/Midstream — ATEX Zone 2 certification supports use in potentially explosive atmospheres
- Building Automation (BAS/BMS) — compact form factor integrates into control panels alongside PLCs and I/O modules
- Machine Tool & CNC Networks — deterministic forwarding ensures cycle-time-critical PROFINET IO communication
Engineering Advantages
- Zero-Configuration Operation — plug-and-play unmanaged design eliminates commissioning time; no IP address or SNMP setup required
- Fiber Backbone Capability — dual SC fiber ports extend network reach up to 3 km, bypassing EMI-prone cable trays
- Fanless Passive Cooling — no moving parts; MTBF exceeds 300,000 hours for continuous 24/7 industrial operation
- Redundant Power Input — dual 24 V DC terminals with fault signaling relay for high-availability panel designs
- SIMATIC NET Ecosystem Compatibility — fully interoperable with STEP 7, TIA Portal network topology views and diagnostics
- Compact DIN Rail Form Factor — 60 mm width minimizes panel real estate; mounts alongside S7 CPUs and ET 200 I/O
- Wide EMC Immunity — tested to EN 61000-6-2 heavy industrial immunity, suitable for VFD-dense environments
System Architecture & Signal Flow
In a typical PROFINET IO topology, the SCALANCE XF204-2 functions as a star-topology concentrator connecting field devices (drives, sensors, HMI panels) via RJ45 copper ports to a fiber backbone ring or linear segment. The fiber SC ports uplink to higher-level switches (e.g., SCALANCE X-300 or X-400 series) or directly to the SIMATIC S7 CPU’s integrated PROFINET port, providing electrical isolation and extended reach simultaneously.
Signal flow: Field Device (RJ45) → XF204-2 Store-and-Forward Engine → Fiber SC Uplink → Backbone Switch / PLC CPU
The unmanaged architecture ensures deterministic frame forwarding with no management overhead latency, critical for PROFINET RT (Real-Time) Class 1 applications with cycle times as low as 1 ms.
Sourcing & Quality Verification
- Origin: Sourced from authorized Siemens distribution channels and verified surplus industrial inventory
- Inspection: Each unit undergoes visual inspection, label authenticity verification, and power-on functional test prior to shipment
- Packaging: Ships in original or equivalent ESD-safe anti-static packaging with protective foam inserts
- Documentation: CE Declaration of Conformity and Siemens product datasheet available upon request
- Warranty: 90-day operational warranty against defects in materials and workmanship
- Counterfeit Prevention: All units verified against Siemens MLFB order number database; holographic labels and serial numbers confirmed
Procurement Process
- Inquiry — Submit your BOM or part number via email to support@konmask.com or WhatsApp +0086 19859288691
- Quote & Lead Time — Receive a formal quotation with confirmed stock availability and estimated delivery within 24 hours
- Order Confirmation — Purchase order accepted via Shopify checkout, bank transfer (T/T), or trade platform escrow
- Quality Inspection — Pre-shipment inspection report and photos provided upon request at no additional charge
- Shipping — DHL / FedEx / UPS express worldwide; EXW Xiamen or CIF destination available; customs documentation included
- After-Sales Support — Technical application support and replacement coordination within warranty period
Technical FAQ
Q: Is the SCALANCE XF204-2 managed or unmanaged?
A: Unmanaged. It operates as a transparent Layer 2 switch with no configuration interface. For managed features (VLANs, RSTP, SNMP), consider the SCALANCE XC-200 or XM-400 series.
Q: What fiber cable type is required for the SC ports?
A: 50/125 µm or 62.5/125 µm multimode fiber with SC connectors. Maximum segment length is 3 km at 100 Mbps. Single-mode fiber is not supported on this variant.
Q: Can this switch be used in a PROFINET ring topology?
A: No. Ring redundancy (MRP) requires a managed switch. The XF204-2 supports linear and star topologies only. For ring redundancy, use SCALANCE XC206-2 or higher.
Q: What is the power supply requirement?
A: 24 V DC nominal (18–32 V DC range). Standard SIMATIC 24 V DC panel power supplies (e.g., SITOP PSU100S) are fully compatible.
Q: Is this product compatible with TIA Portal network views?
A: Yes. As a SIMATIC NET device, it is recognized in TIA Portal’s network topology editor and STEP 7 hardware configuration for documentation purposes, though no GSD/GSDML file is required for unmanaged operation.
Q: Do you provide a test report before shipment?
A: Yes. A power-on functional test report with port link status confirmation is available upon request. Contact us before placing your order to arrange pre-shipment inspection.
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Contact: support@konmask.com | +0086 19859288691
