SIEMENS SCALANCE XF204-2BA – 6GK5204-2AA00-2GF2
Managed Industrial Ethernet switch in SIMATIC ET 200SP enclosure format with IEC 62443-4-2 certification. Equipped with 2 BusAdapter slots (supplied without BusAdapters), this unit supports 4x 10/100 Mbps communication ports, redundant 24 V DC power supply, error signaling contact with SET pushbutton, and conformal coating for harsh environments. Extended operating range –40 °C to +70 °C. C-PLUG optional.
Overview
Optimized for both discrete and process automation, the SCALANCE XF204-2BA supports the construction of robust line, star, and ring Ethernet topologies in demanding plant environments.
- NAMUR NE 21-compliant for process applications
- Extended operating temperature range up to +70 °C
- Conformal-coated PCB for enhanced reliability
- S2, CiR, and H-CiR firmware compatibility
- Diagnostics via PROFINET, SNMP, web server, or SINEC NMS
- H-Sync support for high-availability R-system redundancy (S7-1500R)
Compatible BusAdapters
Modular and flexible port configuration via:
- BA 2×RJ45 / BA 2×FC / BA 2×SCRJ
- BA SCRJ/RJ45 / SCRJ/FC / 2×LC / LC/FC / LC/RJ45
- BA 2×RJ45VD HA and other ET 200SP modules (BusAdapters not included with this unit)
Product Variant
SCALANCE XF204-2BA
Supports two modular BusAdapters, giving users the freedom to define electrical or optical interface combinations to suit their network layout.
Design
Compact and rugged plastic housing designed for ET 200SP system integration:
- IP20-rated with 100 mm width for space-saving panel installations
- DIN rail mountable
- Dual 2-pin 24 V DC power inputs for redundancy
- 2-pin terminal for floating signaling contact
- LED diagnostics row for power, traffic, and error status
- SET button for local alarm configuration
Port Types Available
- 2 x BusAdapter interfaces supporting:
- RJ45 10/100 Mbps (auto-sensing/crossover)
- SC RJ, LC, FC optical ports via modular adapters
Product code: 6GK5204-2AA00-2GF2













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