How-To Guide · Siemens SCALANCE XB-200 · Industrial Ethernet Switch
SCALANCE X208 & X216: Installation, Wiring, and Configuration Guide
SCALANCE XB-200 Platform · Managed Layer 2 · PROFINET / EtherNet/IP · 10/100 Mbps
The
SCALANCE X208 (
6GK5208-0BA10-2AA3) and
SCALANCE X216 (6GK5216-0BA00-2AA3) are managed Layer 2 industrial Ethernet switches in the Siemens SCALANCE XB-200 family. The X208 provides 8 RJ-45 ports and the X216 provides 16 RJ-45 ports, both operating at 10/100 Mbps with half/full-duplex auto-negotiation and MDI-X auto-crossover. Both models feature redundant 24VDC power inputs (19.2–28.8V range, SELV), DIN rail mounting in a compact polycarbonate IP20 housing, and an RJ-11 serial diagnostics interface. Available in PROFINET and EtherNet/IP variants, the switches support network redundancy (MRP ring or RSTP), VLAN tagging (802.1Q), IGMP Snooping, and per-port LED diagnostics. This guide covers switch selection, DIN rail installation, power wiring, LED interpretation, protocol variant differences, and a side-by-side comparison with the Allen-Bradley Stratix 2000 — all specifications sourced from Siemens SCALANCE XB-200 Operating Instructions (C79000-G8976-C359-09).
1. What Is the SCALANCE X-200 Family?
The SCALANCE X-200 family is Siemens’ line of managed industrial Ethernet switches designed for automation networks. These switches provide Layer 2 switching for PROFINET IO, EtherNet/IP, and standard TCP/IP traffic in factory and process automation environments. The family spans from compact 5-port switches to high-density 16-port models, all built for industrial conditions: extended temperature range, DIN rail mounting, redundant 24VDC power, and IP20-rated polycarbonate housings.
Within the X-200 family, the XB-200 (Basic) sub-line includes the X208 and X216 covered in this guide. These are positioned as cost-effective managed switches for applications that need VLAN segmentation, network redundancy, or PROFINET integration but do not require fiber uplinks or Gigabit speeds.
Where SCALANCE Switches Fit in Automation
- PROFINET IO networks — connect SIMATIC S7-1500/S7-1200 controllers, ET 200SP distributed I/O, SINAMICS drives, and SIMATIC HMI panels on a single managed network with ring redundancy for fault tolerance.
- EtherNet/IP networks — connect PLCs, drives, and I/O from any EtherNet/IP-compatible vendor with RSTP redundancy and 802.1Q VLAN support.
- Machine-level access layers — place a SCALANCE switch in each machine panel to aggregate local device connections and uplink to a plant backbone switch.
- Mixed-protocol plants — use EtherNet/IP variants alongside Allen-Bradley controllers, or PROFINET variants with Siemens controllers, depending on your installed base.
2. X208 vs X216: Which Do You Need?
The X208 and X216 share the same feature set, firmware, and management capabilities. The only differences are port count, physical size, power consumption, and weight. Choose based on how many Ethernet devices you need to connect at a single location.
| Parameter | SCALANCE X208 | SCALANCE X216 |
|---|
| RJ-45 Ports | 8 | 16 |
| Speed | 10/100 Mbps | 10/100 Mbps |
| Current Draw (24V) | 170 mA | 280 mA |
| Power Loss | 4.1 W | 6.7 W |
| Dimensions (W x H x D) | 40 x 117 x 109 mm | 80 x 117 x 109 mm |
| Weight | 250 g | 400 g |
| MTBF | >84 years | >60 years |
| Typical Application | Small machine panels, 5–7 devices | Large panels, 12–15 devices |
Leave Room to Grow
Reserve at least 1–2 ports for future expansion or temporary diagnostic connections. If you have 7 devices today, the 8-port X208 leaves no room — consider the X216 instead.
3. Key Features
Managed Layer 2 Switching
Unlike unmanaged switches, the SCALANCE XB-200 provides full Layer 2 management including VLAN configuration, port-based access control, multicast filtering, and network diagnostics. Configuration is accessible via the integrated web interface, SNMP, CLI (serial), or SINEC NMS (Siemens network management software).
Network Redundancy
Both models support network redundancy to maintain communication if a link fails:
| Variant | Redundancy Protocol | Switchover Time | Topology |
|---|
| PROFINET | MRP (Media Redundancy Protocol) | <200 ms (typical <80 ms) | Ring |
| EtherNet/IP | RSTP (Rapid Spanning Tree Protocol) | Seconds (topology dependent) | Ring or mesh |
VLAN Support
| Variant | VLAN Capability | Use Case |
|---|
| EtherNet/IP | 802.1Q VLAN tagging | Segment control, HMI, and IT traffic on the same physical network |
| PROFINET | 802.1D transparent bridging | All ports in a single broadcast domain as required by PROFINET RT |
IGMP Snooping
Both variants support IGMP Snooping to manage multicast traffic. The switch monitors IGMP join/leave messages and forwards multicast frames only to ports that have active subscribers, preventing unnecessary multicast flooding across all ports.
Diagnostics Interface
An RJ-11 serial port on the front panel provides direct CLI access for diagnostics, configuration backup, and firmware updates without requiring network connectivity. This is especially useful for initial commissioning or troubleshooting a switch that has lost its IP configuration.
4. Technical Specifications
| Parameter | Value |
|---|
| Ethernet Ports | 8 x RJ-45, 10/100 Mbps, half/full duplex |
| Auto-Crossover | Yes — MDI-X on all ports |
| Diagnostics Port | 1 x RJ-11 serial interface |
| Switching Type | Managed Layer 2, store-and-forward |
| Rated Voltage | 24 VDC (SELV) |
| Voltage Range | 19.2–28.8 VDC |
| Redundant Power | Yes — dual 24VDC inputs |
| Current Draw | 170 mA at 24V |
| Power Loss | 4.1 W |
| Fusing | F 2.5A / 125V |
| Operating Temperature | 0 to +60°C (32 to 140°F) |
| Storage Temperature | -40 to +70°C (-40 to 158°F) |
| Humidity | ≤95%, non-condensing |
| Housing Material | Polycarbonate (PC-GF10) |
| Enclosure Rating | IP20 |
| Mounting | DIN rail (35 mm) |
| Dimensions (W x H x D) | 40 x 117 x 109 mm |
| Weight | 250 g |
| MTBF | >84 years |
SCALANCE X216 — 6GK5216-0BA00-2AA3
| Parameter | Value |
|---|
| Ethernet Ports | 16 x RJ-45, 10/100 Mbps, half/full duplex |
| Auto-Crossover | Yes — MDI-X on all ports |
| Diagnostics Port | 1 x RJ-11 serial interface |
| Switching Type | Managed Layer 2, store-and-forward |
| Rated Voltage | 24 VDC (SELV) |
| Voltage Range | 19.2–28.8 VDC |
| Redundant Power | Yes — dual 24VDC inputs |
| Current Draw | 280 mA at 24V |
| Power Loss | 6.7 W |
| Fusing | F 2.5A / 125V |
| Operating Temperature | 0 to +60°C (32 to 140°F) |
| Humidity | ≤95%, non-condensing |
| Housing Material | Polycarbonate (PC-GF10) |
| Enclosure Rating | IP20 |
| Mounting | DIN rail (35 mm) |
| Dimensions (W x H x D) | 80 x 117 x 109 mm |
| Weight | 400 g |
| MTBF | >60 years |
5. PROFINET vs EtherNet/IP Variants
The SCALANCE XB-200 switches are available in two firmware variants that determine protocol support and network behavior. The hardware is identical — the difference is in the loaded firmware and the features it enables.
| Feature | PROFINET Variant | EtherNet/IP Variant |
|---|
| Protocol Integration | PROFINET IO device — appears in TIA Portal hardware catalog | EtherNet/IP adapter — standard CIP object model |
| Redundancy | MRP (Media Redundancy Protocol) — ring topology | RSTP (Rapid Spanning Tree Protocol) — ring or mesh |
| VLAN | 802.1D transparent bridging (no VLAN tagging) | 802.1Q VLAN tagging supported |
| Device Name Assignment | PROFINET device name via DCP (Discovery and Configuration Protocol) | IP address via DHCP or static configuration |
| Engineering Tool | TIA Portal / STEP 7, SINEC NMS | Web browser, SNMP manager, CLI |
| Typical Controller | SIMATIC S7-1500, S7-1200 | Any EtherNet/IP controller (Allen-Bradley, Omron, etc.) |
How to Identify the Variant
The variant is encoded in the full catalog number. For the X208:
| Catalog Number | Variant |
|---|
| 6GK5208-0BA10-2AA3 | SCALANCE X208 — PROFINET variant |
| 6GK5208-0BA10-2AB2 | SCALANCE X208 — EtherNet/IP variant |
| 6GK5216-0BA00-2AA3 | SCALANCE X216 — PROFINET variant |
| 6GK5216-0BA00-2AB2 | SCALANCE X216 — EtherNet/IP variant |
Choosing the Right Variant
If your plant runs Siemens SIMATIC controllers (S7-1500 or S7-1200) with PROFINET IO, choose the PROFINET variant — it integrates directly into TIA Portal’s hardware configuration and supports MRP ring redundancy. If you are using Allen-Bradley controllers, multi-vendor EtherNet/IP networks, or need 802.1Q VLAN segmentation, choose the EtherNet/IP variant.
6. Power Supply & Wiring
Both the X208 and X216 operate on 24 VDC (rated) with an acceptable range of 19.2–28.8 VDC. The power supply must be a Safety Extra-Low Voltage (SELV) source per IEC/EN 60950-1. Both models feature redundant power inputs — connect two independent 24VDC supplies so the switch continues operating if one supply fails.
Power Input Specifications
| Parameter | X208 | X216 |
|---|
| Rated Voltage | 24 VDC | 24 VDC |
| Voltage Range | 19.2–28.8 VDC | 19.2–28.8 VDC |
| Power Supply Type | SELV (Safety Extra-Low Voltage) | SELV (Safety Extra-Low Voltage) |
| Redundant Inputs | Yes — Power 1 and Power 2 | Yes — Power 1 and Power 2 |
| Current Draw | 170 mA at 24V | 280 mA at 24V |
| Power Loss | 4.1 W | 6.7 W |
| Fusing | F 2.5A / 125V | F 2.5A / 125V |
Wiring the Power Connector
- Verify the power supply is de-energized before making any connections.
- Identify the terminal block on the top of the switch. The terminals are labeled for Power 1 (+/−) and Power 2 (+/−).
- Strip the wire ends approximately 6–8 mm. Use ferrules on stranded conductors for reliable contact.
- Connect Power 1: wire the positive (+) terminal to the +24V output of the first power supply, and the negative (−) terminal to 0V/ground.
- Connect Power 2: wire the second independent power supply to the Power 2 (+/−) terminals for redundancy.
- Tighten all terminal screws to the torque specified on the switch label.
- Energize the power supplies. Verify the power LED indicators show both inputs are active.
Redundant Power Supply Best Practice
Always use two independent 24VDC power supplies on separate circuit breakers or fuses. If both Power 1 and Power 2 are fed from the same supply, a single supply failure will take down the switch — defeating the purpose of redundancy. For critical PROFINET ring networks, redundant power is essential to maintain the ring during power events.
SELV Power Only
The SCALANCE XB-200 requires a Safety Extra-Low Voltage (SELV) power source per IEC/EN 60950-1. Do not connect to mains voltage or non-isolated power supplies. The voltage must remain within the 19.2–28.8 VDC range — voltages outside this range may cause malfunction or damage.
7. DIN Rail Installation
Both models mount on a standard 35 mm DIN rail (EN 60715). The IP20-rated polycarbonate housing must be installed inside an enclosure or cabinet suitable for the operating environment.
Mounting Steps
- Position the switch so the DIN rail clip on the rear of the housing aligns with the top edge of the DIN rail.
- Hook the top clip over the upper edge of the DIN rail.
- Press the bottom of the switch toward the DIN rail until the lower clip snaps into place.
- Verify the switch is firmly seated and does not slide along the rail. Use DIN rail end stops if needed to prevent lateral movement.
Clearance Requirements
| Direction | Minimum Clearance |
|---|
| Above and below | 50 mm (2.0 in.) for airflow |
| Left and right | 20 mm (0.8 in.) minimum; more if adjacent heat sources |
| Front | Sufficient for Ethernet cable bend radius and connector access |
Removal
- Disconnect all Ethernet cables and the power connector before removal.
- Press the switch downward slightly to disengage the lower DIN rail clip.
- Tilt the bottom of the switch away from the DIN rail and lift upward to remove.
Grounding
Ensure the DIN rail is properly grounded to the enclosure’s protective earth (PE). The switch grounds through the DIN rail clip. Use zinc-plated steel DIN rail — aluminum or plastic rail may provide inadequate grounding. Verify grounding resistance is less than 1 Ω from the DIN rail to the enclosure PE terminal.
8. LED Diagnostics
The SCALANCE XB-200 switches provide per-port link/activity LEDs and a fault LED on the front panel for quick visual diagnostics.
Port LEDs (per port)
| LED State | Color | Meaning |
|---|
| Off | — | No link — no device connected or link not established |
| Steady | Green | Link established at 100 Mbps |
| Steady | Yellow/Amber | Link established at 10 Mbps |
| Blinking | Green | Data activity on the port at 100 Mbps |
| Blinking | Yellow/Amber | Data activity on the port at 10 Mbps |
Fault LED
| LED State | Color | Meaning | Action |
|---|
| Off | — | No fault detected | Normal operation — no action required. |
| Steady | Red | Fault condition active | Check for power supply failure on one input, link-down on a monitored port, ring break (PROFINET MRP), or configuration error. Access the web interface or CLI for detailed fault information. |
| Blinking | Red | Warning or transitional state | The switch is detecting a recoverable issue. Check the diagnostics log via the web interface or serial CLI. |
Power LED
| LED State | Color | Meaning |
|---|
| Off | — | No power — switch is not energized |
| Steady | Green | Power supply active — switch is operating normally |
Common Issues and Resolutions
| Symptom | Likely Cause | Resolution |
|---|
| No LEDs at all | No power to switch | Verify 24VDC is connected and within 19.2–28.8V range. Check fusing (F 2.5A / 125V). Confirm the power supply is energized and SELV-rated. |
| Fault LED steady red | Redundant power input lost, monitored link down, or ring break | Check both power inputs. Verify all monitored port connections. For MRP ring networks, check the ring topology for a broken link. Access the web interface for the specific fault message. |
| Port LED off with cable connected | No Ethernet link | Verify the cable is fully seated in both the switch and the connected device. Test with a known-good Cat5e/Cat6 cable. Confirm the connected device is powered on and its NIC is functioning. Check for cable damage or exceeding 100 m maximum length. |
| Port LED yellow instead of green | Link negotiated at 10 Mbps instead of 100 Mbps | Check cable quality — damaged or low-quality cables may fall back to 10 Mbps. Verify the connected device supports 100 Mbps. Try a different cable or port. |
| Intermittent link drops | EMI, cable quality, or loose connection | Use shielded Cat5e or Cat6 cables in industrial environments. Route cables away from VFDs, motor power wiring, and high-voltage switching. Ensure connectors are fully clicked into the RJ-45 jacks. |
| Switch not reachable via web interface | IP address not configured or incorrect subnet | Connect via the RJ-11 serial diagnostics port to access the CLI. For PROFINET variants, assign a device name via TIA Portal DCP. For EtherNet/IP variants, check DHCP or set a static IP via the serial interface. |
9. SCALANCE X208 vs Allen-Bradley Stratix 2000
If your plant has both Siemens and Allen-Bradley equipment, or you are evaluating switch platforms for a new project, the following comparison may help. The SCALANCE X208 and the 1783-US8T Stratix 2000 are both 8-port industrial Ethernet switches aimed at the access layer, but they differ significantly in management capabilities.
| Feature | SCALANCE X208 | Stratix 2000 (1783-US8T) |
|---|
| Switch Type | Managed Layer 2 | Unmanaged |
| Ports | 8 x RJ-45 10/100 | 8 x RJ-45 10/100 |
| VLAN Support | 802.1Q (EtherNet/IP variant) | None |
| Ring Redundancy | MRP (PROFINET) / RSTP (EtherNet/IP) | None — no STP or ring support |
| Web Interface | Yes | No |
| SNMP | Yes | No |
| PROFINET Integration | Native PROFINET IO device | Not available |
| EtherNet/IP Integration | CIP object model (EtherNet/IP variant) | Basic EtherNet/IP pass-through |
| Power Input | 24 VDC (19.2–28.8V), redundant | 24 VDC (12–48V), redundant |
| Power Consumption | 4.1 W | 3.4 W |
| Enclosure Rating | IP20 | IP30 |
| Operating Temperature | 0 to +60°C | -10 to +60°C |
| Configuration Required | Yes — IP, VLANs, redundancy | None — plug and play |
When to Choose Which
Choose the
Stratix 2000 when you need a simple, zero-configuration switch for a star-topology Ethernet segment — it just works out of the box. Choose the
SCALANCE X208 when you need VLANs, ring redundancy, PROFINET device integration, or remote diagnostics via a web interface. For Allen-Bradley managed switching, compare the Stratix 5200 (1783-CMS) or Stratix 5800 (1783-MMS) against the SCALANCE X-200. See our
Stratix 2000 installation guide for full details on the Allen-Bradley platform.
10. Related Guides & Resources
Reference Documentation
The following Siemens publication was used as the primary data source for this guide. All technical specifications, port counts, power ratings, dimensions, and feature descriptions were extracted directly from this manufacturer document.
| Publication | Description | Download |
|---|
| C79000-G8976-C359-09 | SCALANCE XB-200 Operating Instructions — covers X208 and X216 models, installation, configuration, diagnostics, and technical specifications | Siemens Support |
In Stock at PLC Exchange
The SCALANCE X208 (
6GK5208-0BA10-2AA3) and SCALANCE X216 (6GK5216-0BA00-2AA3) are available from PLC Exchange with a
2.5-year warranty and
same-day shipping. All units are fully tested before shipment.
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