• 4-port switch for configuring electrical and optical Industrial Ethernet line, star and ring topologies
• Integral redundancy manager for design of ring topologies
• Integral standby function for redundant coupling of two rings
• Extremely short cycle times with highly accurate clock-pulse rates thanks to integrated real-time functions
• Bumpless ring redundancy by sending message frames twice in the ring, by means of PROFINET-compliant MRPD procedure (Media Redundancy for Planned Duplication according to IEC 61158)
• System-wide clock accuracy (less than 1 ms)
• Uncrossed connecting cables can be used due to Autocrossover function integrated in the ports
• Load disconnection through integral switch functionality
• Easy diagnostics using signaling contact, SNMP and Web browser
• Automatic e-mail function
• Integration into the diagnostics of a PROFINET IO-Controllers for a consistent diagnostics concept, including network infrastructure
• Fast device replacement in the event of a fault by using the optional C-PLUG swap medium (not included in scope of supply)

Network topology and network configuration

The SCALANCE X-200IRT PRO Industrial Ethernet Switches are usually installed together with the stations to be connected (e.g. ET 200S) directly onto the machine. When configuring the network, it is necessary to observe the following boundary conditions:

• Length of the TP cable between two SCALANCE X switches:
  • Max. 100 m with IE FC cable and IE FC RJ45 Plug PRO
  • Max. 10 m with TP Cord
• Length of the optical cables
  • Max. 4000 m with Industrial Ethernet glass fiber-optic cables (62.5/125 µm)
  • Max. 5000 m with Industrial Ethernet glass fiber-optic cables (50/125 µm)
  • Max. 100 m with Industrial Ethernet PCF fiber-optic cables.
  • Max. 50 m with Industrial Ethernet POF fiber-optic cables.
• IP Address:
  The IP address is assigned by means of the DHCP (Dynamic Host Configuration Protocol). If there is no corresponding server in the network, the IP address can be assigned using the supplied software tool PST (Primary Setup Tool) or STEP 7. The SCALANCE X-200IRT PRO switches and their real-time functions are configured with STEP 7.

Commissioning and diagnostics

PROFINET diagnostic alarms from SCALANCE X-200IRT PRO switches can be displayed with the appropriate SIMATIC Engineering Tools and processed in the control unit. The engineering outlay for the PLC and HMI have been drastically reduced due to the complete integration in the SIMATIC concept for system error messages.

The SCALANCE X-200IRT PRO Industrial Ethernet switches can also be integrated into a network management system through the standardized protocol SNMP (Simple Network Management Protocol). In the event of a device fault, error messages (SNMP traps) can be sent to a network system or as e-mail to a specified network manager.

The integral Web server enables configuration and diagnosis settings to be made using a standard browser. Statistical information can also be read out over the Web server. Warning thresholds, and alarms generated by them, permit early recognition of critical fiber states (only with POF). Cable failures (fiber breakage) can thus be avoided, and plant downtimes reduced, since maintenance work can be carried out at an early point in time and outside production periods.

The following information is displayed on site by LEDs:

• Power
• Port status
• Data traffic
• RM activated
• POF cable diagnostics (for POF versions only)

The Industrial Ethernet switches of the SCALANCE X-200IRT PRO line can also be monitored over the floating signaling contact.

Configuration example for SCALANCE X204IRT PRO

Configuration with high-speed redundancy in the optical ring

Redundant coupling of two subnets with SCALANCE X-200IRT PRO

Mixed network topology with plastic fiber-optic cables and twisted-pair cables