SCALANCE XR-300PoE managed производства Siemens

The SCALANCE XR-300PoE is ideal for use in plant networks and for integrating the industrial network into an existing corporate network. Both at the field level and the control level, the switch performs the network with the distributed field devices and ensures high plant availability with extensive diagnostics options and high transmission speeds. The modularity permits perfect adaptation to the respective application through the use of electrical and also optical media modules.

The SCALANCE XR-300PoE supplies PoE-compatible devices, such as IWLAN Access Points SCALANCE W, IP cameras and IP telephones, with energy over the data cable and is suitable for constructing electrical and/or optical Industrial Ethernet linear, star or ring structures with up to 24 ports, of which 16 RJ45 ports are pre-assigned. Eight of these support PoE. The switch can be optionally equipped with four electrical and/or optical 2-port media modules. It can also be used as a hub in the plant bus (redundant connection is possible).

Supply of terminal devices with PoE by means of PoE-compatible switches

The use of media modules in partly and fully modular versions of the SCALANCE X-300 switches supports:

• The extension of networks by subsequent insertion of additional media modules in unused media module slots
• The changing of cabling technology, e.g. conversion from copper to fiber-optic cables, or from multimode to single-mode FOC

• Unlimited flexibility during network expansions (e.g. more terminals) or conversion (e.g. switching from copper to fiber-optic cable) and reduction of the storage costs due to the modular construction using port modules
• Saving of additional power supply units and cabling for terminals by means of PoE voltage supply
• High availability of the network due to
  • redundant voltage feed
  • redundant network structures based on FOC or Twisted Pair (redundancy manager, standby function and STP/RSTP integrated)
  • easy device replacement by means of plug-in C-PLUG swap medium
  • very fast reconfiguration of the network in event of a fault
• lower susceptibility to faults and higher availability of the plant networking by latching the RJ45 FastConnect plug in the retaining collar of the RJ45 port modules
• Protection of investment through integration into existing network management systems by means of standardized SNMP access
• Time saving during engineering, commissioning and in the operating phase of a plant due to integrated configuration and diagnostics in STEP 7, without additional software
• Space savings in control cabinet due to flexible cable outlet on the front or rear of the device

The SCALANCE XR-300PoE Industrial Ethernet switches with rugged metal enclosure with IP20 degree of protection are optimized for installation in the 19" control cabinet. Versions are available with either 24 V DC or 100 - 240 V AC connections. The connection of the power supply and the data cable outlet are located optionally either at the front or rear of the device.

The switches have:

• 4-pin terminal block for redundant voltage feed to protected against power failure at 24 V DC
• 2-pin terminal block for voltage feed at 100 - 240 V AC
• 2-pin terminal block for connecting the isolated signaling contact for simple display of faults
• Row of LEDs for indicating status information (power, link status, data transfer, power supply, signal contact)
• SELECT/SET pushbutton for easy setting of the fault signaling contact on the device
• Slot for optional C-PLUG swap medium on the side of the device for easy replacement in the event of a fault
• Console port (serial interface) for on-site parameterization/diagnostics (RJ11 cable to RS232 (9-pin) included in scope of delivery)

The SCALANCE XR-300PoE switches are available with the following types of port:

• 16 integrated RJ45 ports, eight RJ45 ports supporting PoE;
• The RJ45 sockets are designed to industry standards with additional sleeves, for connection of the Industrial Ethernet FC RJ45 Plug 180
• All electrical Ethernet interfaces support 10/100/1000 Mbit/s,
  all optical Ethernet interfaces support 100 or 1000 Mbit/s
• The SCALANCE XR-300 switches support Gigabit Ethernet (1000 Mbit/s) at all ports. The 24 ports are divided into three groups of eight ports each (Gigabit Ethernet Blocking). Gigabit Ethernet is supported with full wire speed within each group, but not between the groups.

Product versions

SCALANCE XR324-4M PoE (4 media module slots)

Versions are available with

• LEDs, power supply connection and data cable outlet on the front
• LEDs on the front, power supply connection and data cable outlet at the rear

All versions have twelve media module slots and

• 1 x 24 V DC power supply
• 1 x 100 - 240 V AC power supply unit

SCALANCE XR-300 with cable outlet at rear

• Support of Power over Ethernet (PoE) to IEEE 802.3at Type1 (corresponds to IEEE 802.3af)
• Integrated redundancy manager for constructing Fast Ethernet and Gigabit Ethernet ring topologies with high-speed media redundancy. Reliable communication is achieved by closing an optical or electrical line with SCALANCE X-400, X-300 or X-200 switches to form a ring. The redundancy manager (RM) integrated in the SCALANCE XR-300 switch monitors the function of the network. It recognizes the failure of a transmission link or a SCALANCE X switch in the ring and activates the substitute path within a maximum of 0.2 seconds.
• Redundant interfacing to company networks;
  SCALANCE XR-300 switches support the standardized redundancy procedures Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP). This enables a subnetwork to be connected redundantly to a higher level corporate network with reduced requirements for the reconfiguration time (in the order of seconds).
• Support of virtual networks (VLAN);
  for structuring Industrial Ethernet networks with a fast growing number of users, a physically existing network can be divided into several virtual networks.
• Load limiting when multicast protocols (e.g. video transmission) are used;
  through learning the multicast sources and targets (IGMP Snooping, IGMP Querier), SCALANCE XR-300 switches can also filter multicast data traffic and therefore limit the load in the network. Multicast and broadcast traffic can be limited.
• Time synchronization;
  diagnostic messages (log table entries, e-mails) are time-stamped. The local time is standardized throughout the network by means of synchronization with a SICLOCK time transmitter, thereby simplifying the assignment of diagnostic messages to several devices.
• Link aggregation (IEEE 802.1q) for bundling data streams
• Quality of Service (IEEE 802.1p) for prioritization of network traffic

Network topology and network configuration

The network topology can easily be adapted to the structure of the plant using SCALANCE XR-300 Industrial Ethernet switches .

The following network structures and combinations of structures can be implemented:

• Fast Ethernet with fast media redundancy;
  to increase network availability, as many as 50 X-200, X-300, X-400 or X-500 switches cascaded in line can be connected into a ring.
• Several rings can be redundantly linked through the standby function
• In addition, SCALANCE XR-300 supports redundant connection of the ring structure to the corporate network with a rapid spanning tree.
• Star topology with SCALANCE XR-300 switches:
  Each SCALANCE XR-300 switch represents a neutral point that can connect up to 24 nodes or subnets with each other electrically.

When configuring the network, it is necessary to observe the following boundary conditions:

• Maximum line length between two modules for multi-mode fiber-optic conductors:
  • 5 km at 100 Mbit/s
  • 750 m at 1 Gbit/s
• Maximum line length between two modules for single-mode fiber-optic conductors:
  • 26 to 70 km at 100 Mbit/s
  • 10 to 120 km at 1 Gbit/s
• Maximum cable length of the TP cable between two SCALANCE X switches:
  • Max. 100 m at 10/100 Mbit/s with IE FC Cable 2x2 and IE FC RJ45 Plug 180
  • Max. 100 m at 1 Gbit/s with IE FC Standard Cable 4x2 (90 m), IE FC RJ45 Modular Outlet and patch cable (10 m)
  • Max. 10 m using patches with TP Cord

Commissioning and diagnosis

Setting options on the device itself:

• Redundancy manager RM;
  to establish a ring, a SCALANCE XR-300 is switched to RM mode. The Gigabit ports (electrical or optical) are preferably used as ring ports. The non-ring ports of the RM can be used freely for the connection of data terminals and networks. If the redundancy procedure MRP standardized by PROFINET is used, the RM is adjusted automatically.
• Signal mask;
  the signal mask is set to the current status of the SCALANCE XR-300 (setpoint) by pushbutton operation. The signal mask defines which ports and which power supplies are to be monitored. The signaling contact only reports an error when a monitored port or a monitored feeder fails (deviation of setpoint/actual status).
• IP address;
  the IP address is assigned via DHCP (Dynamic Host Configuration Protocol). If there is no corresponding server in the network, the IP address can be assigned using an enclosed software tool.

Diagnostic options on site:

• The following status information is displayed by LEDs on site:
  • Port status
  • Port mode (10/100/1000 Mbit/s, full/half-duplex)
  • Status of the two power supplies
  • Signaling contact status
  • Signal mask (setpoint status)
  • RM mode
  • Standby mode
• The status of the signaling contact is routed externally by means of floating relay contacts. This enables, for example, the module to be monitored via an input module from a controller.
• Monitoring via the Industrial Ethernet network;
  the following possibilities are available:
  • Remote via standard browser (Web-based management):
    Selection of SCALANCE XR-300 switches via the network from a PC with browser
  • Remote via SNMP V1, V2c, V3:
    Secure integration of SCALANCE XR-300 switches via the network into a network management system, e.g. SINEMA Server
  • Remote via PROFINET IO diagnostics:
    PROFINET diagnostic alarms from SCALANCE X-300 switches can be displayed using the relevant SIMATIC engineering tools and they can also be processed in the controller. 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.

Network management

The network management provides the following functions:

• Password-protected dial-up for "Administrator" (read and write authorization) and "User" (read only)
• Read-out of version and status information
• Setting the signal and standby mask and address information
• Fixed parameterization of the ports (data rates, half/full duplex)
• Setting of Spanning/Rapid Spanning Tree parameters
• Parameterization of the web management services
• Security
  • Ports can be connected or disconnected
  • Port-based network access control according to IEEE 802.1x
  • Authentication in accordance with IEEE 802.1x (available soon)
  • Support of Access Control List (ACL) (available soon)
• Output of statistics information
• Diagnosis of data traffic by means of a parameterizable mirror port with a standard commercial network analyzer
• Loading of new firmware versions or of the configuration data via the network by a TFTP server or directly via HTTP/HTTPS using a Web browser
• Saving the configuration data or log table via the network on a TFTP server

If faults occur in the network, the SCALANCE XR-300 switch can independently send error messages (traps) to a network management system or also e-mails to a predefined network administrator.

Remote monitoring (RMON) provides the following functions:
The SCALANCE XR-300 switch can collect statistics information according to the RMON groups 1 through 4. These include, for example, fault statistics that are kept for each port. This information can be read out through web-based management in the statistics sub-area.

To assist in selecting the right Industrial Ethernet switches as well as configuration of modular variants, the SIMATIC NET Selection Tool is available:

Online version:
http://www.siemens.com/snst

Offline version:
http://www.siemens.com/snst-download