SIEMENS
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Siemens IK PI · 2015
PROFINET/Industrial Ethernet
Industrial Ethernet Switches
SCALANCE XC-100 unmanaged
2
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Design
The SCALANCE XC100-4OBRs with rugged enclosures are
optimized for mounting on a standard rail and the S7-300 or
S7-1500 rail in different installation positions. Thanks to the
S7-1500 housing dimensions, the devices are suitable for inte-
gration into an automation solution with S7-1500 components.
The SCALANCE XC100-4OBRs with degree of protection IP20
are designed for operation in the control cabinet. The coated
PCBs (conformal coating) protect against condensation.
The SCALANCE XC100-4OBR features:
•
An enclosure in SIMATIC S7-1500 design with recessed fiber-
optic interfaces
•
A row of LEDs for displaying status information
(bypass, display mode, power supply)
•
A 4-pole terminal block for connecting the redundant supply
voltage (2 x 12 V DC ... 48 V DC)
•
A 2-pole terminal block for connecting the floating signaling
contact
•
A 2-pole terminal block for connecting the digital input signal
(switching signal)
•
A SET pushbutton for on-site configuration of the monitored
voltage range and the reset delay;
optimal adaptation of the reset delay:
- short reset delay for unmanaged network components
- long reset delay for managed network components
•
Four FO SC interfaces for integration into the FO network and
connection of network components;
simple connection to active network components thanks to
extensive range of fiber-optic patch cords with different fiber-
optic connectors
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Function
•
Integration into optical Industrial Ethernet line, star and ring
topologies
•
Fast bridging of network nodes using optical relays within
10 ms in the event of a fault (e.g. power failure)
•
Maintenance of network communication thanks to bridging of
the failed network components
•
No activation of the redundancy manager when resetting a
network component in MRP and HRP ring topologies thanks to
previous establishment of link;
this avoids a message burst in the network in the case of
planned maintenance work. Thanks to the configurable
connection delay, network components are not switched back
into the network until they have been fully powered up and the
link has been established (only on versions with TAP function).
•
Simple integration of the SCALANCE XC100-4OBR into
existing 100/1000 Mbit/s networks thanks to extensive
portfolio of FO adapter cables
•
Simple diagnostics via signaling contact and LED on-site
Network topology and network configuration
The Industrial Ethernet SCALANCE XC100-4OBRs with IP20
degree of protection are usually installed in a control cabinet
together with the network components to be connected.
When configuring the network, the following parameters have to
be taken into account for calculating the cable length between
two devices:
•
The line attenuation of the fiber-optic cables used
•
The attenuation of the optical relay
•
The maximum number of SCALANCE XC100-4OBR bypass
relays that can be activated simultaneously
Commissioning and diagnostics
Before commissioning the SCALANCE XC100-4OBR, the reset
delay and the voltage range to be monitored must be selected
using the SET pushbutton on the device.
The following information is displayed by LEDs on site:
• Bypass
•
Display mode
•
Power supply
The SCALANCE XC100-4OBR can also be monitored using the
floating signaling contact. A digital input contact enables remote
function checking of the relay.
© Siemens AG 2014