1 year warranty
Industrial Ethernet Devices
Industrial Ethernet devices are the hardware components that connect SIMATIC S7 controllers and field devices to PROFINET and Industrial Ethernet networks, enabling real-time data exchange with SCADA systems, MES platforms, OPC UA servers, and other networked automation equipment. PLC Direct stocks Siemens SIMATIC NET industrial Ethernet devices, including communications processors, managed and unmanaged switches, and Industrial Ethernet field accessories, available as surplus sealed, refurbished, and used hardware, subject to inventory status.
Where are Industrial Ethernet Devices used in industrial environments?
Industrial Ethernet devices are used wherever a SIMATIC controller must participate in a PROFINET IO network, establish TCP/IP connections to supervisory systems, or support secure remote access and telecontrol protocols over an Ethernet infrastructure. They are standard replacement hardware for any SIMATIC-based facility that has transitioned field-level communication from serial or PROFIBUS to Industrial Ethernet, and where aging CP or CM modules must be maintained without interrupting the installed network architecture.
Facilities and operations that depend on industrial Ethernet devices include:
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SIMATIC S7-300 systems running as PROFINET IO controllers that require a CP 343-1 module to manage IO device communication across a PROFINET ring, where the onboard CPU interface cannot support the required number of IO devices or the necessary redundancy configuration.
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S7-400 installations in process plants that use a CP 443-1 to maintain simultaneous Industrial Ethernet connections to both a plant SCADA system and a PROFINET IO device network without splitting the CPU's communication resources.
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S7-1200 systems in utilities and infrastructure operations requiring a CP 1243-1 to connect to a control center over DNP3 or IEC 60870 telecontrol protocols via an existing Ethernet WAN, while the CPU's native PROFINET port continues to manage local IO.
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Facilities upgrading field-level Ethernet cabling that require Siemens Industrial Ethernet FastConnect RJ45 or M12 connectors to terminate IE FC cable correctly at SCALANCE switches, ET 200 remote I/O stations, and PROFINET field devices.
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Automotive and manufacturing plants using SCALANCE X204-2 managed switches to build PROFINET ring topologies with MRP redundancy between robot controllers, safety PLCs, and distributed I/O systems, where switch failure would halt the entire production segment.
A failed industrial Ethernet device at the controller level removes the SIMATIC CPU from the network entirely, halting data exchange with all connected SCADA systems, IO devices, and remote engineering stations until the module is replaced with a matching unit.
Which brands of Industrial Ethernet Devices does PLC Direct stock?
This collection comprises Siemens SIMATIC NET hardware across four product families.
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Siemens CP 343-1 Series: In-rack communications processors for SIMATIC S7-300, including the CP 343-1 and CP 343-1 Lean, providing PROFINET IO controller and IO device functionality alongside ISO and TCP/IP communication over Industrial Ethernet.
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Siemens CP 443-1 Series: In-rack communications processors for SIMATIC S7-400 systems, supporting PROFINET IO controller operation, S7 routing, IP access control, and PROFIenergy over dual Industrial Ethernet ports.
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Siemens CP/CM 1200/1500 Series: Communications modules for SIMATIC S7-1200 and S7-1500 platforms, including the CP 1243-1 for Ethernet and telecontrol protocol connectivity and the CM 1542-1 for PROFINET IO controller and device operation on S7-1500 systems.
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Siemens SCALANCE X and IE Accessories: Managed and unmanaged Industrial Ethernet switches, including the SCALANCE XB-000, XC-100, and X204-2 families, alongside FastConnect RJ45 and M12 field connectors for terminating Industrial Ethernet cabling at switches and PROFINET field devices.
PLC Direct stocks Siemens industrial Ethernet devices as surplus sealed, refurbished, and used hardware, depending on available inventory.
What should you know before ordering Industrial Ethernet Devices?
Hardware condition options: Surplus sealed units are unused and in original manufacturer packaging. Refurbished units have been inspected and restored to functional operating condition. Used units are tested and operational, with conditions stated on each product listing.
Compatibility and part identification: SIMATIC NET CP and CM modules are matched by controller family. A CP 343-1 is specific to S7-300 and cannot be installed in an S7-400 or S7-1200 chassis; the full part number, including the generation suffix, must match the installed module to ensure firmware and feature compatibility. For SCALANCE switches, confirm whether the installed unit is managed or unmanaged before ordering, as these are not interchangeable in network designs that rely on PROFINET IO device functionality, ring redundancy, or VLAN segmentation.
Warranty: All industrial Ethernet device hardware purchased from PLC Direct carries a standard 1-year warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products. PLC Direct supplies industrial Ethernet device hardware for replacement and maintenance purposes and does not provide system design, programming, or integration services.