Description
Beckhoff EL6731-0010 EtherCAT Terminal — description and application
The Beckhoff EL6731-0010 EtherCAT Terminal is a specialized communication module from the Bus Terminal family whose purpose is to provide a PROFIBUS slave interface within an EtherCAT system architecture. The module enables the integration of devices operating on the PROFIBUS DP standard with a higher-level EtherCAT bus — a typical requirement in extensive control cabinets and Beckhoff remote I/O systems.
The product is aimed primarily at automation integrators, machine builders, and maintenance departments that service or expand installations built on Beckhoff components. The Beckhoff EL6731-0010 EtherCAT Terminal allows up to six PROFIBUS slave devices to be connected without the need for an additional, separate bus master.
Key features
- PROFIBUS DP interface in slave version, integrated with the EtherCAT Terminal system
- D-Sub 9-pin communication connector designated X1
- Diagnostics via three LEDs: Run, BF (Bus Fail), CPU Err
- Markings approving operation in explosion-hazard zones (ATEX)
- Mounting on a standard DIN rail, compatible with the EtherCAT Terminal latching system
- E-bus supply voltage in line with the EL series standard (to be verified against the manufacturer's documentation)
Technical specifications
| Parameter | Value |
|---|---|
| Manufacturer | Beckhoff Automation GmbH & Co. KG |
| Device type | EtherCAT Terminal communication module — PROFIBUS slave |
| Catalog number (MPN) | EL6731-0010 |
| Communication protocol | PROFIBUS DP (slave) |
| Higher-level bus | EtherCAT |
| Connector | D-Sub 9-pin (X1) |
| Pin assignment | PIN 3-B, PIN 8-A, connector shield |
| Indicator LEDs | Run, BF, CPU Err |
| Operating temperature range | -25°C to +60°C (Ta) |
| Ex certification | II 3G KEMA 10ATEX0075 X Ex nA IIC T4 Gc |
| Wire (AWG) | AWG 28-14 |
| Mounting | DIN rail, EtherCAT Terminal system |
| Serial number | 17231533 (to be verified character by character) |
| Revision | Rev.Nr. 0021 (to be verified) |
| Country of manufacture | Germany |
| Condition | Brand new (factory new), unused, from surplus stock |
Applications
The Beckhoff EL6731-0010 EtherCAT Terminal is used wherever an existing PROFIBUS installation needs to be integrated into a newer EtherCAT architecture. Typical environments include production lines in the food, automotive and machine-building industries, where legacy PROFIBUS slave devices work alongside modern Beckhoff controllers.
The module is also used in control cabinet modernization projects, where maintaining compatibility with the existing PROFIBUS wiring helps reduce the cost of replacing the installation.
Condition and scope of delivery
The unit on offer is a brand new (factory new), unused Beckhoff EL6731-0010 EtherCAT Terminal from surplus stock (new-old-stock). The photos show the manufacturer's original packaging with the identification label window, as well as the module itself with no signs of mounting on the connectors or DIN rail.
Components of this type, even when new, are often no longer available through regular distribution or require long lead times from the manufacturer — which makes a new-old-stock offer a genuine alternative. Buyers should review all product photos, as they form an integral part of the description and the basis for assessing the item's visual condition.
Why RECOSTOCK
RECOSTOCK specializes in selling brand new (factory new) industrial automation components sourced from surplus stock and liquidations, at prices below regular distribution. Every order is fulfilled with a VAT invoice and secure industrial packaging, and shipping is from Poland.
We also help with selecting replacements and verifying catalog part numbers, which is particularly important for specialized components such as PROFIBUS/EtherCAT communication modules.
Compatibility and installation
The Beckhoff EL6731-0010 EtherCAT Terminal mounts on a DIN rail using the snap-on system of the EtherCAT Terminal family, sitting alongside other EL modules in the same I/O station. The module communicates with PROFIBUS devices via a D-Sub 9-pin connector, and with the higher-level network via the EtherCAT bus.
Before purchasing, compare the full catalog number against the machine documentation or the component being replaced to confirm that the module's version and functionality match your installation.
Documentation and similar products
Detailed technical information about this module can be found in Beckhoff technical documentation. We also encourage you to browse our full range — see other automation components at RECOSTOCK.
Frequently asked questions (FAQ)
How can I check whether this is the right replacement for my installation?
The catalog number EL6731-0010 is visible on the module's nameplate and on the label of the original packaging. We recommend comparing it character by character with the documentation of your installation or the component being replaced before purchase.
What does new-old-stock status mean?
New-old-stock means a brand new (factory new), unused product originating from surplus stock or a distributor's inventory liquidation — it is not a used item, even though it may have spent some time in storage.
Is the module suitable for use in explosion-hazard zones?
The nameplate shows the ATEX marking II 3G KEMA 10ATEX0075 X Ex nA IIC T4 Gc — the full conditions for use in Ex zones should be verified in the manufacturer's technical documentation.
Is a VAT invoice issued for the order?
Yes, every order at RECOSTOCK is fulfilled with a VAT invoice, and shipping is from Poland in secure, industrial-grade packaging.
What do the serial number and revision of this unit look like?
The module shows serial number 17231533 and revision Rev.Nr. 0021 — it is worth confirming these details before finalizing your purchase, especially if the quantity or a specific revision matters for your project. Please contact us to confirm availability.
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