EL6910

    In-Stock, Ships Today

Preparing your secure checkout page...

The Beckhoff EL6910 is an EtherCAT terminal from the EL EtherCAT Terminals series, featuring freely programmable safety logic with a Safety Integrity Level of SIL 3. The terminal operates at a supply voltage of 24V DC, consumes approximately 210mA from the E-bus, and is DIN rail mounted.

Warranty
Wake Industrial Warranty

Quote Request Form:

To contact sales for pricing and lead time:

Payment Methods

Visa
Mastercard
AmEx
Wire Transfer

Shipping Methods

DHL
UPS
FedEx
Freight

Our Credentials

Cary Chamber
DUNS Registered
SAM Registered
BBB Accredited

Product Description:

This EL6910 model is an EtherCAT terminal that integrates with automation setups with minimal configuration and fast commissioning. The product comes from Beckhoff’s EL EtherCAT Terminals product line, supporting standardized hardware modules across various automation applications. Multiple inputs and outputs per configuration allow tailored Input/Output assignments to maintain diverse control tasks with greater flexibility. With an EtherCAT connection, users can get instantaneous response for precise process synchronization and high-speed data exchange.

A supply voltage of 24 V DC -15…+20% ensures stable power delivery for consistent module operation. Around 210 mA of current consumption from the E-bus can enable energy usage feasible. Drawing about 50 mA from load voltage provides low auxiliary power demands that reduce system power losses. A maximum coupler address of 255 enables extensive device addressing that supports large network topologies. Safety functions for this product include programming for safety logic which allows customized fail-safe operations to match specific application requirements. The module achieves Safety Integrity Level SIL 3 that meets IEC 61508 standards and delivers high reliability in critical safety tasks.

An IP20 degree of protection provides basic finger-safe guarding that ensures compliance with industrial safety norms. For part number EL6910, the operating temperature range spans 0°C to +55°C guaranteeing reliable performance under common factory conditions. With dimensions measuring 12 mm width by 100 mm height and 68 mm depth, the terminal fits compact installation spaces. Direct DIN rail mounting enables quick slotting into control cabinets thus improving setup efficiency. A cycle time of approx. 1 millisecond supports rapid I/O refresh rates, enhancing real-time control responsiveness. The weight of about 50 grams keeps overall system mass low and that further simplifies handling and reduces load on mounting rails.

Connection
EtherCAT
Current Consumption (from E-bus)
approx. 210 mA
Current Consumption (from Load Voltage)
approx. 50 mA
Degree Of Protection
IP20
Dimensions (w X H X D)
12 mm x 100 mm x 68 mm
Inputs/outputs
various (per configuration)
Max. Coupler Address
255
Mounting
DIN rail
Operating Temperature
0°C ... +55°C
Safety Functions
Freely programmable for safety logic
Safety Integrity Level
SIL 3 (IEC 61508)
Supply Voltage
24 V DC (-15%/+20%)
Type
EtherCAT terminal
Fault / LED indication  Likely cause Corrective action
Diag 3 LED off + Diag 4 LED steady red Supply 24 V out of tolerance or terminal over-temperature Measure the supply at the power-contact pins (must be 20.4…28.8 V DC) and ensure ambient ≤ 55 °C; restore voltage/cooling and reset the terminal.
Diag 3 off + Diag 4 1 flash Function-block error in at least one TwinSAFE group (e.g., logic overflow, missing input mapping) Open the Safety Editor, read the diagnostic object FA00hex, correct the block or variable that is flagged, rebuild, download and re-enable.
Diag 3 off + Diag 4 2 flashes Communication error (FSoE/PROFIsafe connection lost) Check EtherCAT cabling, partner device power, and that the TwinSAFE address still matches; restart the connection from within TwinCAT.
Diag 3 off + Diag 4 3 flashes Combination of function-block and communication error Resolve individual F-block or fieldbus faults first (see rows 2 & 3) until Diag LEDs clear, then re-activate the safety project. 
PWR LED dark at power-up No or low 24 V supply on power contacts Verify cabinet PSU fuse/breaker, wiring polarity, and that supply is PELV 24 V DC per spec; restore and cycle terminal.
RUN (ECAT) LED dark No EtherCAT link or master in Init state Inspect RJ45/link wiring, confirm master is in OP state, run an Online Scan in TwinCAT and activate configuration.
Diag 2 LED 1 flash µC1 supply above limit – over-voltage event Check cabinet PSU set-point and transient suppression; replace PSU if regulation faulty and clear fault.
“Project checksum mismatch” on startup Loaded safety project differs from CRC stored in EL6910 (after incremental download) Perform Reset Safe Configuration in TwinCAT, rebuild and download the current project, then acknowledge C0500.
Global‐watchdog timeout (terminal goes to safe-state) Safety task not updated within watchdog time (2 – 60 000 ms) Shorten cycle-time in Safety Editor or increase watchdog parameter; ensure PLC is not halted during online change
“Cycle-time exceeded” message in Diagnostics tab Safety project complexity now requires > configured base cycle Optimise program (remove unused blocks, simplify networks) or raise the base cycle parameter, then download. 
Terminal Primary function Max safe connections Integrated logic PROFIsafe support TwinSAFE SC Notable point
EL6910 Dedicated safety controller (Boolean + analog) 212 Yes Master and slave Yes Customising & diagnostic history on-board 
EL6900 Safety controller, Boolean only 128 Yes No No First-gen logic terminal—robust but no analog blocks
EL6930 Safety controller with built-in PROFIsafe gateway 128 Yes Slave (one channel) No Ideal when a Siemens/Profinet F-PLC must coexist
EL1918 8-ch safe digital input with optional logic 128 Optional (same set as EL6910) No No Can act as micro safety PLC right at the sensor rail
EL2904 4-ch safe digital output (0.5 A) — (I/O only) No No No Outputs include current-measurement & cross-short test
EL1904 4-ch safe digital input No No No Cost-effective SIL 3 input terminal for E-stop circuits
LED pattern or code  What it means
Diag 2 flashes × 1 (Diag 1 green) Function-block error in at least one TwinSAFE group 
Diag 2 flashes × 2 Communication fault in a TwinSAFE group (FSoE partner lost) 
Diag 2 flashes × 3 Combined function-block + communication error 
Diag 2 flashes × 4 General logic error in a TwinSAFE group 
Diag 2 flashes × 1 with Diag 1 off µC1 supply over-voltage (> 28.8 V)
Diag 2 flashes × 2 with Diag 1 off µC1 supply under-voltage (< 20.4 V) 
Diag 2 flashes × 3 with Diag 1 off µC2 supply over-voltage 
Diag 2 flashes × 4 with Diag 1 off µC2 supply under-voltage 
Diag 2 flashes × 5 with Diag 1 off Maximum internal temperature exceeded 
Diag 3 red + Diag 4 red (steady) Global fault/shutdown on both CPUs – terminal must be power-cycled and fault source cleared 

Frequently Asked Questions about EL6910:

Q: What safety integrity level does the EL6910 achieve for critical operations?

A: The EL6910 meets SIL 3 standards under IEC 61508 for rigorous safety requirements. It actively enforces high reliability in fail-safe processes.

Q: How adaptable are I/O options on the EL6910 for varied control scenarios?

A: The EL6910 offers various inputs and outputs per configuration to suit diverse applications. Industry users can configure I/O sets without adding external modules.

Q: Does the EL6910 maintain communication speed under tight cycle demands?

A: The EL6910’s cycle time of approximately 1 ms ensures fast data refresh in demanding control loops. This tight cycle supports precise real-time automation tasks.

Q: What is the operating temperature range for the EL6910 in harsh environments?

A: The module operates from 0 °C to +55 °C for most factory settings. It performs reliably within industry-standard temperature spans.

Q: How does the EL6910 protect against accidental contact in control cabinets?

A: This terminal provides an IP20 degree of protection for finger-safe handling and it ensures operator safety during maintenance.


Internal Product Review

  • ‘‘With the EL6910’s various inputs and outputs, engineers can tailor I/O layouts without extra modules. The 24 V DC range offers stable voltage margins and pulling just 50 mA from the load voltage means lower power losses for efficient continuous operation.’’

Motion Industries logo
3M logo
IBM logo
Gexpro Logo
Caterpillar logo
NASA logo
Ford logo
Vallen logo