TwinSAFE SC: IO-Link terminal EL6224-0090
Run LEDs
1, 3, 5, 7
Status LEDs
9, 11, 13, 15
Power contact
+24 V
Power contact 0 V
Input 1 
+24 V 
Input 2 
+24 V 
Input 3 
+24 V 
Input 4 
+24 V 
+24 V
0 V
+24 V
0 V
+24 V
0 V
+24 V
0 V
Top view 
Contact assembly 
extended temperature range

EL6224-0090 | TwinSAFE SC: IO-Link terminal

The EL6224-0090 IO-Link terminal enables connection of up to four IO-Link devices, e.g. actuators, sensors or combinations of both. The parameterisation of the IO-Link devices with service data can be done from TwinCAT via ADS or very conveniently via the integrated IO-Link configuration tool.IO-Link devices can be operated in 3-wire connection mode.

With the aid of the TwinSAFE SC technology (TwinSAFE Single Channel) it is possible to make use of standard signals for safety tasks in any network or fieldbus. To do this, EtherCAT I/Os from the areas of analog input, position measurement or communication (4…20 mA, incremental encoder, IO-Link, etc.) are extended by the TwinSAFE SC function. The properties typical for the signals and the standard functions of the I/O components are retained. TwinSAFE SC I/Os differ optically from standard I/Os by a yellow stripe on the front of the housing.

The TwinSAFE SC technology enables communication via a TwinSAFE protocol. These connections can be distinguished from the usual secure communication via Safety over EtherCAT.

The data from the TwinSAFE SC components is fed via a TwinSAFE protocol to the TwinSAFE Logic, where it can be used in the context of safety-relevant applications. Detailed examples confirmed/calculated by the TÜV SÜD for the correct application of the TwinSAFE SC components and the respective normative classifications can be found in the TwinSAFE application manual.

Technical data EL6224-0090
Technology IO-Link input/output
Specification version IO-Link V1.1
IO-Link interfaces 4
Field voltage 24 V DC via power contacts
Connection 3-wire
Data transfer rates 4.8 kbaud, 38.4 kbaud and 230.4 kbaud
Cable length max. 20 m
Power supply via E-bus and power contacts
Electrical isolation 500 V (E-bus/signal voltage)
Power contacts yes
Supply current for devices 500 mA per device
Current consumption E-bus typ. 120 mA
Special features TwinSAFE SC, each channel parameterisable in TwinCAT
Weight approx. 60 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Approvals/markings CE, UL, ATEX
Ex-Marking II 3 G Ex nA IIC T4 Gc
Related products  
TwinSAFE SC TwinSAFE SC technology
EK1960 TwinSAFE Compact Controller
EL6910 TwinSAFE Logic
IO-Link For further IO-Link products please see the system overview.