2-channel BiSS-C interface EL5042
Enabled LED1
Error LED1
Enabled LED2
Error LED2
ENC Supply
Power contact
+24 V
Power contact 0 V
Data 1+ 
Clock 1+ 
ENC supply 
Data 2+ 
Clock 2+ 
ENC supply 
Data 1–
Clock 1–
Data 2–
Clock 2–
Top view 
Contact assembly 
extended shock and vibration range

EL5042 | 2-channel BiSS-C interface

The EL5042 2-channel BiSS-C interface can be used for direct connection of BiSS-C encoders. As a master, the EL5042 sends the clock signal to the BiSS-C slave (encoder), which transmits the position data. Here a position value can be represented in the process image with up to 64 bits, depending on the resolution of the connected sensor. Furthermore, the EL5042 enables the reading of warning and error status bits, which are represented separately in the process image. Different operation modes, transmission frequencies and frame widths can be configured. The EL5042 supports unidirectional BiSS-C communication.

The EL5042 has distributed clocks, so that the position value can be read with precise system synchronicity. If the distributed clock function is deactivated, the EL5042 cycles are synchronised with the EtherCAT cycle.

Technical data EL5042
Encoder type BiSS-C, unidirectional
Number of channels 2
Encoder connection D+, D-, C+, C-
Encoder operating voltage optionally 5 V DC or 9 V DC
Encoder output current max. 0.5 A for both channels
Supply voltage electronics 24 V DC (via power contacts)
Resolution max. 64 bit position, 2 bit status, 16 bit CRC
Data transfer rates up to 10 MHz, variable
Current consumption power contacts typ. 150 mA
Current consumption E-bus typ. 120 mA
Distributed clocks yes
Special features adjustable baud rate, data length, two status bits (error and warning) can be evaluated separately
Electrical isolation 500 V (E-bus/field potential)
Weight approx. 50 g
Operating/storage temperature 0…+50 °C/-25…+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 CE