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Kendrion N.V.
Vesta Building - 5th floor
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1101 CN Amsterdam
The Netherlands
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Kuhnke FIO OC
Counter-Encoder (CoE)

694 434 53

The Kuhnke FIO Safety OC Counter/Encoder module counts binary pulses and transmits the counter readings, electrically isolated, to the higher-level safety PLC. 2 counters are available. The module can operate as an A-B-Ref or up/down counter. It can be switched between single and multiple evaluation of the encoder signals. In normal operation, the digital inputs and the output are used as digital I/Os with control or status display via the bus. By configuring accordingly, the output can also be controlled depending on a counter. Furthermore, input signals can be used for clearing, initialising or freezing the counter status.

In addition, with the Kuhnke FIO OC module, these data are transmitted via a protected telegram and can thus be used in conjunction with the Kuhnke FIO Safety PLC in the context of safety-relevant applications.

Typical applications of the OC modules with two different measuring methods are:

  • Speed monitoring for the realisation of Safe Position (SP) and Safe Speed (SLS).

Technical details

Description Value
Function Counter, Multifunctional, OC technology 
Model Control cabinet module 
Digital I/Os (integrated) not included 
Analogue I/Os (integrated) not included 
Integrated function Safe analogue value transmission to the Safety PLC, 2 x counter/encoder: RS422 32Bit 5MHz or 5/24V SE 32 Bit 1,6 MHz or SSI 18-32 Bit 80-1000kbit/s or EnDAT 2.1 100 kHz-2 MHz or 6 x event counter HTL/TTL 32 Bit 1kHz 
Interfaces not included 
Product status Standard product 
Field bus interfaces EtherCAT / CoE 
Type of connection female plug with PUSH IN spring connection 
Status indication LEDs allocated to the point of termination 
Housing material Aluminium frame, plastic housing 
Dimensions (W x H x D) 25 x 120 x 90 mm 
IP-Protection Class IP 20 
Supply voltage 24 V DC (-15% ... +20%) 
Operating temperature 0 ... +55°C 
Immunity Zone B according to EN 61131-2 
Certifications CE, UL