EtherCAT I/O Products, Position Measurement

EtherCAT I/O Products for position, frequency, displacement or angle measurement offer advantages through

• fine scalability of channel density and functional scope
• integrated sensor supply
• realization of simple automation solutions, even for complex systems, due to numerous functions
• synchronization of the position value with other processes thanks to the distributed clocks function

The signal recording differs in:

Absolute position detection

Enables the evaluation of linear and rotary encoders and measuring probes as well as position measuring systems and absolute encoders with SSI (synchronous serial interface), EnDat 2.2 or BISS-C interface. Many modules are equipped with an integrated sensor supply. Extensive parameterization options allow all standard sensors in both single-turn and multi-turn versions to be connected and evaluated. In addition, it is possible to evaluate inductive displacement measuring sensors – these include measuring probes in LVDT and half-bridge versions or inductive angular position sensors in an RVDT version.

Incremental position detection

Incremental signals with SinCos 1 VPP, differential signals with RS422, 5 V single-ended signals of TTL or open collector encoders as well as 24 V HTL encoder signals can also be evaluated. 24 V digital inputs can be used to store, disable and set the counter value. Functions such as micro-increments, timestamp and oversampling also enable finely resolved position detection. The EtherCAT distributed clocks function ensures an exact synchronization of the position value with other processes.

Overview product series in protection class IP20:

• BKxxxx/EKxxxx/EKMxxxx: EtheCAT Couplers are the link between the EtherCAT protocol at fieldbus level and the EtherCAT Terminals
• EJxxxx: EtherCAT Plug-in modules
• ELxxxx/EMxxxx: Standard and Special EtherCAT Terminals
• ELMxxxx: EtherCAT Terminals in robust metal housing
• ELXxxxx: EtherCAT Terminals for connecting intrinsically safe signals

Product series in protection class IP67:

• EPxxxx: EtherCAT Box modules for decentralized, modular EtherCAT network and power architectures. Available in industrial, zinc die-cast or stainless steel housings (EPxxxx/ERxxxx/EQxxxx)
• EPPxxxx: EtherCAT Box modules with EtherCAT P: Communication and power in a single 4-wire Standard Ethernet cable. Available in industrial or zinc die-cast housings (EPxxxx/ERxxxx)
• EPXxxxx: EtherCAT Box modules with intrinsically safe inputs/outputs

Several EtherCAT I/O Products are offered with a factory calibration or external calibration certificate (ISO17025 or DAkkS).

Integration of standard signals in safety applications: The TwinSAFE SC (Single Channel) technology enables the use of standard signals for safety tasks in any networks of fieldbuses. To do this, EtherCAT Terminals from the areas of analog input, angle/displacement measurement or communication are extended by the TwinSAFE SC function. The typical signal characteristics and standard functionalities of the I/O components are retained. TwinSAFE SC I/Os are distinguished from standard I/Os by a yellow strip on the front of the housing and the product name extension -009x.