Beckhoff EL5031-0011 | EtherCAT Terminal, 1-channel encoder interface, EnDat® 2.2

The EL5031-0011 is used for the direct connection of an encoder with an

EnDat® 2.2 interface. The bidirectional interface enables automatic reading

of position values, diagnostic data, internal and external temperature values,

and the electronic nameplate of the encoder.

The EL5031-0011 is characterized by the fact that the position values for

finer resolution are processed according to the oversampling principle.

An encoder supply of 5 V – or optionally 9 V – is also provided. Extensive

functions enable both cost effective and faster commissioning.

Special features:

• high-resolution position detection using the oversampling principle

• conversion time: up to 40 ksps, new position value every 25 µs

• automatic reading of the electronic nameplate

• storage of user-defined data in the encoder

• position value output with up to 48 bits (depending on the encoder resolution)

• integrated encoder supply

A conventional EnDat® 2.2 interface registers a position value with each PLC

cycle and passes it on to the higher-level controller in the next fieldbus cycle.

The EL5031-0011 reads the current position value at several configurable and

equidistant times between two fieldbus communication cycles with an adjustable

whole number multiple (oversampling factor: n) of the cycle time. The transfer

of a packet of n position values of 48 or 32 bits each to the higher-level controller

takes place in the next fieldbus communication cycle. The minimum sampling

time here is 25 µs (40 ksps). Notable application areas of the EL5031-0011 can

be found in the field of high-resolution position measurement with in-line or

end-of-line measurement systems, especially in automated manufacturing processes.