Beckhoff EL1502 | EtherCAT Terminal, 2-channel digital input, counter, 24 V DC, 100 kHz

The 8-channel digital input terminal EL1258-0010 acquires fast binary control

signals from the process level and transmits them, in an electrically isolated

form, to the controller. The EL1258-0010 is the ground switching version of

the EL1258 and offers not only a higher channel density compared to the

EL1252. but also higher performance due to the multi-timestamp function.

Whereas the EL1252 can accept one edge change with timestamp per bus

cycle, the EL1258-0010 offers the possibility to register up to 32 events with

timestamps. The EL1258-0010 is synchronized with other EtherCAT devices

through the distributed clocks system, so that events in the whole system

can be measured with a uniform timebase.The EL1252-0050 digital input

terminal acquires the fast binary 5 V control signals from the process level

and transmits them, in an electrically isolated form, to the controller.

The EtherCAT Terminal has two channels that indicate their signal state via

light emitting diodes. The signals are furnished with a time stamp that

identifies the time of the last edge change with a resolution of 1 ns.

With this XFC technology, signal characteristics can be traced exactly

in time and correlated with the distributed clocks system-wide. With this

technology, machine-wide parallel hardware wiring of digital inputs or encoder

signals for synchronization purposes is often no longer required.

The switching thresholds of the input circuit are based on the CMOS level:

Signal voltage "0" < 0.8 V, signal voltage "1" > 2.4 V. The 5 V supply voltage

can be generated by the EL9505 power supply terminal and fed into the power

contacts.

Special features:

• 5 V inputs

• suitable for particularly fast signals due to very low input delay

• synchronized operation through distributed clocks XFC technology possible

• support of XFC technology timestamp

The EL1202 digital input terminal acquires the binary 24 V control signals

from the process level and transmits them, in an electrically isolated form,

to the higher-level automation unit. The EtherCAT Terminal contains two

channels whose signal state is indicated by LEDs.

The EL1202 can support the XFC Distributed Clocks technology, i.e. the

input data can be acquired synchronously with other data that are also

connected in a distributed manner to Distributed Clock terminals. 

The system-wide DC accuracy is << 1 μs. To this end the user has to

switch to terminal version EL1202-0100 (see documentation).

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