Product Description:

The EL1512 is a single-channel counter input terminal produced by Beckhoff for the EL EtherCAT Terminals series. The module attaches to an EtherCAT I/O string and relays incremental sensor pulses to the controller, integrating position or event counts into real-time automation tasks such as piece tracking, flow metering, and length measurement. By embedding the counter directly inside the terminal block, Beckhoff removes the need for stand-alone counters and offers distributed signal acquisition that fits on the same DIN rail as drives, PLC CPUs, and other field devices.

Internally, the counter stores data with a depth of 32 bits, delaying overflow during large tally operations. Pulse edges arrive at up to 1 kHz, so proximity switches or encoders operating at moderate speeds are captured without loss. Two counting modes are available: an up/down configuration for bidirectional signals and a one-way option for unidirectional sources. The input circuit draws only 5 mA and meets the EN 61131-2 Type 1 logic profile for current and voltage thresholds. Electrical isolation of 500 V separates field wiring from the backplane, and support for variable installation orientations provides flexibility when arranging the control cabinet.

The EtherCAT backplane supplies 130 mA of E-bus current to power the terminal’s electronics, while external sensors draw their supply from the system’s 24 VDC field voltage. Slide-in assembly onto a 35 mm mounting rail supports straightforward installation and extension of existing terminal stacks. The terminal has no conformal coating, and the No CoE Storage option is present to prevent unwanted retention of CoE data. The housing provides IP20 protection against accidental finger contact and is intended for use inside a control panel. Input states switch high above 15 VDC and low below 5 VDC, providing clear noise margins in typical field circuits.