EL1252-xxxx is a 2-channel digital input terminal with timestamps (low-to-high, high-to-low):
Both terminals have the same product ID and process data and can therefore be configured as EL1252:
# One channel:
${SCRIPTEXEC} ${ecmccfg_DIR}addSlave.cmd, "SLAVE_ID=16, HW_DESC=EL1252"
These terminals are very powerful since they can latch the time of the positive edge and/or negative edge of the input signal (independent of the EtherCAT bus rate). These timestamps can then be used to correlate other data, like encoders or analog inputs with timestamps.
IMPORTANT Since the EL1252-0050 is a 5V terminal, it needs to be powered with 5V. If the terminal is powered with 24V, it will burn. The simplest way to achieve correct power supply is by adding an EL9505 (or similar) before the EL1252-0050. See ELxxxx for more information about terminal power levels.
Make sure the EL1252-0050 has a 5V power supply from an EL9505 (or similar) before powering the system. If the terminal is powered with the normal 24V it will most likely break.
A 5V signal will not be detected with the 24V version (EL1252), however the terminal will not be damaged. Furthermore, it is not a good idea to power the 24V version with 5V (EL9505, or similar).