Schneider Electric's FRQ204AS Frequency Input Module for Modicon TSX Compact PLCs provides a frequency input interface to bring external frequency signals into the control program. It is part of the FRQ 204 AS family (BFRQ 204) and is designed to plug into the TSX Compact platform, extending the automation system's capability to monitor rotational speeds, pulses, or other periodic signals. Used in industrial automation for process control, timing, and speed feedback applications, this module enables accurate frequency measurement to drive the PLC logic.
