Siemens 6ES7 350-2AH01-0AE0 Analog Input Module

Siemens 6ES7 350-2AH01-0AE0 Counter Module (FM 350-2) is an eight‑channel counter module for SIMATIC S7‑300 automation systems. It accepts 24 V encoder signals on eight independent inputs and counts pulses up to 20 kHz per channel, enabling high‑speed counting for accurate frequency and speed measurements as well as cycle‑duration analysis. Common applications include speed monitoring and frequency measurement on conveyor lines, encoder‑based position counting, and dosing‑control tasks in packaging and processing equipment. This module is designed to plug into the S7‑300 backplane and integrate with Siemens hardware and software for configuration and diagnostics. The part number 6ES7 350-2AH01-0AE0 is listed as FM 350-2 in Siemens catalog pages and spare‑part listings, confirming its eight‑channel, 24 V encoder input capability and 20 kHz per‑channel maximum input frequency.