Siemens 6ES7350-1AH00-0AE0 Programmable Logic Controller Module

Siemens 6ES7350-1AH00-0AE0 is a single-channel FM 350-1 counter module for the SIMATIC S7-300 system, engineered for high-speed counting tasks up to 500 kHz. It provides one counter input channel capable of handling pulses from 5V or 24V incremental encoders and 24V initiators, making it a compact solution for counting-based applications such as position tracking or event counting on machines, conveyors, or packaging lines. The module is designed to operate from a 24V DC supply and typically draws about 0.3 A, enabling straightforward integration into standard cabinet layouts. This revision, 6ES7350-1AH00-0AE0, is an older FM 350-1 counter module that Siemens has since discontinued and replaced with 6ES7350-1AH03-0AE0. In practice, it serves legacy installations needing a dedicated high-speed counter channel within the S7-300 family, delivering reliable pulse counting for simple, one-channel counting tasks without adding multiple I/O modules.