The Siemens 6ES7350-2AH00-0AE0 is an 8-channel high-speed counter module designed for the SIMATIC S7-300 PLC system. As a Function Module (FM 350-2), it provides advanced counting and measuring capabilities that offload time-critical tasks from the central CPU. This module is essential for applications requiring precise frequency measurement, speed monitoring, and high-speed position tracking. By supporting counting frequencies up to 20 kHz and offering localized reaction capabilities, it ensures high-performance motion control and operational safety, playing a key role in preventing process drift and minimizing system latency.
Features
8 independent counting channels for high-speed signal processing.
Supports 24 VDC encoders and sensors directly.
Configurable counting modes: continuous, single, and periodic.
Integrated digital outputs triggered by predefined setpoints.
Deterministic response times by offloading tasks from the S7-300 CPU.
Ideal for high-speed gating, batching, and frequency measurement.
Applications
This module is widely used in industrial automation environments including food and beverage packaging, industrial metal processing, and chemical dosing systems where high-speed pulse counting and precise position monitoring are required.
Technical Specifications
Model
6ES7350-2AH00-0AE0
Brand
Siemens
Series
SIMATIC S7-300 / FM 350-2
Module Type
High Speed Counter Module
Number of Channels
8
Max Counting Frequency
20 kHz
Input/Encoder Voltage
24 VDC
Operating Temperature
0 to 60 deg C
Installation Guidelines
Ensure the S7-300 rack power is disconnected before installing or removing the module.
Mount the module onto the standard S7-300 DIN rail and secure it using the integrated locking mechanism.
Use shielded cables for encoder and sensor inputs to minimize electromagnetic interference (EMI).
Ensure proper grounding of the module chassis to the rack backplane to maintain signal integrity.
Verify that the 24 VDC power supply meets the module's voltage and current requirements before connection.
Handle with care to prevent electrostatic discharge (ESD) damage to the module electronics.
FAQ
Is this module compatible with all S7-300 CPUs?
The FM 350-2 is designed for the SIMATIC S7-300 system. Please verify your specific CPU configuration and hardware catalog in STEP 7 to ensure compatibility with the module's firmware version.
Can this module be used as a replacement for the 6ES7350-2AH01-0AE0?
The 6ES7350-2AH00-0AE0 is an earlier version of the FM 350-2. While it remains critical for maintaining legacy systems, please consult your system documentation if you are considering a migration to the newer 6ES7350-2AH01-0AE0 version, as configuration changes may be required.
