Wago 750-638 2-channel up/down counter DC 24 V, 500 Hz

Why Choose the WAGO 750-638 2-Channel Up/Down Counter Module?

The WAGO 750-638 is a reliable 2-channel up/down counter module designed for integration within the WAGO I/O System 750. It allows PLC and controller systems to monitor high-speed digital pulse signals from sensors, encoders and other counting devices used in industrial automation.

The module features two independent counters capable of processing 24 V DC binary pulses. Each counter can operate independently, allowing simultaneous monitoring of two pulse sources such as rotary encoders, proximity sensors or production counters. The collected count data is transmitted to the controller via the fieldbus for real-time monitoring and control. :contentReference

With a maximum switching frequency of 500 Hz and 16-bit counter resolution, the module provides accurate counting performance for machinery, conveyor systems and production monitoring applications.

Key Advantages

• Reliable 2-channel pulse counter for industrial automation systems.
• Supports 24 V DC binary pulse signals.
• Two independent counters for simultaneous signal monitoring.
• 16-bit counter resolution for precise counting.
• Compatible with WAGO I/O System 750 controllers and fieldbus couplers.
• Compact DIN rail module with CAGE CLAMP® spring terminals.

Key Features

• 2-channel up/down counter module.
• 16-bit counter depth per channel.
• Maximum switching frequency: approx. 500 Hz.
• Processes 24 V DC digital pulse inputs.
• Counters can be set, reset or locked via control bytes.
• Supports forward and reverse counting directions.
• Status LEDs indicate pulse detection and module operation.
• Seamless integration with WAGO I/O System 750.

Technical Specifications

• Manufacturer: WAGO
• Series: I/O System 750
• Model: 750-638
• Module type: 2-channel up/down counter
• Number of counters: 2
• Counter resolution: 16-bit per counter
• Maximum switching frequency: approx. 500 Hz
• Input signal voltage: 24 V DC
• Minimum pulse width: approx. 1 ms
• System supply: 5 V DC via system bus
• Field supply voltage: 24 V DC
• Connection technology: WAGO CAGE CLAMP®
• Mounting: DIN-35 rail
• Protection rating: IP20
• Operating temperature: 0 to 55 °C
• Module width: approx. 12 mm

Industrial Pulse Counting and Signal Monitoring

Pulse counting modules are widely used in automation systems to track events such as conveyor movement, production cycles or shaft rotation. By counting electrical pulses generated by sensors or encoders, PLC systems can determine speed, position or quantity within automated processes.

Modules such as the WAGO 750-638 provide a simple and reliable way to integrate pulse counting into distributed I/O architectures. The module processes digital signals locally and transmits the counter values to the controller via the fieldbus, allowing precise monitoring and control of machine operations. :contentReference

Typical Applications

• Production counting in manufacturing lines.
• Monitoring conveyor movement and speed.
• Pulse counting from proximity sensors or optical sensors.
• Basic encoder monitoring and machine cycle counting.
• Industrial process monitoring and automation systems.

Trusted by Automation Engineers

WAGO I/O System 750 modules are widely used by automation engineers to integrate sensors, encoders and control devices into scalable industrial control architectures.