Description

Product Description

The Yokogawa AAP135-S00 S2 is a high-density, high-performance pulse input module designed for seamless integration within Yokogawa Distributed Control Systems (DCS). This module serves as a critical interface for processing high-speed dynamic signals from various industrial field sensors, such as flowmeters, tachometers, and rotary encoders. By converting raw pulse trains into precise digital telemetry, the device enables real-time velocity, totalization, and frequency monitoring across demanding industrial automation environments.

Engineered with comprehensive channel-to-channel and channel-to-system isolation, the hardware mitigates ground loops and dampens electromagnetic interference common in heavy industrial processing plants. The technical architecture accommodates versatile field wiring configurations, enabling direct compatibility with dry contact ON/OFF signals, voltage-based pulses, and current-loop pulse variations. Consequently, plant operators can leverage this module to maintain stable data ingestion and high-speed telemetry under rigorous operational conditions.

Technical Characteristics

• Model Identification: AAP135-S00 S2
• Manufacturer: Yokogawa Electric Corporation
• System Compatibility: Distributed Control System (DCS)
• Signal Input Capacity: Eight isolated input channels
• Wiring Configurations: Support for 2-wire and 3-wire sensor topologies
• Input Types Type: Contact ON/OFF, voltage pulse, and current pulse signals
• Frequency Processing Range: 0 Hz to 10 kHz
• Minimum Pulse Width Detection: 40 microseconds
• Data Refresh Cycle: 2 milliseconds update period
• Dielectric Isolation Voltage: 500 V AC sustained for one minute
• Internal Pull-Up Impedance: 68 kΩ
• Power Consumption Parameters: 300 mA maximum at 5 V DC; 400 mA maximum at 24 V DC
• Physical Mass: 0.3 kg
• Module Dimensions: 3.3 cm x 10.7 cm x 13.0 cm
• International HS Code: 8537101190
• Lifecycle Status: Active production

Industrial Applications

• Flow Totalization: Processing high-speed pulse trains from turbine and positive displacement flowmeters to calculate precise volumetric throughput.
• Rotational Speed Monitoring: Capturing frequency outputs from proximity switches and encoders to monitor industrial motor and turbine velocities.
• Material Handling and Batching: Managing discrete pulse counts for exact material measurement, conveyor positioning, and automated batching operations.
• Power and Energy Utilities: Recording electrical consumption pulses from utility meters to optimize power management strategies.