The CNT204/R (Part Number 00012290-20) is a professional-grade, high-speed counter and position measurement module specifically engineered for the Bachmann M1 automation platform. This module is designed to bridge the gap between high-frequency field signals and the controller logic, offering four independent channels for pulse acquisition. The CNT204/R is a versatile solution for motion control, providing flexible interface options for both HTL (24V) pulse generators and RS422 (5V) incremental encoders. With its high-resolution 32-bit architecture and advanced timing analysis capabilities, it is a critical component for applications requiring nanosecond-level precision in velocity, frequency, or period duration measurements.
The CNT204/R combines robust electrical isolation with high-speed signal processing hardware.
Manufacturer: Bachmann Electronic GmbH
Model Designation: CNT204/R
Order Number: 00012290-20
Total Counter Channels: 4 independent channels
Resolution: 32-bit per channel
Signal Support (Standard): 4 x HTL single-line pulse generator inputs
Incremental Encoder Support: 2 x RS422 (A, B, Zero/Reference) inputs (optional channel use)
Max. Input Frequency: 20 kHz (Standard HTL), higher with RS422 configurations
Period Measurement Resolution: 42 ns (nanoseconds)
Input Filter: Integrated, adjustable from 183 Hz to 46.88 kHz
Galvanic Isolation: 500 V RMS between field signals and system bus
Power Supply Monitoring: Integrated voltage sensing for reliability
Power Consumption: Typ. 2.5 W from system bus
Operating Temperature: −30 °C to +60 °C (industrial extended range)
Country of Origin: Austria
Precision Timing Analysis: Beyond simple counting, the CNT204/R excels at period duration measurement with a resolution of 42 ns, making it ideal for high-accuracy speed calculations.
Mixed Logic Compatibility: Supports 5V RS422 differential signals and 24V HTL levels, ensuring compatibility with virtually any industrial rotary or linear encoder.
Dynamic Signal Filtering: Configurable hardware filters allow engineers to suppress high-frequency noise and contact bounce, ensuring signal integrity in high-EMI environments like wind turbine nacelles.
Integrated Encoder Power: The module can provide power directly to the connected sensors via the terminal block, simplifying cabinet wiring and reducing external component counts.
Deterministic Diagnostics: Each channel is equipped with a green status LED for immediate visual verification of pulse activity, while the system software monitors for undervoltage and hardware faults.
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