Bachmann CNT204/R 00012290-20 M1 System Counter Module

Product Overview

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.

Technical Specifications

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

Core Performance Features

• 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.