PLCs, Power Supplies & Others

Precision Counting and Measurement for Compact Systems

The Allen-Bradley 1769-BOOLEAN provides high-speed counter functionality for CompactLogix and MicroLogix 1500 systems. This module captures pulse trains from encoders, flow meters, and high-speed sensors. It delivers precise count values to the controller for position and rate calculations. Engineers select this unit for motion control and production monitoring applications.

Detailed Technical Specifications

This section presents the complete technical parameters of the Allen-Bradley 1769-BOOLEAN. We emphasize precise input characteristics and counting capabilities for accurate system integration. The design prioritizes high-speed response and flexible configuration.

Physical Dimensions & Weight

Accurate physical data supports proper cabinet layout and DIN rail configuration. The Allen-Bradley 1769-BOOLEAN features a compact form factor for efficient space utilization.

• Dimensions (H x W x D): 118 mm x 35 mm x 87 mm

• Weight: 0.18 kg

• Origin: Made in USA (Rockwell Automation Manufacturing Facilities)

Counter Architecture and Channel Configuration

The module features two independent 32-bit counters operating simultaneously. Each counter accepts A, B, and Z quadrature encoder inputs for position tracking. Users configure counting modes including up/down, quadrature, and pulse/direction. This flexibility supports diverse measurement applications.

High-Speed Counting Capabilities

Each counter achieves a maximum count frequency of 1 MHz for high-speed applications. This capability captures fast-moving encoder signals and rapid pulse trains. The module processes counts independently of the controller scan time. Consequently, users achieve accurate position and speed measurements without missing pulses.

Input Characteristics and Sensor Compatibility

Four digital inputs accept 24 VDC signals from encoders, proximity sensors, and switches. Users configure each input as sinking or sourcing to match field devices. Inputs feature noise filtering for reliable operation in industrial environments. This versatility accommodates various sensor types and wiring configurations.

Output Configuration and Control Signals

Two transistor outputs provide 24 VDC at 0.5 A for driving indicators or control relays. Users configure outputs to trigger at preset count values. This on-board output capability reduces controller processing requirements. Fast response times enable immediate action upon reaching target counts.

Component Layout and Status Indication

The Allen-Bradley 1769-BOOLEAN contains a single PCB assembly with counting logic and I/O circuits. Front-panel LEDs provide individual status for each input and output channel. A green Power LED confirms proper backplane supply voltage. This comprehensive indication simplifies troubleshooting without external tools.

Installation and System Integration

Mounting this module requires a standard 35 mm DIN rail or panel mounting. It connects to CompactLogix and MicroLogix 1500 systems through the 1769 bus. Users can place the module anywhere within the I/O bank. This modular approach allows flexible system expansion.

Configuration and Programming

Configuration occurs through RSLogix 5000 or RSLogix 500 software. Users set counter modes, preset values, and output assignments during programming. The module stores configuration parameters in non-volatile memory. This approach eliminates hardware jumpers and simplifies setup.

Manufacturer Quality Standards

Allen-Bradley manufactures the 1769-BOOLEAN under strict quality control protocols. Each unit undergoes comprehensive testing for counting accuracy and input response. Therefore, users receive a product ready for immediate deployment. This commitment to quality aligns with Rockwell Automation reliability expectations.

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