Product Details

Modicon ZAE105 is a dedicated high speed counter module and reliable pulse counting card developed for Modicon A250 / ZB5 series PLC racks. This fast counter card features two independent high-speed counting channels with 24‑bit resolution, capable of capturing fast pulse signals from encoders, proximity sensors and flow pulse transmitters without missing pulses. It supports direction counting, frequency measurement and preset target counting, and can trigger interrupt actions once the preset count value is reached. By offloading pulse sampling work from the main CPU, this high speed counter module prevents slow scan cycles from causing counting loss. As a discontinued legacy spare, this pulse counting card serves as a drop‑in replacement for aged counter hardware, helping legacy machinery recover accurate speed, position and batch counting functions.

Basic Parameters

Brand: Modicon

Model: ZAE105

Product Type: 2‑Channel Fast High Speed Counter Module

Compatible Rack: Modicon A250 / ZB5 series PLC backplane

Counting Channels: 2 independent channels

Resolution: 24‑bit unsigned

Count Range: 0 to 16,777,215

Signal Type: Incremental encoder pulse, direction signal

Functions: Pulse counting, frequency calculation, preset trigger

Mounting: Standard slot mounting for A250 chassis

Product Status: Discontinued legacy spare

Net Weight: Approximately 0.32 kg

Supported Functions

This high speed counter module supports bidirectional quadrature counting, pulse frequency sampling and programmable preset comparison. The pulse counting card can latch count values, output trigger signals and transmit real‑time count and frequency data to the PLC backplane. This fast counter card supports built‑in self‑diagnosis for signal faults and short circuits, and retains count parameters after power cycle for convenient commissioning. It works together with the host PLC to complete length measurement, rotational speed monitoring, product batch counting and positioning tracking.

Core Functions

As a professional pulse counting card, this high speed counter module captures high‑frequency pulse signals and converts pulse information into digital count and speed data for the controller. Its independent hardware counting circuit guarantees stable acquisition even for rapid pulse streams. This fast counter card acts as a direct spare to restore precision pulse acquisition for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Compact industrial module shell

Protection: Input overvoltage suppression

Anti-interference: Optical isolation for pulse input channels

Compatibility: Matches A250 / ZB5 series backplane and compatible peripheral modules

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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