Product Details

Modicon 140CRA21210 is a professional dio drop interface and remote i/o adapter belonging to the Modicon Quantum automation platform. This quantum communication module acts as a distributed I/O gateway, connecting the main Quantum PLC processor with remote DIO drop racks to transmit input and output data reliably across field networks. It converts backplane signals into serial bus data and delivers feedback from remote field devices back to the host controller. As a discontinued legacy spare, this dio drop interface is widely used for maintenance and retrofit of old Quantum systems, serving as a drop-in replacement to restore remote signal transmission without replacing the whole control system.

Basic Parameters

Brand: Modicon

Model: 140CRA21210

Product Type: DIO Drop Interface / Remote I/O Adapter

Series: Modicon Quantum

Rated Supply Voltage: 115 / 230 V AC

Supply Range: 85 V to 276 V AC

Rated Power: 50 VA

Output: 5.1 V, 3 A nominal

I/O Words: 30 input words / 32 output words

Port: One redundant DIO communication port

Mounting: Standard Quantum rack mount

Product Status: Discontinued legacy spare

Net Weight: Approximately 0.42 kg

Supported Functions

This dio drop interface supports bidirectional DIO bus communication between the Quantum CPU and distributed remote I/O racks. The remote i/o adapter performs data packaging, checksum verification and bus fault diagnosis to locate communication interruptions quickly. This quantum communication module supports hot replacement under proper power management and allows flexible expansion of remote field acquisition points for distributed automation layouts.

Core Functions

As a dedicated remote gateway, this dio drop interface routes real-time I/O data between the central Quantum processor and remote drop stations. It maintains stable bus timing and reports link failures for rapid on-site troubleshooting. This remote i/o adapter serves as a direct spare to rebuild distributed I/O links and keep legacy production systems running normally.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

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

Housing: Standard industrial plastic and metal module shell

Protection: Built-in short-circuit and overvoltage protection

Anti-interference: EMC compliant for heavy industrial environments

Compatibility: Matches 800 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 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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