The Schneider Electric Modicon TM218LDA40DRN is a high-performance compact logic controller designed specifically for complex machine control and industrial automation applications. As part of the Modicon M218 series, this controller integrates a high density of I/O points, powerful communication capabilities, and advanced counting functions into a small footprint, making it an ideal solution for OEMs and system integrators looking for a reliable “all-in-one” control solution .
With its balance of 24 digital inputs and 16 relay outputs, the TM218LDA40DRN eliminates the need for immediate expansion in many standard applications, while still offering the flexibility to add TM3 expansion modules for future scalability .
Key Features
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High I/O Capacity: Features 40 discrete I/O points (24 inputs / 16 relay outputs) for direct machine control .
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High-Speed Counting: Equipped with 2 Fast Digital Inputs capable of functioning as 10 kHz HSC (High-Speed Counters) for precise position and speed monitoring .
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Robust Relay Outputs: Supports relay outputs rated up to 2 A per point (250 Vac / 30 Vdc) with a mechanical life of 20 million cycles, suitable for diverse load types .
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Integrated Connectivity: Includes an Ethernet port and RS485 serial link supporting Modbus communication for seamless integration into industrial networks .
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Flexible Power Supply: Accepts a 100…240 Vac power supply, making it suitable for global installations without needing external power converters .
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Environmental Durability: Rated IP20 and operable in temperatures ranging from 0°C to 55°C, with storage down to -40°C .
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Logic Controller (PLC) |
| Discrete I/O Number | 40 |
| Discrete Inputs | 24 (including 2 Fast Inputs at 10 kHz) |
| Discrete Outputs | 16 – Relay |
| Relay Output Rating | 2 A per point (250 Vac / 30 Vdc max) |
| Power Supply | 100…240 Vac |
| Communication Ports | 1x Ethernet, 1x RS485 (Modbus), 1x USB |
| Programming Software | EcoStruxure Machine Expert Basic (formerly SoMachine Basic) |
| Mounting | DIN Rail |
| Protection Rating | IP20 |
The TM218LDA40DRN features 24 digital inputs compliant with IEC 61131-2 Type 1. Specifically, the two high-speed inputs offer:
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Maximum Frequency: 10 kHz .
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Rated Voltage: 24 Vdc (Range: 0…28.8 Vdc) .
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Input Type: Sink/Source .
Relay Outputs
The 16 relay outputs are designed for flexible AC/DC switching with robust isolation protection .
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Rated Voltage: 24 Vdc / 220 Vac.
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Isolation: 1780 Vac / 2500 Vdc between channels and internal logic.
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Cable Length: Non-shielded up to 150 m (492 ft) .
Communication & Connectivity
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Ethernet: For programming, HMI connectivity, and network data exchange.
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RS485: Supports Modbus protocol for driving VFDs, sensors, and meters.
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USB Port: Allows for convenient local programming and quick diagnostics .
Applications
The versatility of the TM218LDA40DRN makes it suitable for a wide range of industrial applications, including:
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Machine Control: Packaging machines, textile machinery, and handling systems.
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Industrial Automation: Conveyor systems, assembly lines, and process control.
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OEM Applications: Custom-built machinery requiring reliable and compact logic control
