Schneider TWDLCDA16DRF Twido PLC Controller 24V DC Relay Output

TWDLCDA16DRF – Compact Base Controller

The TWDLCDA16DRF is a compact base controller from the Twido series by Schneider Electric. It operates on a 24 V DC supply and integrates 9 discrete inputs (24 V DC) plus 7 relay outputs. This unit suits small to mid-size control applications where space and cost efficiency are critical. It supports Modbus communication via non-isolated serial link (RS485) and accepts memory or real-time clock cartridges.

Technical Specifications – Core Parameters

• Discrete I/O: 16 total (9 inputs / 7 relay outputs)
• Input Logic: Sink or source configurable
• Input Voltage Range: 20.4…28.8 V DC
• Input Current: 11 mA (I0.0 to I0.1) / 7 mA (I0.2 to I0.8)
• Input Impedance: 2100 Ω (I0.2–I0.8) / 3400 Ω (I0.0–I0.1)
• Filter Time: 35–150 µs + programmable filter
• Relay Output Load: 2 A @ 240 V AC / 30 V DC (resistive/inductive)
• Minimum Load: 0.1 mA
• Contact Resistance: ≤ 30 mΩ
• Mechanical Durability: 20,000,000 cycles
• Electrical Durability: 100,000 cycles

Power & Memory Specifications

• Supply Voltage: 24 V DC (20.4…28.8 V range)
• Inrush Current: 35 A
• Power Consumption: 4.6 W
• Protection: Internal fuse on power supply
• Program Memory: 2000 instructions
• Execution Speed: 1 ms per 1000 instructions
• Memory Backup: Internal RAM with lithium battery (30 days, 10 hours)
• Counters: 128 internal counters, 64 timers
• Internal Bits/Words: 128 bits / 3000 words

Communication & Connectivity

• Integrated Port: Mini DIN (RS485) for Modbus RTU/ASCII
• Baud Rate: Up to 38.4 kbps (half duplex)
• Serial Adapter: Supports RS232C/RS485 conversion
• Counting Inputs: 1 channel @ 20 kHz (32-bit) + 3 channels @ 5 kHz (16-bit)
• Analogue Adjustment: 1 point (0…1023 resolution)

Environmental & Physical Data

• Operating Temperature: 0…55 °C (32…131 °F)
• Storage Temperature: -25…70 °C (-13…158 °F)
• Relative Humidity: 30…95 % (non-condensing)
• IP Rating: IP20
• Vibration Resistance: 0.075 mm @ 10…57 Hz / 1 gn @ 57…150 Hz
• Shock Resistance: 15 gn for 11 ms
• Dimensions (W x H x D): 90 x 95 x 70 mm
• Net Weight: 0.25 kg

Installation & Mounting Guidelines

• Mount on 35 mm symmetrical DIN rail or plate/panel with fixing kit.
• Use non-removable screw terminal block for I/O connections.
• Ensure adequate clearance for ventilation and cable routing.
• Supply voltage must be within 20.4…28.8 V DC; observe polarity.
• For vibration-prone environments, use the panel mounting option.

Compatibility & System Integration

• Designed for Twido compact PLC systems (all CPU variants).
• Works with Modicon Quantum (Modicon Quantum series) via bus couplers.
• Fully compatible with EcoStruxure Machine Expert and TwidoSuite.
• Supports memory cartridge for program backup or real-time clock.

Diagnostics & Status Indication

• LEDs: PWR (green), RUN (green), ERR (red), STAT (user), I/O status per channel.
• Insulation: 1500 Vrms between I/O and logic (1 min).
• Immunity to microbreaks: 10 ms.
• Built-in diagnostics for overload and short-circuit detection.

Typical Application Scenarios

• Small conveyor control with relay outputs for motor contactors.
• Packaging machinery with discrete sensors and actuator controls.
• HVAC systems requiring temperature and pressure monitoring.
• Retrofit of older relay-based panels with PLC intelligence.

Oiltech Controls’s Insight – Selection Guide

• This controller fits applications needing 9 inputs and 7 relay outputs – ideal for discrete on/off control.
• Choose this model when you need relay switching for AC/DC loads up to 2 A per channel.
• For high-speed counting, use the built-in 20 kHz input for encoders or flow meters.
• Memory backup ensures program retention during short power interruptions.
• Consider the real-time clock cartridge if time-stamped events are required.

Frequently Asked Questions (FAQ)

• What is the maximum load current per relay output? 2 A at 240 V AC or 30 V DC (resistive/inductive). Derate for frequent switching.
• Can I use this controller with Modbus TCP/IP? No, it supports Modbus RTU/ASCII over RS485 only. For Ethernet, use a gateway.
• How do I set the input filter time? Programmable via TwidoSuite software; default values are 35–150 µs depending on input.
• Is the controller compatible with 3-wire PNP sensors? Yes, inputs are sink/source configurable; use common wiring per sensor type.
• What happens if the battery dies? Program and data may be lost. Replace battery or use memory cartridge for permanent storage.

Shipping, Warranty & Support

• Warranty: 12 months from invoice date.
• Dispatch: 24–28 hours after order confirmation.
• Shipping Carriers: FedEx, UPS, DHL (trackable, door-to-door).
• Package Weight: 371 g (unit), 1.333 kg (bulk pack of 3).
• Country of Origin: Taiwan (TW).

Why Buy From Oiltech Controls?

• 15+ years of focused expertise in industrial automation spare parts.
• Global logistics with trusted carriers (FedEx, UPS, DHL).
• Thoroughly tested surplus and refurbished options available.
• 12-month warranty ensures peace of mind.
• Pre-shipment technical verification for every order.
• Specialized support for obsolete control systems.

Contact Information: Inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp).

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