TWDLMDA40DTK Twido Base Controller – 24/16 I/O, Analog Input, 24V DC

TWDLMDA40DTK – Twido Modular Base Controller, 24V DC, 40 I/O

Series: Twido | Brand: Schneider Electric | Type: Modular Base Controller

Compact all-in-one controller with 24 discrete inputs and 16 transistor outputs. Integrates 1 analog input (0-10V, 9-bit) and supports up to 7 expansion modules. Built for small to medium automation tasks with fast instruction execution (1 ms per 1K instructions).

Oiltech Controls’s Insight – Why This Controller?

• Balanced I/O mix: 24 inputs + 16 source outputs – ideal for machine control
• Analog input onboard – saves space and separate analog module cost
• High-speed counting (2 x 20 kHz) and PWM/PLS outputs (2 x 7 kHz)
• Memory expandable via cartridge (up to 6000 instructions)
• Real-time clock and PID function built-in

Technical Overview (Key Parameters)

• Supply: 24 V DC (20.4…26.4 V), max power 19 W (base + 4 expansions)
• Discrete Inputs: 24 – sink/source, 24 V DC, currents 5/7 mA (depending on channel)
• Discrete Outputs: 16 transistor source, 0.36 A per channel, 1 A per common
• Analog Input: 1 channel, 0…10 V, 9-bit resolution, 100 kΩ impedance
• High-speed: 2 counting inputs (5000 Hz / 20000 Hz) ; 2 PWM/PLS outputs (7 kHz)
• Memory: 3000 instructions (expandable to 6000), 1 ms/K instruction
• Isolation: 1500 Vrms between I/O and logic ; 500 V between supply and earth
• Protection: Internal fuse, overvoltage clamp (39 V), reverse polarity not specified

Compatibility & Expansion

• Accepts up to 7 Twido I/O expansion modules
• 2 free slots: one for memory cartridge (32K/64K) and one for RTC
• Max I/O count: 264 (with HE-10), 208 (spring terminal), 152 (screw terminal)
• Not compatible with Modicon Quantum or M340 systems – dedicated Twido family

Installation & Environmental Ratings

• Mounting: DIN rail (35 mm) or panel with fixing kit
• Operating temp: 0…55 °C ; storage: -25…70 °C ; humidity: 30…95% (non-condensing)
• Altitude: up to 2000 m (operation) / 3000 m (storage)
• Vibration: 4 gn (25-100 Hz) on panel ; 1 gn (57-150 Hz) on DIN rail
• Shock: 15 gn for 11 ms

LED Diagnostics & Status

• Per-channel I/O status LEDs (HE-10 connector)
• Green RUN, Green PWR, STAT, ERR indicators
• Quick visual check for power, run, and fault conditions

Programming & Communication

• Non-isolated RS485 serial link (Mini DIN) – Modbus RTU/ASCII master/slave
• Supports character mode, half-duplex, up to 38.4 kbit/s
• Internal RAM with battery backup (Lithium, 30 days autonomy, 10 yr battery life)
• Floating point, trigonometric, double word, timer/counter functions available

5 Professional FAQs (with Experience-Based Answers)

Q1: Can I use this controller with 2-wire proximity sensors (PNP/NPN)?

Yes – inputs are sink/source configurable per group. For PNP (source) sensors, connect common to 0 V. For NPN (sink), connect common to +24 V. Always check sensor output type before wiring.

Q2: What is the real scan time when using PID and high-speed counting simultaneously?

Typical scan time increases by 0.5…1.5 ms when PID is active. The 1 ms/K instruction time is for logic only. For time-critical loops, keep PID updates to every 5-10 scans.

Q3: The analog input is only 9-bit. Is it suitable for temperature or pressure measurement?

9-bit gives 512 steps over 0-10V (approx. 19.5 mV/step). For rough monitoring or non-critical applications it works. For precise control, we recommend an external analog module with 12-bit or higher.

Q4: How do I expand memory beyond 3000 instructions?

Insert a 64K memory cartridge in the dedicated slot. This expands program capacity to 6000 instructions and retains data during power loss. Battery backup is still required for RAM retention.

Q5: Which expansion modules are best for adding more analog I/O?

Use TM2AMI2HT (2-channel analog input) or TM2AMO1HT (1-channel analog output). For thermocouples, choose TM2AMM6HT. Always match the module type to your signal requirements.

Why Buy From Oiltech Controls?

• 15+ years focused on industrial automation spares
• Global shipping – FedEx, UPS, DHL with tracking
• Each unit undergoes functional and isolation testing before dispatch
• 12-month warranty against manufacturing defects
• Expert support for obsolete and legacy control systems
• Same-day dispatch for orders placed before 2 PM (UTC+8)

Shipping & Delivery

• Express couriers: FedEx, UPS, DHL (fully insured)
• Dispatch within 24-28 hours after order confirmation
• Delivery typically 2–5 business days worldwide

Package Contents

• TWDLMDA40DTK base controller (1 unit)
• No cables, connectors, or memory cartridge included
• Documentation: quick start guide (digital download)

Contact Information

For technical or sales inquiries: info@oiltechcontrols.com  |  +86 158 8020 0923

Copyright © 2026 Oiltech Controls Limited. https://www.oiltechcontrols.com/ All rights reserved.