Product details
TWDLMDA20DRT – Extendable PLC Base
TWDLMDA20DRT is a modular Twido base controller from Schneider Electric. It has 12 digital inputs (24V DC) and 8 outputs (6 relays + 2 transistors). This compact unit supports up to 7 expansion modules. It is ideal for small to medium automation tasks.
Key Features
- 20 discrete I/O – 12 inputs, 8 outputs
- Mixed outputs: 6 relays (2A) + 2 solid-state (0.3A)
- Expandable: up to 7 I/O modules
- Fast response: transistor outputs switch in 5 µs
- Built-in analog input: 0…10V, 9-bit resolution
- Two counting channels: 16-bit (5 kHz) and 32-bit (20 kHz)
Technical Specifications
- Brand: Schneider Electric
- Model: TWDLMDA20DRT
- Series: Twido
- Type: Modular base controller / PLC
- Supply voltage: 24 V DC (20.4…26.4 V)
- Power consumption: ≤19 W (base + 4 expansions)
- Inrush current: ≤50 A (supply), ≤1 A (transistor output)
- Discrete inputs: 12, 24 V DC, sink/source
- Input current: 5 mA (I0.0-I0.1, I0.6-I0.7), 7 mA (others)
- Input impedance: 5.7 kΩ (I0.0-I0.1, I0.6-I0.7), 4.7 kΩ (others)
- Filter time: 35…150 µs (configurable)
- Discrete outputs: 6 relays + 2 transistors (source)
- Output voltage: 24 V DC (transistor), up to 240 V AC (relay)
- Current per channel: 0.36 A (transistor), 2 A (relay)
- Response time: 5 µs (transistor), ~10 ms (relay)
- Analog input: 1 channel, 0…10 V, 9-bit
- Counting: 2 channels (16-bit @5 kHz, 32-bit @20 kHz)
- PWM/PLS: 2 channels @7 kHz
- Memory: 3000 instructions (6000 with 64K cartridge)
- Execution time: 1 ms per 1K instructions
- Battery backup: 30 days autonomy, 10-year life
- Communication: RS485 (Modbus, ASCII, 38.4 kbit/s)
- Expansion slots: 2 free slots for memory/RTC cartridges
- I/O connection: Removable screw terminal block
- Dimensions: 48 x 95 x 70 mm (W x H x D)
- Weight: 0.185 kg
- Protection: IP20
Installation & Mounting
- Mounting: 35 mm DIN rail or panel (with fixing kit)
- Wiring: Use removable screw terminals
- Expansion: Snap-on modules to the right side
- Power: Connect 24 V DC to the dedicated terminals
Manager’s Insight
This Twido base is a workhorse for small machines. Its mix of relay and transistor outputs gives you flexibility. The built-in analog input and fast counters reduce the need for extra modules. We recommend it for OEMs and panel builders. The 12-month warranty and fast shipping add peace of mind.
Applications
- Packaging: fillers, sealers, labelers
- Conveyors: belt drives, sorters
- HVAC: fans, pumps, dampers
- Water treatment: valve controls, level monitoring
- Simple robotics: pick-and-place, grippers
Comparison with Similar Models
- TWDLMDA20DRT – 12 inputs, 8 outputs (relay+transistor)
- TWDLMDA20DT – same but all transistor outputs
- TWDLMDA40DUK – 24 inputs, 16 outputs, larger footprint
- TM241CEC24T – more advanced M241 series
Selection Guide
- Choose TWDLMDA20DRT if: you need relay outputs for AC loads.
- Consider this PLC for: cost-sensitive projects with mixed I/O.
- Avoid if: you need high-speed analog or motion control.
- Best paired with: Twido expansion modules and HMI panels.
- Warranty: 12 months from date of purchase.
Shipping & Delivery
- Dispatch: 12-24 hours after order confirmation.
- Carriers: FedEx, UPS, DHL (tracking provided).
- Packaging: Anti-static bag in a sturdy carton.
Frequently Asked Questions (FAQ)
- Q: Can I use this PLC without expansion modules?
- A: Yes, it works standalone with its 20 built-in I/O points.
- Q: What software do I need to program it?
- A: Use TwidoSuite or SoMachine Basic (free download).
- Q: Can I add analog inputs later?
- A: Yes, use analog expansion modules (up to 7 total).
- Q: Is the battery replaceable?
- A: Yes, it is a standard lithium cell (10-year life).
- Q: Does it support Modbus TCP/IP?
- A: No, but it has RS485 Modbus RTU. Use a gateway for TCP/IP.
Contact Information: For inquiries, email sales@powergearx.com or call +86 18030005825 (WhatsApp).
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