The TWDLCDE40DRF from Schneider Electric's Twido series represents a significant step up in I/O capacity and connectivity. This compact base controller operates on a 24 V DC supply and offers 24 discrete inputs alongside 16 outputs—14 relays and 2 transistors. Its standout feature is the integrated Ethernet port, which supports Transparent Ready class A10 for seamless factory network integration. Furthermore, the controller includes both Modbus serial and TCP/IP communication, making it exceptionally versatile. This model also accommodates up to 7 expansion modules, providing a clear upgrade path for growing system requirements.
The TWDLCDE40DRF provides 24 discrete DC inputs with a voltage range of 20.4 to 26.4 V. These inputs are sink or source configurable for flexible wiring. Notably, inputs I0.0, I0.1, I0.6, and I0.7 draw 11 mA with an impedance of 2100 Ohms, while the remaining 20 inputs operate at 7 mA with 3400 Ohm impedance. For outputs, the controller delivers 14 relay outputs rated at 2 A for both 240 V AC and 30 V DC loads. In addition, it includes 2 transistor outputs suitable for high-speed applications requiring PWM or PLS functions.
This base controller requires a rated supply voltage of 24 V DC, with acceptable limits from 20.4 to 28.8 V. Its power consumption is higher than smaller models, totaling 17.2 W. Specifically, the unit draws 128 mA at 24 V DC when the inputs are ON and 240 mA at 5 V DC under the same condition. For protection, an internal fuse safeguards against overcurrent faults on the power supply.
The TWDLCDE40DRF distinguishes itself with dual communication ports. First, it includes a non-isolated serial link via mini DIN for Modbus RTU/ASCII on RS485, supporting up to 38.4 kbit/s. More importantly, it features an integrated Ethernet TCP/IP port with an RJ45 connector. This port supports 10/100 Mbit/s transmission and includes BOOTP client services. Additionally, the Transparent Ready designation ensures seamless connectivity with other Schneider Electric equipment and enterprise-level systems.
For program storage, the TWDLCDE40DRF offers 3000 instructions of internal RAM memory. It maintains 128 timers and 128 counters, alongside 256 internal bits and 3000 internal words. A notable upgrade is the inclusion of floating point and trigonometric calculation support, which is absent in lower-end models. The real-time clock comes standard with an accuracy of ≤ 30 seconds per month and maintains data for 30 days on a lithium battery. Furthermore, it includes event processing and PID functions for sophisticated control loops.
The TWDLCDE40DRF maintains a compact footprint, measuring 90 mm wide, 95 mm high, and 70 mm deep. It weighs 0.525 kg, slightly heavier than smaller controllers due to its additional I/O and Ethernet hardware. This compact size ensures efficient use of panel space despite the higher I/O count.
Designed for demanding environments, this controller operates from 0 to 55 °C and stores between -25 and 70 °C. It performs reliably in 30% to 95% non-condensing humidity. The unit carries an IP20 protection rating, making it suitable for installation within control cabinets. Moreover, it holds UL and CSA certifications, meeting rigorous safety standards for industrial use.
The TWDLCDE40DRF withstands vibrations of 0.075 mm from 10 to 57 Hz and 1 gn from 57 to 150 Hz on a DIN rail. For shock, it tolerates 15 gn for 11 ms duration. These robust characteristics guarantee stable operation even in environments with significant mechanical stress.
Mounting the TWDLCDE40DRF follows a straightforward process on a 35 mm symmetrical DIN rail. First, position the unit at the desired location. Next, hook the top edge onto the rail and press the bottom until the clip engages securely. Remember to leave adequate clearance for ventilation and to accommodate the Ethernet cable and I/O wiring.
Connect the 24 V DC power supply to the non-removable screw terminal block. Then, wire your 24 input devices and 16 output loads according to the sink/source configuration. The terminal block clearly labels each connection point. For Ethernet communication, plug a standard twisted-pair cable into the RJ45 port. The serial link connects via the mini DIN port for legacy Modbus networks.
The TWDLCDE40DRF supports up to 7 I/O expansion modules, significantly increasing total system capacity. Consequently, you can achieve a maximum I/O count of 264 points with HE-10 connectors. Simply attach each module to the side of the base unit, and the system automatically recognizes them during power-up.
Your shipment includes the following items:
TWDLCDE40DRF base controller unit
Non-removable screw terminal block (pre-attached)
Quick start guide and installation manual
DIN rail mounting clips
Ethernet port dust cover
Each unit is packaged in a single carton measuring 10.5 cm x 12 cm x 18 cm. The total package weight is approximately 0.712 kg. For reliable and timely delivery, we exclusively use FedEx, UPS, and DHL courier services.
1. What is the difference between the TWDLCDE40DRF and the TWDLCDA24DRF?
The TWDLCDE40DRF offers 24 inputs and 16 outputs (14 relay + 2 transistor) versus 14 inputs and 10 relay outputs on the TWDLCDA24DRF. Additionally, the DE model includes built-in Ethernet and supports 7 expansion modules compared to 4 on the DA model.
2. Does the TWDLCDE40DRF support floating point math?
Yes, unlike many smaller Twido controllers, the TWDLCDE40DRF includes floating point and trigonometric calculation capabilities in its internal RAM memory.
3. Can I use this controller as a Modbus TCP/IP server?
Absolutely. The integrated Ethernet port supports Modbus messaging over TCP/IP, allowing the TWDLCDE40DRF to function as a Modbus server on your Ethernet network.
4. How do I connect additional I/O modules to this base unit?
Simply attach up to 7 expansion modules directly to the right side of the TWDLCDE40DRF. The system automatically detects each module when powered on, with no complex configuration required.
5. Is the real-time clock battery replaceable on this model?
The real-time clock is powered by an internal lithium battery that maintains data for up to 30 days. For long-term reliability, we recommend replacing the battery as part of regular maintenance every few years.
| Brand Name | |
| Model No. | TWDLCDE40DRF |
| Product Type | Compact Base Controller |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
