Schneider TWDLCAA16DRF Twido 16 I/O PLC Controller

TWDLCAA16DRF Compact Base Controller – Product Introduction

The Schneider Electric TWDLCAA16DRF offers a balanced I/O configuration. It provides 9 inputs and 7 relay outputs. This setup delivers greater control than smaller models. The Twido series targets applications with more monitoring points. It also handles additional switching needs without extra panel space.

Furthermore, this controller supports memory cartridges. You can also add real-time clock cartridges. The expansion slot enables this customization. The built-in power supply outputs 0.25 A at 24V DC. This feature powers external sensors directly. Consequently, it reduces additional component costs.

Key Technical Specifications

Power Supply and Input/Output
The TWDLCAA16DRF accepts 100 to 240V AC input. Its operational limits are 85V to 264V. The frequency range is 47 to 63 Hz. Power consumption is 22 VA at 100V. It consumes 31 VA at 264V. An internal fuse protects against overloads.

The unit provides 9 discrete inputs at 24V DC. These inputs support sink or source logic. This flexibility matches various field devices. Additionally, it delivers 7 relay outputs. Each relay switches 2A at 240V AC. It also handles 2A at 30V DC. Mechanical durability reaches 20 million cycles. Electrical durability is 100,000 cycles.

Communication and Memory
For connectivity, the controller includes a mini DIN port. This port supports Modbus RTU/ASCII communication. It operates in master or slave mode. The RS485 half-duplex link runs at 38.4 kbit/s. Program memory stores up to 2000 instructions. Internal RAM includes 128 counters and 128 bits. It also contains 3000 internal words. Additionally, it has 64 timers and double word registers. A lithium battery backs up the RAM. Backup lasts up to 30 days. Battery life extends to 10 years. Recharge time is approximately 10 hours.

Counting and Adjustments
The TWDLCAA16DRF includes versatile counting features. One 32-bit counter operates at 20,000 Hz. Three 16-bit counters run at 5,000 Hz. It also has one analog adjustment point. This point adjusts from 0 to 1023. You can fine-tune process parameters directly.

Mechanical and Environmental Ratings

Dimensions and Mounting
This controller measures 90 mm wide and 80 mm high. Its depth is 70 mm. Net weight is only 0.25 kg. Mount it on a standard 35 mm DIN rail. You can also use a flat panel with a fixing kit. Non-removable screw terminal blocks ensure secure connections. These connections withstand industrial environments.

Environmental Conditions
The TWDLCAA16DRF operates from 0°C to 55°C. Storage temperatures range from -25°C to 70°C. Relative humidity tolerance is 30% to 95%. This tolerance applies without condensation. The IP20 rating protects against solids. Vibration tolerance is 0.075 mm at 10–57 Hz. It withstands 1 gn at 57–150 Hz on DIN rail. Shock resistance reaches 15 gn for 11 ms. These ratings ensure reliable performance.

Installation Guidelines

Begin by mounting the TWDLCAA16DRF securely. Use a 35 mm symmetrical DIN rail. Alternatively, mount it on a flat panel. Use the optional fixing kit for panels. Next, connect the AC power supply. Wire to the L and N terminals. Ensure the ground terminal is properly earthed. Proper earthing avoids electrical noise issues.

Then, wire sensors to the input terminals. Inputs are labeled I0.0 through I0.8. Wire actuators to the output relays. Outputs are labeled O0.0 through O0.6. Follow the terminal layout diagrams carefully. For communication, connect the mini DIN port. Use an RS485 network for Modbus. Configure the Modbus parameters via software. Finally, insert a memory cartridge if needed. You can also add an RTC cartridge. This adds program backup or time-stamping.

Packaging List

• 1 x Schneider TWDLCAA16DRF Compact Base Controller

• 1 x Product documentation package

Shipping Method: FedEx, UPS, or DHL

Frequently Asked Questions (FAQ)

1. Can I expand the TWDLCAA16DRF with extra I/O?
Yes, the TWDLCAA16DRF is fully extendable. Add compatible Twido expansion modules easily.

2. How does this differ from the TWDLCAA10DRF?
The TWDLCAA16DRF has 16 total I/O points. The smaller model has only 10 I/O points. Memory is also larger at 2000 instructions.

3. Does the TWDLCAA16DRF have a real-time clock?
No, it does not have a built-in clock. You can add one via an RTC cartridge.

4. How do I set up Modbus communication?
Use the mini DIN serial port for connection. Configure the controller as a Modbus master or slave. Select RTU or ASCII mode with proper baud rate.

5. How long does the battery back up data?
The lithium battery backs up data for 30 days. Total battery life is 10 years. The battery recharges when the unit powers on.