Schneider TM258LF42DT Logic Controller 42 I/O 24V

Product Introduction

The Schneider Electric TM258LF42DT is a powerful and compact logic controller. It belongs to the renowned Modicon M258 series of programmable logic controllers. This controller provides 42 discrete I/O points directly on the base unit. It operates on a 24V DC power supply. Moreover, the TM258LF42DT includes an embedded CANopen master communication port. This feature enables seamless connection to drives, sensors, and remote I/O stations. The controller is ideal for packaging, conveying, lifting, and other general machine control applications.

Technical Specifications

Discrete I/O Configuration

The TM258LF42DT features a comprehensive built-in I/O set. Specifically, it offers 12 digital inputs and 12 digital outputs as regular I/O. Additionally, it provides 10 fast inputs and 4 fast outputs for high-speed applications. The controller also includes 4 regular inputs, bringing the total discrete I/O count to 42. This extensive onboard I/O reduces the need for additional modules in smaller applications.

Input and Output Characteristics

The discrete inputs on the TM258LF42DT support sink and source logic configurations. The input voltage is 24V DC. The guaranteed ON-state voltage is >= 15V, and the OFF-state is <= 5V. The input current is 4mA, and the input impedance is 6 kOhm. For the discrete outputs, they use source logic. The output voltage is 24V DC, with limits of 19.2 to 28.8V. The fast outputs provide a current of 4mA. The controller features configurable filtering times of 0, 1.5, 4, and 12 ms, plus anti-bounce filtering from 2 µs to 4 ms.

Communication Ports

This controller offers extensive connectivity options. It includes an isolated CANopen male SUB-D 9 port. The CANopen port operates as a master. The supported baud rates range from 10 kbit/s up to 1000 kbit/s, with corresponding bus lengths from 5000m down to 4m. Additionally, the TM258LF42DT features an isolated serial link RJ45 for Ethernet Modbus TCP/IP slave. Another isolated serial link RJ45 supports Modbus master/slave RTU/ASCII or character mode ASCII (RS232/RS485). For programming and data transfer, it includes an isolated mini B USB port and an isolated USB type A port. Both USB ports operate at 480 Mbit/s.

Power Supply Requirements

The TM258LF42DT requires a 24V DC main supply. The supply voltage limits are 20.4 to 28.8V. The rated current for the main supply is 0.26A. For the I/O power segment, it requires up to 10A. The embedded expert modules power draws 0.04A. The total power consumption is <= 13.03W. The peak current for the main supply is <= 100 kA for <= 70s, and <= 1.2A for >70s.

Memory and Processing

The controller delivers outstanding processing performance. It executes Boolean instructions in just 22 ns. The memory includes 128 MB of Flash and 64 MB of internal RAM. This capacity supports complex control programs and data handling. The TM258LF42DT also includes a real-time clock with user calibration capability. The drift is <= 6 seconds per month with calibration, and < 30 seconds per month at 25°C without calibration. Data backup for retain and persistent variables uses a CR2477M Renata battery, providing 1.5 years of autonomy.

Mechanical and Environmental Specifications

Dimensions and Mounting

The TM258LF42DT has a width of 175mm, a height of 99mm, and a depth of 85mm. It weighs 0.55kg. The controller mounts on a standard symmetrical DIN rail. This compact footprint saves valuable cabinet space. Furthermore, its robust design ensures reliable operation in industrial environments.

Environmental Operating Conditions

This controller operates reliably across a wide temperature range. For horizontal installation without derating, the ambient temperature is 0°C to 55°C. With derating, it can operate up to 60°C. For vertical installation, the range is 0°C to 50°C. The storage temperature is -25°C to 70°C. The TM258LF42DT withstands relative humidity from 5% to 95% without condensation. Its IP20 protection rating ensures safe installation in protected cabinets.

Vibration and Shock Resistance

The controller is built for harsh industrial environments. It withstands vibration of 3.5mm at 5 to 8.4Hz on a DIN rail. It also endures 1gn vibration at 8.4 to 150Hz. Shock resistance is rated at 15gn for 11ms. These specifications ensure reliable operation in applications with significant machinery vibration.

Electromagnetic Compatibility

The TM258LF42DT meets rigorous EMC standards. It resists electrostatic discharge of 8kV in air and 4kV on contact. Electromagnetic field immunity is 10 V/m from 80 to 2000 MHz and 1 V/m from 2 to 2.7 GHz. It withstands fast transients of 1kV for I/O and shielded cables, and 2kV for power lines. Surge withstand is 0.5kV differential mode and 1kV common mode. The controller complies with CISPR 11 for radiated and conducted emissions.

Installation and Configuration Guide

Mechanical Installation

First, mount the TM258LF42DT onto a standard symmetrical DIN rail. Ensure the rail is securely attached to your cabinet. Next, clip the controller into place until the latch engages. Verify that the controller sits firmly on the rail. Finally, ensure adequate spacing for ventilation and wiring access.

Electrical Wiring

Connect the 24V DC power supply to the designated terminals on the controller. Ensure the power supply meets the required specifications. Wire the I/O devices to the appropriate input and output terminals. Use proper wire gauges to handle the current requirements. Additionally, install external protection devices as needed. This systematic approach prevents operational issues.

Communication Setup

Configure the CANopen master port for your network. Set the appropriate baud rate based on your bus length requirements. Configure the Ethernet port for Modbus TCP/IP communication. Set up the serial link for Modbus RTU or ASCII communication as needed. The TM258LF42DT supports multiple protocols simultaneously. Therefore, it offers exceptional flexibility for various network architectures.

Programming and Commissioning

Use Schneider Electric's programming software to develop your control program. Download the program via the USB port or Ethernet connection. Test all inputs and outputs for proper operation. Verify communication with all connected devices. Finally, monitor system performance and make adjustments as required.

Packaging and Logistics Information

Packaging Details

• Unit Type of Package: PCE

• Package 1 Height: 9.900 cm

• Package 1 Width: 19.800 cm

• Package 1 Length: 24.300 cm

• Package 1 Weight: 0.550 kg

Shipping and Logistics

We ship this item using premium courier services. Delivery will be handled by Fedex, UPS, or DHL. The controller is packaged securely to prevent damage during transit. International shipping is available. Additionally, tracking information will be provided immediately after dispatch.

Frequently Asked Questions (FAQ)

1. What is the total I/O count on the TM258LF42DT?

The TM258LF42DT provides 42 discrete I/O points. This includes 22 inputs (12 regular + 10 fast) and 20 outputs (12 regular + 4 fast + 4 regular inputs).

2. What communication protocols does the TM258LF42DT support?

The TM258LF42DT supports CANopen master, Modbus TCP/IP slave, and Modbus RTU/ASCII master/slave. It also provides USB connectivity for programming and data transfer.

3. What is the maximum CANopen network length?

The maximum CANopen network length depends on the baud rate. At 10 kbit/s, it supports up to 5000m. At 1000 kbit/s, it supports up to 4m.

4. Does the TM258LF42DT have a real-time clock?

Yes, the TM258LF42DT includes a real-time clock. With user calibration, the drift is <= 6 seconds per month.

5. What type of battery does the TM258LF42DT use for data backup?

The TM258LF42DT uses a CR2477M Renata battery. This battery provides up to 1.5 years of autonomy for retain and persistent variables.