Lauer P090b/L033/00a Interface Module

The Lauer P090b/L033/00a is a compact interface module that combines power distribution, digital I/O, and analog signal conditioning in a single housing. It is engineered to reduce wiring complexity and improve system performance in distributed automation networks. Its robust design and flexible configuration make it suitable for a wide variety of industrial applications.

Technical Specifications

• Input Voltage: 24 V DC (18–30 V DC), with transient suppression.

• Output Power: 3 x isolated 24 V DC outputs, 0.8 A each, total 2.4 A.

• Digital Inputs: 16 x 24 V DC, opto-isolated, filter time 3 ms.

• Digital Outputs: 8 x 24 V DC, 0.5 A, overload and short-circuit protected.

• Analog Inputs: 4 x configurable 0–10 V or 0–20 mA, 14-bit resolution.

• Communication: 1 x RS232, 1 x RS485 (Modbus RTU).

• Dimensions: 160 x 100 x 65 mm, DIN rail mount.

• Operating Temperature: -20 °C to 60 °C.

• Protection: IP20.

• Weight: 0.55 kg.

Functional Features

The module includes a built-in real-time clock for timestamping events and data logging. It supports automatic baud rate detection and can be configured via a web interface through the optional Ethernet module. Diagnostic LEDs provide status of each input and output, as well as power and communication. The analog inputs can be configured as RTD or thermocouple inputs with linearization.

Installation Guidelines

Install the module on a DIN rail, ensuring proper grounding. Use the terminal blocks for power and I/O connections. Shielded cables are recommended for analog signals; the shield should be connected to the ground bar. The RS485 network requires termination resistors at both ends. Configure the node address and parity via the onboard DIP switches.

Operating Conditions

Designed for industrial environments, the module operates from -20 to 60 °C with humidity up to 95 %. It can withstand vibration of 1 g (10–150 Hz) and shock of 20 g (11 ms). The power supply has an efficiency of 88 % and includes active PFC.

Applications

This module is ideal for process monitoring, building automation, water treatment plants, and conveyor systems. It can be used as a remote I/O station connected via RS485 to a master PLC, or as a standalone controller for small applications using the integrated logic functions.

Compliance and Certifications

CE and UL listed. Complies with EMC directive 2014/30/EU and low voltage directive 2014/35/EU. RoHS compliant.

Ordering Variants

Available variants include extended temperature range, higher power output versions, and models with integrated Ethernet or Profibus interfaces.