Lauer PCS095.P PCS Plus Profibus DP Operator Interface

General Description

The Lauer PCS095.P, part of the PCS Plus series, is a compact operator interface panel with integrated Profibus DP slave functionality. Designed for distributed automation architectures, this terminal allows operators to monitor and control processes directly at the machine level, while seamlessly communicating with a Profibus DP master (e.g., PLC or DCS). It combines a graphical display, membrane keypad, and robust construction for use in industrial workshops and process areas.

Display and Keypad

The PCS095.P features a 5.7‑inch STN graphic LCD with a resolution of 320 x 240 pixels and a white LED backlight. The display supports both text and bitmap graphics, allowing for user‑defined screens including bar charts, trend graphs, and system mimics. The keypad consists of 24 membrane keys, including 10 programmable function keys (F1‑F10), a numeric block, and navigation arrows. Each key provides tactile feedback and is backlit (yellow/green) for visibility in low‑light conditions. The front overlay is rated IP65 for protection against water and dust.

Profibus DP Interface

The integrated Profibus DP slave interface complies with EN 50170 and supports DP‑V0 and DP‑V1 services. The baud rate is auto‑detected up to 12 Mbit/s. The terminal acts as a standard slave device with a configurable I/O data length (up to 244 bytes input and 244 bytes output). A rotary switch on the rear sets the slave address (1‑125). The unit supports acyclic data exchange (DP‑V1) for parameterization and diagnostics, as well as alarm handling and time synchronization via the bus.

Memory and Application Features

• User Memory: 1 MB flash for screen and application data (up to 500 screens)

• Variables: Up to 1000 internal registers (bit, word, double word, float)

• Alarm Management: 200 alarm messages with history log (battery‑backed RAM)

• Data Logging: 16 trend channels with configurable sampling intervals

• Multi‑language Support: Up to 5 languages (switchable via key or external variable)

Electrical and Environmental Specifications

• Power Supply: 24 V DC (±15 %), max 400 mA

• Operating Temperature: 0 °C to 50 °C

• Storage Temperature: –20 °C to 70 °C

• Protection Class: Front IP65, rear IP20

• Mounting: Panel‑mount (cut‑out 166 mm x 126 mm) with screws

• Dimensions: 190 mm x 150 mm x 55 mm (W x H x D)

• Weight: 0.8 kg

Configuration Software

The PCS095.P is programmed using the LAUER PCS‑Config software (version 3.0 or higher). This Windows‑based tool provides a library of pre‑defined graphical objects (meters, sliders, gauges, buttons) and a drag‑and‑drop interface. The software includes a Profibus DP configuration wizard that automatically generates the GSD file for the master PLC. The project is downloaded via a serial cable (RS‑232) or through the Profibus DP network itself (using acyclic services). The software also offers online monitoring and debugging, allowing the user to view variable values and screen transitions in real time.

Installation and Commissioning

Install the panel in a control cabinet with sufficient clearance for ventilation. Cut the panel opening, insert the unit, and secure it with the provided mounting screws. Connect the Profibus DP cable to the 9‑pin D‑sub connector (shielded, with termination on/off switch). Connect the 24 V power supply to the two‑pin terminal block. After power‑up, the display shows the startup logo and then enters the main screen. Configure the slave address using the rotary switch. On the PLC side, import the GSD file and configure the I/O mapping. The terminal will start exchanging data as soon as the PLC enters RUN mode. Use the diagnostic LED (red/green) to verify bus communication – steady green indicates normal operation, flashing red indicates a configuration mismatch.

Maintenance and Troubleshooting

The PCS095.P is virtually maintenance‑free. Clean the front overlay with a mild cleaning solution. The internal battery (CR2032) for the real‑time clock and alarm log has a 5‑year life; replace it when the “Battery Low” message appears. Common faults: “Profibus No Sync” – check the bus cable and termination; “PLC Not Responding” – verify the I/O mapping and slave address; “Screen Corruption” – reload the project via the configuration software. If the unit becomes unresponsive, perform a hard reset by pressing the reset button (recessed) on the rear panel. For hardware failures, return the unit to an authorized service center.

Compatibility and Variants

The PCS095.P is compatible with all major Profibus DP masters (Siemens, ABB, Rockwell, Schneider). It is also available as PCS095.C for CANopen and PCS095.E for Ethernet/IP. The “.P” designation specifically indicates Profibus DP. When ordering, specify the required firmware language and any custom splash screen. The unit is supplied with a printed quick‑start guide and a CD containing the configuration software and GSD files.