LAUER PCS807 Profibus DP Module 807.101.5BM

Product Overview

The LAUER PCS807 (model 807.101.5BM) is a dedicated Profibus DP communication module designed to add Profibus DP slave capability to LAUER PCS series operator panels and controllers. This compact plug‑in module enables seamless integration of LAUER HMI devices into distributed automation systems based on the Profibus fieldbus standard, allowing operators to exchange process data with a Profibus master (PLC) in real time.

Technical Features

The module is based on the Siemens SPC3 protocol chip and fully supports DP‑V0 and DP‑V1 services. It operates at all standard baud rates up to 12 Mbit/s (auto‑detection). The module provides a galvanically isolated RS‑485 transceiver for robust communication in noisy industrial environments. A 9‑pin D‑sub connector (female) serves as the bus interface, with a built‑in termination switch (ON/OFF) for easy network configuration.

Data Exchange and Configuration

The PCS807 supports a configurable I/O data length – up to 244 bytes input and 244 bytes output. The I/O mapping is defined via the LAUER configuration software, where the user assigns internal variables to Profibus slots. The module stores the configuration in an EEPROM, ensuring that the parameterization is retained even after power cycles. For DP‑V1, acyclic read/write services allow access to diagnostic data and parameters without interrupting cyclic communication.

Diagnostic Features

• LED Indicators: Green (Run), Red (Error), Yellow (Bus Activity)

• Diagnostic Buffer: Stores last 10 bus errors (timeout, checksum, framing)

• Watchdog: Monitors the connection to the master; if communication is lost for >100 ms, the module sets outputs to a predefined safe state

• Slave Address: Set via a rotary switch (0‑99) or software (range 1‑125)

Electrical and Mechanical Data

• Power Supply: 5 V DC from the host panel (via the internal connector), max 200 mA

• Galvanic Isolation: 1.5 kV between bus and host

• Dimensions: 70 mm x 50 mm x 25 mm (without connector)

• Weight: 80 g

• Protection Rating: IP20 (when inserted into the host panel)

• Operating Temperature: 0 °C to 55 °C

Installation Procedure

Before installation, ensure that the host panel is powered off. Locate the expansion slot on the rear of the LAUER panel (usually marked “Fieldbus”). Remove the protective cover and insert the PCS807 module carefully, aligning the pin header. Secure the module with the two retaining screws. Connect the Profibus cable to the 9‑pin D‑sub connector – use a standard Profibus cable with purple insulation and a metal connector shell. Set the termination switch to “ON” if the module is at the end of the bus segment; otherwise, set it to “OFF”. Set the slave address using the rotary switch. After installation, power on the panel and verify that the green LED illuminates. If the red LED flashes, check the bus wiring and the master configuration.

Integration with Master PLC

To integrate the PCS807, import the provided GSD file (LAUER_807.GSD) into the master PLC’s configuration tool (e.g., Siemens TIA Portal, Step 7). The GSD file defines the module as a standard DP slave with configurable I/O modules. Select the appropriate I/O length (e.g., 8 bytes input, 8 bytes output) to match the panel’s variable mapping. Assign the same slave address as set on the rotary switch. Download the configuration to the master and switch to RUN. The module will establish communication and exchange data with the panel.

Maintenance and Troubleshooting

The PCS807 is maintenance‑free. However, periodic inspection of the Profibus connector and cable is recommended. Common faults: “No Bus Connection” – check cable continuity and termination; “Configuration Error” – ensure the GSD file matches the selected I/O length; “Address Conflict” – verify that no other slave uses the same address. The module’s diagnostic buffer can be read via the panel’s diagnostic menu (under “Fieldbus Status”). If the module fails, replace it with an identical unit – no additional configuration is required if the address and I/O settings are the same.

Compatibility

The PCS807 is compatible with LAUER PCS panels of the 800 and 900 series, as well as LCA controllers with an expansion slot. It is also compatible with any Profibus DP master (Class 1 or Class 2) that supports standard DP‑V0/DP‑V1. The part number 807.101.5BM is the standard version; variants with higher isolation or extended temperature range are available on special order.