Schleicher P03GS13A CPU Module

The Schleicher P03GS13A (also designated as P03 GS13-1, part number 35411801) is a compact and powerful CPU module designed for the Schleicher family of industrial programmable controllers. This module integrates a high‑performance processor with a comprehensive set of onboard digital I/O and communication interfaces, making it an ideal core for small to medium‑sized automation projects. Its robust construction and real‑time capabilities make it suitable for applications in machine control, production monitoring, and process automation.

The CPU is programmed using Schleicher’s engineering software, supporting the IEC 61131‑3 standard programming languages, including ladder diagram (LD), function block diagram (FBD), and structured text (ST). The module includes a built‑in RS‑232 interface for programming and HMI connection, and a CAN‑bus interface for networking with distributed I/O or other controllers. Its memory retains programs via a non‑volatile FRAM, ensuring data integrity without battery backup.

Technical Specifications

• Processor: 16/32‑bit microcontroller, 50 MHz

• Program memory: 128 KB (FRAM, non‑volatile)

• Data memory: 64 KB (RAM, battery‑buffered with supercapacitor)

• Digital inputs: 12 (24 V DC, sink/source, response time < 1 ms)

• Digital outputs: 8 (transistor, 24 V DC, 0.5 A per point, short‑circuit protected)

• Communication ports: 1 x RS‑232 (programming/HMI), 1 x CAN‑bus (CANopen compatible)

• Timers/Counter: 128 each (16‑bit)

• Interrupt inputs: 2 (fast response, < 50 µs)

• Supply voltage: 24 V DC (18‑30 V DC)

• Power consumption: 4 W (typical, without external loads)

• Dimensions: 110 x 75 x 60 mm

• Operating temperature: -20°C to +55°C

• Protection rating: IP20

• Certifications: CE, RoHS

Functional Features

• Real‑time clock (RTC): Enables event time‑stamping and scheduled start/stop routines.

• Watchdog timer: Monitors program execution, automatically resetting the CPU in case of a software hang.

• Integrated data logging: User‑definable data arrays can be stored in the internal memory for trending and diagnostics.

• Firmware upgradeable: New firmware versions can be loaded via the RS‑232 port without opening the unit.

Typical Applications

• Small packaging machines: Controlling sealing, cutting, and labeling sequences.

• Test rigs and quality stations: Acquiring sensor data and actuating measurement devices.

• CNC auxiliary control: Managing tool changers and coolant systems.

• Agricultural equipment: Controlling seeders and sprayer boom sections.

Installation and Wiring

The P03GS13A is designed for DIN‑rail mounting inside a control cabinet. The removable spring‑clamp terminal blocks allow pre‑wiring of the cabinet before module installation. Each input and output terminal is clearly labeled on the housing. For the inputs, connect the 24 V DC common to the “COM” terminal; for outputs, ensure the external load supply (24 V DC) is fused appropriately. The RS‑232 port uses a standard 9‑pin D‑sub connector; a null‑modem cable is required for connecting to a PC. The CAN‑bus network requires a shielded twisted‑pair cable with 120 Ω termination resistors at both ends. Grounding is achieved via the DIN‑rail clip and the dedicated earth terminal.

Software and Configuration

Programming is performed using Schleicher’s PROVIS or equivalent programming tool. The software provides a comprehensive library of function blocks, online debugging, and variable monitoring. I/O addresses are mapped automatically, and the system supports up to 64 additional digital/analog modules via the CAN‑bus expansion. Configuration includes setting the node ID for CAN‑bus communication and selecting the default baud rate.

Compliance and Environment

This CPU module is CE marked and meets the EMC immunity and emission requirements for industrial environments (EN 61131‑2). It is RoHS compliant and rated for pollution degree 2. The wide operating temperature range allows deployment in unconditioned plant areas.

Conclusion

The Schleicher P03GS13A CPU module offers a compact, flexible, and dependable controller core for a diverse set of automation tasks. Its balance of onboard I/O, communication options, and robust software support provides system integrators with a practical solution for efficient machine and process control.