Alstom SCN804E PLC Module Measure Interface Board

The Alstom SCN804E PLC Module Measure Interface Board is an industrial measurement interface device that bridges sensors and measurement instrumentation to programmable logic controller systems. It has real-time data acquisition and control signal conditioning across distributed automation networks, with dual power supplies and mixed-signal I/O architecture supporting multi-protocol communication in demanding factory environments.

Technical Specifications

• Power Supplies: Dual supplies


• Supply Voltage: 24 VDC


• Input Current Range: 3–26 mA (±4% overrange)


• Output Current Range: 4–23 mA (±6% overrange)


• Over-range Protection: +42.5 VDC continuous


• Operating Temperature: −40°C to +70°C


• Dimensions: 250 mm × 240 mm × 35 mm


• Weight: 2.450 kg


• Enclosure Rating: IP67

Key Features

• 28-position terminal block for field wiring


• 25-pin D-Sub connector interface


• High-speed processing for real-time control loops


• Programmable logic capabilities for custom signal conditioning


• Advanced data analytics and monitoring functions


• Support for Modbus, CANopen, and Profibus protocols


• Extensive input/output capacity for large-scale measurement networks

Typical Applications Measurement signal conditioning in protection and control systems, analog-to-digital interface modules for SCADA integration, distributed sensor aggregation in industrial substations, and multi-protocol gateway functions in legacy PLC environments.

Compatibility & Integration Designed for direct integration with Alstom PLC platforms. Compatible with Alstom GECOSTAT FV223-M2, PSF3B, MVAAM Auxiliary Relay, 51199-005-00, 1G-5556, and R200PL5541/39 modules. Supports SCADA system integration via standard communication protocols.