Aeco 158-02 DSP-02 Digital Signal Processor PCB Card

The Aeco 158-02 DSP-02 is a printed circuit board designed as a dedicated digital signal processor module for industrial automation systems. It is equipped with a high-performance DSP chip capable of executing complex mathematical algorithms at high speed, making it suitable for real-time motion control, vibration analysis, and feedback control loops. The card interfaces with a host PLC or industrial PC via a standard bus interface (ISA or PCI, depending on variant) and includes onboard analog and digital I/O for direct sensor integration.

Technical Specifications

• Processor: Texas Instruments TMS320C32 or equivalent, 60 MHz

• Memory: 512 KB SRAM, 1 MB Flash (firmware storage)

• Analog Inputs: 8 channels, 12-bit resolution, ±10V or 4-20mA configurable

• Analog Outputs: 4 channels, 12-bit, ±10V

• Digital I/O: 16 optoisolated inputs (24V), 16 outputs (transistor, 0.5A)

• Communication: RS-232 and RS-485 ports (Modbus RTU)

Functional Description

The DSP-02 card executes user-loaded algorithms stored in flash memory. It can be programmed in C or assembly using Aeco's development toolkit. Typical routines include PID control, digital filtering (FIR/IIR), Fourier transforms, and predictive models. The board supports a scanning cycle of 100 µs for the control loop, enabling precise regulation of fast processes. It also includes a watchdog timer that resets the DSP if the program crashes.

Physical and Environmental

Dimensions: 185 mm × 105 mm (standard Eurocard). Weight: 0.2 kg. Power supply: 5 VDC (1.5 A) and ±12 VDC (0.2 A) from backplane or external supply. Operating temperature: 0–60°C; storage: -20–80°C; humidity: 10–90% non-condensing. The board is coated with conformal lacquer for protection against dust and moisture. It has a front panel with LEDs for power, run, fault, and communication activity.

Compatibility

The Aeco 158-02 DSP-02 is compatible with Aeco's own PLC backplanes and also with third-party systems via the analog/digital I/O ports. It can be used as a co-processor card in PC-based control systems. The board is commonly found in legacy textile machinery, printing presses, and CNC retrofits. For modern replacement, consult Aeco for the latest DSP-04 series.

Application Examples

Used in high-speed winding machines for tension control, in vibration monitoring systems for predictive maintenance, and as a standalone motion controller for servo axes. The card's ability to execute user-defined algorithms makes it versatile for research and development environments as well.