The ABB DSPP4LQA, also cataloged under manufacturing part number HENF209736R0003, operates as a high-performance Digital Signal Processing (DSP) module designed for real-time mathematical algorithms, high-speed signal analysis, and computational control loops within advanced industrial automation systems.
Hardware Specifications
Parameter
Specification
Model
DSPP4LQA
Part Number
HENF209736R0003
Brand
ABB
Origin
Germany / Sweden
Product Type
PLC Module
Processing Architecture
High-speed dedicated DSP processor core
Onboard Volatile Memory
256 MB RAM
Non-Volatile Storage
512 MB Flash
System Supply Voltage
24 V DC
Nominal Power Consumption
10 W
Operating Temperature
-20 to +70 deg C
Physical Dimensions
150 mm x 100 mm x 50 mm
Net Module Weight
0.5 kg (1.10 lbs)
Industrial Control and Drives Backplane Communication Velocity
The DSPP4LQA runs demanding algorithmic computations—such as Fast Fourier Transforms (FFTs) for vibration analysis, predictive modeling, or high-axis robotics kinematics—independently of the primary system CPU. To pass these calculated values without introducing processing overhead, the card transfers data across the local network at maximum backplane bus communication velocity. This rapid data movement prevents computational bottlenecks during complex multidimensional loop updates, enabling tight I/O density scaling options across multi-rack control clusters. The onboard 512 MB non-volatile Flash layout retains baseline parameters and calibration data, offering full firmware flash compatibility so that upgraded signal filters and protocol stacks can be updated remotely across the system bus.
