The ABB DSDP 140A, also cataloged as the DSDP 140A Digital Signal Module, operates as a dedicated hardware component for high-speed pulse processing and frequency measurement tasks within ABB Advant and master controller networks.
Hardware Specifications
Parameter
Specification
Model
DSDP 140A
Brand
ABB
Origin
Sweden
Weight
Standard subrack baseline
Dimensions
Standard Advant controller rack format
Operating Temp
0 to +55 deg C (Standard industrial baseline)
Power Consumption
Subrack backplane-dependent
Product Type
Pulse Counter / Position Matching Modules
Signal Processing
High-speed digital pulse input channels
Backplane Bus Communication Velocity and Network Determinism
The DSDP 140A handles high-frequency digital signal parsing, translating raw pulse trains from field encoders or flow meters into data registers without lowering the main backplane bus communication velocity. The module processes rapid pulse counts locally using independent counter registers, ensuring that fast-moving signal edges do not cause interrupt bottle-necks or impact master controller cycle times. This independent processing maintains absolute firmware flash compatibility with upstream controller racks, providing predictable execution clocks and stable I/O density scaling inside deterministic networks.
