Mixed I/O on Quantum
The 140DDM69000 is a Modicon Quantum mixed discrete I/O module that is now end-of-life, meaning sourcing goes through surplus or broker channels for urgent BOM fills. It packs 4 sink inputs rated at 125 VDC and 4 source-or-sink solid-state outputs handling 24 to 125 VDC at up to 4 A per point. Response time is 0.5 or 1.5 ms depending on the noise filter setting. Protection is built in: each output group has a 5 A fuse, transient voltage suppression on outputs, and resistor-limited inputs. Channel-to-channel isolation is rated 1780 Vrms for 1 minute, and group-to-bus isolation is 2500 Vrms. Addressing takes one input word and one output word, and the module draws 350 mA from the bus.
Sourcing an End-of-Life Module
This module is end-of-life and no longer in production. Sourcing is via surplus or broker channels for new-in-box units from cancelled orders.
Field Wiring and Commissioning
Input wiring is sink logic. Outputs can be wired as source or sink. Watch the maximum leakage current: 1.2 mA at 150 VDC and load capacitance limits of 0.1 µF at 150 VDC or 0.6 µF at 24 VDC. The module operates up to 5000 m altitude and 95% relative humidity without condensation. Bus current budget is 350 mA; power dissipation is 0.4 W plus input and output loads.
