The 140-DDI-841-00-SQD is a discrete input module designed for automation systems, specifically within the Modicon Quantum series. It features 16 input channels with a voltage range of 10 to 60 V DC, suitable for logic input applications with positive (sink) configuration. The module supports a switching frequency of up to 100 Hz and has a weight of approximately 0.66 lb (0.3 kg). It operates with input voltages of 12 V (5–10 mA DC) and 24 V (6–30 mA DC), making it compatible with standard industrial control voltages. The module utilizes a backplane connection and is ideal for use in PLC discrete input configurations.
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