Omron Compact PLC expansion module
Omron Digital I / O Module: Input and output expansion modules for modular PLCs that wait for and send a digital signal of "1" or "0" at 24V in general. Output type can be Transistor, including PNP or NPN input and output. The pulse output module is suitable for controlling the controllers with pulse-dir signals (e.g. servo and stepper motors) and the pulse input module is suitable for receiving the signal of sensors generating a pulse signal (e.g. encoder). The relay output for switching consumers with higher currents (usually more than 400mA).
Omron Analog I / O Module: Compared to a digital I / O module, analog modules do not works with simple bit communication but can transform voltage or current to range. The input is usually served by analog sensors, which convert the above-mentioned voltage or analog ranges to certain unit (temperature, distance).
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