mAAnalogausgänge

mAAnalogausgänge, often referred to as current analog outputs, are a common method of transmitting analog signals in industrial automation and control systems. These outputs generate a current proportional to a measured physical value, such as temperature, pressure, or flow. The standard signal range for mAAnalogausgänge is typically 4-20 mA. This specific range is chosen because the 4 mA offset provides a live zero, meaning that a 4 mA output indicates the lowest possible value of the measured variable, while 0 mA could signify a fault or a disconnected wire. The 20 mA represents the maximum value of the measured variable.

This 4-20 mA standard offers several advantages. It is less susceptible to noise and signal degradation over long distances compared to voltage-based analog signals. The current loop also allows for power to be supplied to field devices, such as sensors, through the same two wires that carry the signal. This simplifies wiring and reduces installation costs. mAAnalogausgänge are widely used in applications where precise and reliable measurement and control are critical. They are found in process control, building automation, and various manufacturing environments. The interpretation of the current signal is done by receiving devices, such as controllers or indicators, which convert the current back into a meaningful physical unit.