Field device and detector

A detector comprising:

• a sensor configured to acquire an analog measurement signal;
• an analog-to-digital converter configured to convert the analog measurement signal to a digital signal;
• and
• a first processor configured to convert the digital signal into a measurement value to generate a digital signal representing at least the measurement value, to transmit, to a converter, the digital signal representing at least the measurement value, which was generated by the first processor, together with the analog measurement signal that was acquired by the sensor.

A method comprising:

• converting, by a detector, an analog measurement signal to a digital signal;
• converting, by the detector, the digital signal into a measurement value to generate a digital signal representing at least the measurement value;
• transmitting, by the detector, the digital signal representing at least the measurement value and the analog measurement signal from the detector to a converter;
• converting, by the converter, the digital signal representing at least the measurement value into a unified instrumentation signal to output the unified instrumentation signal;
• and
• transmitting, by the converter, to a converter, the digital signal representing at least the measurement value, which was generated by the first processor, together with the analog measurement signal that was acquired by the sensor.