Analog inputs record process signals such as pressure or temperature and forward them in digitalized format (16-bit format) to the control. They are suitable for the measurement of current (2-wire and 4-wire transmitters), voltage, and resistance, as well as for the connection of resistance thermometers and thermocouples (measurement types depend on the module).
Analog outputs convert a 16-bit digital value into a current or a voltage and output this to the process. They are suitable, for example, for controlling proportional valves or small servo drives.
Mfr. Part No. | Description |
6ES7534-7QE00-0AB0 | S7-1500, AI/AQ 4XU/I/RTD/TC; 2XU, I ST |