Siemens Simatic S7-300 Analog output, isolated, 40-pole8 Analogue output modules can be used to output analogue signals from the PLC to the process. They are suitable for connecting analogue actuators. The analog output modules convert numerical values from the controller into analogue signals (current or voltage) for the process. The module sends extensive diagnostic information to the CPU. In the event of errors, the module sends diagnostic interrupts to the CPU of the controller. The ranges are set