Compact controllers are either fixed or modular and can therefore be extended. The inputs for the actual value are often universal and can be configured for different types of sensors and signals.4 Digital inputs are also available for the detection of switching operations. Various binary switching elements are available as outputs, such as relay, semiconductor relay, logic and MosFET outputs, and are used either for controlling binary actuators or for control signals. The analog outputs can be configured as voltage or current output, e.g. 4 ... 20 mA / 0 ... 10 V and are used for the continuous control of analog actuators such as, for example, control valves, thyristor power controllers or frequency converters.5
The operation, parameterization and configuration can be carried out via the device front, in addition, configuration programs are supplied in which the settings for the user can be clearly arranged. The connection between PC and controller can be established via USB, TCP / IP or serial interfaces.6
"How to choose an industrial automation controller". Control Engineering. 8 August 2018. Retrieved 20 April 2019. https://www.controleng.com/articles/how-to-choose-an-industrial-automation-controller/ ↩
Pannocchia, Gabriele (2015). "Whither Discrete Time Model Predictive Control?". IEEE Transactions on Automatic Control. 60 (1): 246–252. doi:10.1109/TAC.2014.2324131. hdl:11568/516670. S2CID 16389448. /wiki/Doi_(identifier) ↩
Higuera, J. E, and Polo, J (2011). "IEEE 1451 Standard in 6LoWPAN Sensor Networks Using a Compact Physical-Layer Transducer Electronic Datasheet". IEEE Transactions on Instrumentation and Measurement. 60 (8): 2751–2758. doi:10.1109/TIM.2011.2129990. S2CID 506515.{{cite journal}}: CS1 maint: multiple names: authors list (link) /wiki/Doi_(identifier) ↩
"Electrical Relay". ElectronicsTutorials. Retrieved 20 April 2019. https://www.electronics-tutorials.ws/io/io_5.html ↩
"Ethernet Based Application Layer Protocol for Industrial Automation". Real Time Automation. Retrieved 20 April 2019. https://www.rtautomation.com/technologies/ethernetip/ ↩