Phoenix Contact Control Cabinet IO

Input/Output (I/O) is central to every PLC. Input is the energy or information that enters a system and is usually related to sensors, switches, potentiometers, and so on. Output is the energy or information that leaves a system and is usually related to lighting devices, electric motors, alarms and so on. Both digital and analog I/O are fundamental in automation technology. Digital I/O is binary in nature and can either be ON or OFF. Digital input devices are push-buttons, light switches and proximity switches. Digital output devices are relays, motors starters and lights. Analog I/O is a time-varying signal and has a range of values. An analog input into the PLC can increase or decrease in very small increments and the PLC can produce an analog output that acts the same way. Analog input devices are pressure sensors and temperature sensors. Analog output can be used to control the power output on a generator or the position of a needle on an analog pressure meter. 

Phoenix Contact Remote I/O Systems are suitable for all common bus systems and networks. Acquire input and output signals directly in the control cabinet, systems or machines. Phoenix Contact Axioline Smart Elements are system-independent modules without bus communication. The individual element only supports the I/O function. Phoenix Contact Inline system consisting of PLCs, bus couplers and I/Os for the control cabinet, provides an automation and I/O system that can be used in a large number of projects. The open bus concept provides a number of options in various networks.