Siemens PSI-MODEM-SHDSL/ETH Series Input Unit, Analogue

Keep track of your industrial hardware from a PLC with this Siemens input module. Its eight analogue inputs let you track changes across eight machines at once, making it a go-to component for managing complex automated systems. Staying up-to-date is easy, thanks to an 8ms cycle time, which helps you see movements in your system as they happen. The unit's 16-bit voltage reading resolution means you can rest assured it catches even minor changes. As it comes with built-in diagnostics, it alerts you when faults come up and spares you the hassle of complex troubleshooting. Modules like this help control systems in renewable energy installations and warehouses.

• Power use of just 0.7W, so it helps limit your control device's energy consumption
• Uses a 24V DC supply voltage to work with standard power sources
• Compact dimensions of 15 (W) x 73 (H) x 58mm (D) to fit into busy systems

Digital signals are either on or off like a light switch. Analogue signals like the ones this unit uses are scaling, meaning they range between a minimum and a maximum value, like a dimmer switch.