Programmable measurement controller

The A&D Mercury AD4820 is an HMI and PLC measurement and control system all rolled into one complete compact package. The instrument runs a 32 bit RISC processor and uses a real-time operating system, RT Linux. The AD4820 utilises a GUI front end known as virtual console (VC), together with a PLC ladder for controlling all I/O known as measurement and control ladder (MC).

The unit is suitable for system integrators and OEM manufacturers who need control and display mass, stress, flow, pressure, revolution, power, torque and temperature. It is suitable for many industries that require batching of ingredient, blending by mixers, filling containers, emptying vessels and factory automation and control.

The AD4820 is supplied with VC & MC software packages and it comes as standard with an STN colour touch screen, ethernet, USB, RS232, RS485, RS422 ports and full diagnostic firmware for all option cards. The instrument can handle field inputs and outputs such as load cells, resistive temperature, analog 4-20 mA and 0-10 VDC, differential voltages, thermal couples, relay and digital I/O and multiple serial I/O. It is also waterproof to IP65.