EV Charging Terminology

Meter values are recorded readings from a charger or meter, such as energy delivered, power, voltage, current or session readings. It is normally considered alongside charge point management systems, OCPP support, firmware updates, reporting and remote diagnostics.

ModBus RTU is a serial ModBus communication method, commonly used over RS-485. In EV charging, it may be used for meters, load controllers, gateways or site energy management devices.

ModBus TCP/IP is a ModBus communication method that runs over Ethernet/IP networks. In EV charging, it may be used for integration with meters, energy management systems, building controls or load management systems.