摘要:
The invention relates to an electrical field device (1) which comprises a microprocessor-controlled control device (1), a local-mode data memory associated with the control device (2) and a data interface (6) connected to the control device (2). The aim of the invention is to provide an electrical field device of the aforementioned kind which allows exchange of external data with the field device in a simple manner. For this purpose, the data interface (6) is adapted to receive an external passive data memory module (7). The invention also relates to a method for transmitting data between the field device and an external passive data memory module.
摘要:
The invention relates to a measuring device for measuring a voltage by means of a capacitor that has the voltage to be measured applied to the first terminal thereof, in which external connection points of the measuring device are provided for direct connection to the second terminal of the capacitor and earth potential, wherein the voltage measuring device has an electronic measuring device that is connected to the external connection points and has low input resistance, and an integration device is arranged downstream of said electronic measuring device. The invention further relates to a use of the measuring device, and a method for measuring a voltage.