SD CARD BASED RTU

摘要

A system includes a remote terminal unit (RTU) and a portable storage medium (PSM), such as a secure digital (SD) card. The RTU includes processing circuitry. The RTU includes a portable storage interface configured to physically connect to the PSM and electrically couple the PSM to the processing circuitry. The RTU includes on-chip memory. The processing circuitry is configured to determine that the PSM is coupled to the processing circuitry and access a specified folder of the PSM. The processing circuitry is configured to: in response to determining that the PSM stores function code in the specified folder, perform a specified function corresponding to the function code by executing the function code.

主权项

1. A method comprising:
determining, by processing circuitry of a remote terminal unit (RTU), that a portable storage medium (PSM) is coupled to the processing circuitry; and in response to determining that the PSM stores function code in a specified folder that the processing circuitry is configured to access, performing a specified function corresponding to the function code by executing the function code, wherein the RTU comprises a slot configured to physically receive the PSM and electrically couple the PSM to the processing circuitry, and an on-chip memory mounted on a same chip as the processing circuitry.