Generally, the ABLE Act permits a state to establish and maintain a new type of tax-advantaged savings program (under Section 529A of the Internal Revenue Code). Contributions may be made to a 529A account established for a designated beneficiary to pay for qualified disability expenses. Guidance.
See footnotes for more details. OPC is implemented in server/client pairs. The OPC server is a software program that converts the hardware communication protocol used by a PLC into the OPC protocol. The OPC client software is any program that needs to connect to the hardware, such as an HMI.
As such, the acronym OPC was borne from OLE (object linking and embedding) for Process Control. These specifications, which are now known as OPC Classic, have enjoyed widespread adoption across multiple industries, including manufacturing, building automation, oil and gas, renewable energy and utilities, among others.