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This should fix the VISA-COM backward compatibility issue.

Upgraded VISA Shared Component to version 7.1.1.Keysight IO Libraries Suite 2022 continues support for features described in the previous versions but with the following changes. Keysight Secure Instrument Communication Expert (SIC Expert).Keysight IO Libraries Suite (installed on test station).Keysight Secure Instrument Communication system consists of three main elements: Keysight also provides a configuration tool called Keysight Secure Instrument Communication (SIC) Expert to configure both instruments and test stations to perform secure communication. To overcome the challenges and support secure communication between instruments and test stations, Keysight is providing updates to certain instruments and Keysight IO Libraries Suite. The challenges to establish a secure connection are: how to proffer the required certificates and authentication information, how to authenticate server/client mutually, and how to configure server/client compatibly, etc. The client authenticates to the server using a server-supported SASL (Simple Authentication and Security Layer) mechanism. HiSLIP r2 also enables authentication: the server (instrument) authenticates its identity by sending an X.509 certificate to the client (VISA library) when the TLS connection is established. HiSLIP r2 enables secure connections, which are achieved using the Transport Layer Security (TLS) for encryption and decryption. Keysight Secure Instrument Communication provides a secure way to control instruments using HiSLIP protocol revision 2.0 (r2).

Keysight Secure Instrument Communication Expert