APPARATUS AND METHOD FOR ALLOWING A FAIL-BACK TO A PRIOR SOFTWARE RELEASE IN A PROCESS CONTROL SYSTEM

摘要

A method includes receiving (202) a request to install a software release, where the software release is to be installed on a first device and/or a second device. The method also includes initiating installation (206) of the software release on the second device and determining (212) whether or not a user wishes to continue with the installation of the software release. The method further includes initiating installation (214) of the software release on the first device if the user wishes to continue. In addition, the method includes restoring (218) a second software release on the second device if the user does not wish to continue. The first and second devices may represent redundant devices, such as a redundant set of controllers (104a-104b) in a process control system or a redundant set of I/O modules (105) that facilitate communication between one or more controllers (104a-104b) and one or more process elements (102a-102b) in the process control system.