Bunnell, K.J. Dickerson, C. Nardi, B.G. Novak, D.J. Stanton, D. JACoW Publishing Geneva, Switzerland 2673-5512 978-3-95450-237-0 10.18429/JACoW-PCaPAC2022-THP12 English 69-72 vacuum PLC controls hardware interface Contribution to a conference proceedings 2023 2023-02 https://doi.org/10.18429/JACoW-PCaPAC2022-THP12 https://jacow.org/pcapac2022/papers/thp12.pdf The ATLAS (Argonne Tandem Linear Accelerating System) accelerator at Argonne National Laboratory is upgrading the vacuum control system from hardware-based, embedded controllers to modern flexible PLC- based controllers. This PLC system includes additional fail safes and a new remote operation feature. As part of this upgrade, a need for easy vacuum equipment replacement became apparent, specifically the vacuum gauges which are interfaced using serial communications. We developed an automated process to initialize and restore the configuration for replaced gauges. This simplifies the process and eliminates the need for a system expert for these tasks.