The increasing importance of upgrading

被引：0
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作者：
Jenkinson, Gavan [1 ]
Smith, Marty [1 ]
Roberson, Stephan [1 ]
机构：
[1] Zeeco, United States
来源：
Hydrocarbon Engineering | 2023年 / 28卷 / 10期
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摘要：
There are three ways to replace a discontinued PLC with a new version. There are new PLCs that have conversion options to upgrade the CPU but utilise existing or new I/O cards. The wiring swing arms will work with the new component, so a complete rewire of the panel is unnecessary. The new rack can be prebuilt and tested before being installed in an existing control panel.
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页码：67 / 71
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