The increasing importance of upgrading

被引：0

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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D O I：

暂无

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学科分类号：

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