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西门子S7-300 PLC模拟量转换

  • 资源大小:66 K
  • 上传时间: 2013-11-17
  • 上传用户:blueandylaw
  • 资源积分:2 下载积分
  • 标      签: 300 PLC 西门子 模拟量

资 源 简 介

Analog Inputs and Outputs in an S7 PLC are represented in the PLC as a 16-bit integer. Over
the nominal span of the analog input or output, the value of this integer will range between -
27648 and +27648. However, it is easier to use the analog values if they are scaled to the
same units and ranges as the process being controlled. This applications tip describes
methods for scaling analog values to and from engineering units.

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