常用功能的演示
==================================

.. _查看控制器的日期时间:

1. 查看控制器的日期时间
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.. image:: images/读取系统日期时间.png

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2. 清除不需要的SOE记录
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.. image:: images/清除缓存的SOE数据.png

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3. 函数/功能块的输出，赋值给两个变量
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.. image:: images/运算结果赋值给2个变量.gif

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4. 读取IO模块的诊断状态
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.. image:: images/功能块读模块状态.png

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5. 模拟量转换和报警
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.. image:: images/AI数据转换.png

功能块"AIN_1" :download:`点击下载 <./_static/AIN_1.SFBL>`.


AI3281/AO1681模块通道值与电流的对应关系如下：

+----------------------------+----------------------------+
|码值/Raw count              |电流值/mA                   |
+----------------------------+----------------------------+
|65535                       |22                          |
+----------------------------+----------------------------+
|61067                       |20.5                        |
+----------------------------+----------------------------+
|59577                       |20                          |
+----------------------------+----------------------------+
|47662                       |16                          |
+----------------------------+----------------------------+
|35746                       |12                          |
+----------------------------+----------------------------+
|23831                       |8                           |
+----------------------------+----------------------------+
|11915                       |4                           |
+----------------------------+----------------------------+
|10426                       |3.5                         |
+----------------------------+----------------------------+
|0                           |0                           |
+----------------------------+----------------------------+

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6. 添加引用库
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.. image:: images/添加引用库操作.gif