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Comments (9)

dathlin avatar dathlin commented on July 3, 2024 1

最新版不需要输入,内部自动分析字符串长度的,或是传0也可以。

如果你用的特别老的版本,则可能不行

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dathlin avatar dathlin commented on July 3, 2024

不太明白,读到历史值是什么意思

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nm-1216 avatar nm-1216 commented on July 3, 2024

image

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nm-1216 avatar nm-1216 commented on July 3, 2024

怎么拿实际值? 有方法么

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nm-1216 avatar nm-1216 commented on July 3, 2024

image

随便写了一个,不知道hsl 里面有没有自带

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dathlin avatar dathlin commented on July 3, 2024

在hsl里有自带的,例如你得字符串存储在 DB1.0 里面,那么可以直接调用下面的方法

OperateResult<string> read = plc.ReadString("DB1.0"); if (read.IsSuccess) { string value = read.Content; }

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nm-1216 avatar nm-1216 commented on July 3, 2024

不写长度就是得?

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nm-1216 avatar nm-1216 commented on July 3, 2024

在hsl里有自带的,例如你得字符串存储在 DB1.0 里面,那么可以直接调用下面的方法

OperateResult<string> read = plc.ReadString("DB1.0"); if (read.IsSuccess) { string value = read.Content; }

不行,必须输入长度,西门子PLC,开始两个字符是 总长度与有效长度,得转

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nm-1216 avatar nm-1216 commented on July 3, 2024

image
image

image

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