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Comments (6)

dathlin avatar dathlin commented on July 22, 2024

hslcommunicationdemo本身提供了这个虚拟服务器，可以用作没有PLC时候的测试

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lylyuanliang avatar lylyuanliang commented on July 22, 2024

我使用hsl虚拟模拟器, 然后发现了个问题, 暂时不知道什么原因造成的

前置描述:
内存类型: R
操作步骤: R1写入long类型数据9223372036854775807, R9写入short类型数据32767

问题描述1
按照我的推测, long类型数据占用了8个字节, R1为long类型, 那么我的下一个内存地址得为R9才不会影响R1的值, 但实际测试发现, 我对R5写入值都不会影响R1的值, (对R4写入会影响),
我的疑问是: R1已经为long了, 为啥下一个可用的地址是R5而不是R9呢

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dathlin avatar dathlin commented on July 22, 2024

因为R1 一个地址占2个字节

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lylyuanliang avatar lylyuanliang commented on July 22, 2024

因为R1 一个地址占2个字节

基于这个, 现在发现了另一个问题, R1写入字符串 abcdef, 长度为6, 按照一个地址2个字节, 我在R4写入应该不会有问题, 但实际R4写入后, R1的值受到了影响
image

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dathlin avatar dathlin commented on July 22, 2024

你截图中字符串读取，前面有个长度，默认是10，你要读取R1-R3的字符串的话，长度输入 3 就可以

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lylyuanliang avatar lylyuanliang commented on July 22, 2024

你截图中字符串读取，前面有个长度，默认是10，你要读取R1-R3的字符串的话，长度输入 3 就可以

感谢大佬! 另外再额外请教一下, GE SRTP设计的内存地址都是一个地址占两个字节吗, 我看到代码中WordLength为2

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