Read a multi dimension array

[reyphilipp]

Hi,

How i can read, example test[0,1] ?

[cwchien]

Try readTag("test[0][1]", short(1))

If you want to read along with the second dimension, try readTag("test[0][0]", short(10))

[MFolte]

Hi,

I'm also having trouble reading from and writing to a multidimensional array.

I have a DINT array as such: dintArray2[10][10].

I am able to read all 100 array elements at once by using device.readTag("dintArray2", (short)100). In the same way I'm able to write back all 100 array elements at once.

However that's not what I want. I need to be able to write back a single element in a multidimensional array.

For a one dimensional array it's as easy as device.readTag("dintArray1[1]").
Unfortunately the doesn't work for multidimensional array like device.readTag("dintArray2[1][1]").

[yue792069154]

Unfortunately the doesn't work for multidimensional array like device.readTag("dintArray2[1][1]")

Have you solved it yet？

[cwchien]

If you want to read single element, you have to use device.readTag("dintArray2[1][1]", (short)1), the (short)1 means you want read one element start from "dintArray2[1][1]" (value at "dintArray2[1][1]").

If you want to read 5 elements, you have to use device.readTag("dintArray2[1][1]", (short)5), means read values from "dintArray2[1][1]" to "dintArray2[1][5]".

And also remember that array index start from 0, so index 1 in fact the second element.

Best Regards,
Chien

[yue792069154]

This is the program I wrote：

This is the tag inside the PLC

Unable to read, error reported as follows：
etherip.data.CipException: Status: 0x05 [Path destination unknown, The path is referencing an object class, instance or structure element that is not known or is not contained in the processing node. Path processing shall stop when a path destination unknown error is encountered.] - Extended: 0x00

[cwchien]

You can't just print CIPData because it's a structured data. You have to use access methods to "extract" it (ex. getNumber, getString...).

This is my util class to deal with Number/Boolean/String CIPDatas and compatible with multidimensional array, it's writen in Groovy but very similar with Java.
Hope it helps. :)
https://gist.github.com/cwchien/0060ff0786bbc7bd4f5955a8b92305ee