Input Chanel Size and string format

[diam2513]

Good Day,
I have create a device to import some information form our database to Scada. The device is working good but the problem is, our order number are of String type. For exemple 297438-12R10S is an order number. But after reading the database, the input chanel in ASCII format display 297438-1 and not 297438-12R10S, I think the inputs chanels are designed for 64bits only. Is it possible to increase the size ? Or maybe create another format that support strings ?
Thank you in advance for your response.

[Mikhail]

Hello,

1 input channel can contain only 8 Latin characters. You could split your order number into 2 strings and store it in 2 input channels.

We will implement long strings in the next generation of the software.

[diam2513]

Thank you for you answer Mikhail

[Fou]

Still 8 caractere long?

[manjey73]

In version 6, it is now possible to combine channels into an array. To do this, specify the length of the data in the channel table.

An example of text notes.
Note

[Mikhail]

Set the Data Length property of a channel.
Channel of length 1 can contain up to 4 Unicode characters.
If channel length > 1, virtual channels are created in memory. So the number (ID) of the next channel must be the number of the current channel + data length.

[Fou]

I have put a length of 4 but it just replicate the 4 caracteres 4 times

https://ibb.co/4nFTmn93
https://ibb.co/xqQJQHcf

[manjey73]

DataType = UnicodeString
Format – String
InputScript = SplitUnicode(()=> "10-PME-01")

The string must be divided by the channels of the array

[Fou]

Thank you! work fine. i have use Ascii instead to reduce the number of channel.

SplitAscii(()=> “10-PMPE-01”)

[Mikhail]

The above formula useful for constant strings.
If you need to set a string channel manually, use the output formula SetUnicode(). Input formula is empty.

public byte[] SetUnicode()
{
  if (ArrIdx == 0)
  {
    string s = CmdData == null ? "null" : Encoding.UTF8.GetString(CmdData);
    int dataSize = Channel.DataLen ?? 1;

    for (int i = 0; i < dataSize; i++)
    {
      string part = Substring(s, i * 4, 4);
      SetData(CnlNum + i, EncodeUnicode(part), 1);
    }
  }

  return CmdData;
}

SetAscii() can be developed in a similar way.

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