Why separate the Simulink OPC Read block the OPC ItemID in parts because of the commas?

Hi,

I'm trying to read OPC data in Simulink with an OPC Read block.

In the image below you can see the item ID of the OPC tag.

I have selected this item.

After pressing OK the properties of the OPC read block are as shown below. (or pressing apply and then OK)

After closing the properties popup the block in Simulink looks like the picture below.

When i reopen the properties of the OPC read it looks like the picture below.

Here you can see that the item ID is separated by the commas. Can someone tell me what i have to do so that this goes right? Is it required to change a setting or something?

I have read the OPC data direct from Matlab and then it works, this is shown in the picture below.

I hope someone can help me!

With kind regards,

Jonathan