Hi,

When you insert for example a MotL in CFC, you can open the properties of this block and assign a block icon number under: "Create block icon".

Prerequisite is that option: "OCM possible" is activated and "Create block icon" option is activated.

During OS compile, a block icon is created for each MotL in CFC which is taken from picture: "@PCS7TypicalsAPLV8.pdl". This is basic functionality of PCS7 and the reason why bulk engineering is very easy.  

The block icons in the picture has some tag connections which refer to the block you insert in CFC.

For instance, attribute: "Type" has value: "@MotL/1". This means the block icon has reference to the block type: MotL and @ means that a block icon is created automatically by the system if it detects a block type in CFC. "/1" means the block icon number. If you insert block icon number 10 in CFC and also for the block icon, so-> @MotL/10. Then this block icon is generated for each MotL block which has block icon number 10.

In the block icon, tags are inserted, but they are not real tags. Instead, they are displayed starting with a dot ".". This means during compile, the system will generate the prefix -> CFC chart name/Block name (according to your plant hierarchy settings) and will add the suffix behind it.

So each block icon instance is unique.