Blue square beside text

Valid call instructions, that is, Block and Watch instructions to other blocks in the method.

Blue square with a red cross

Call instruction that contains one or more invalid instructions.

Bold text

Valid instructions.

Red dot

Instructions with invalid syntax. All such instructions must be deleted or changed before a method can be run. See How to change or move method instructions.

The instructions may be of the following types:

• Calls to blocks which are not defined in the method

• Instructions that apply to a different system strategy (can occur if a method is written for one system and saved for another)

• Instructions for components that have not been selected in the System Setup.

Normal text

Instructions that will not be executed because

• they are positioned after the end of a block or method

  or

• they constitute a block to which there is no call.

Text with a loop symbol

When a block is called from within itself this will generate a potentially infinite loop, which might exceed the maximum number of calls allowed in a method.