Check Commands

Chromeleon allows you to perform various checks:

Syntax Check

A syntax check is automatically performed for each Program. The syntax check verifies that a program complies with the program syntax. For example, the syntax check may detect the following errors:

• Exceeded value ranges

• Incorrect punctuation

• Misspellings

Errors that are detected by the syntax check are written in red letters.

Semantics Check

The semantics check verifies the (chromatographic) meaning of a program. This includes, for example, the following checks:

• Is the total of all partial flows 100%?

• Does the program contain an Inject command at the time t = 0.000?

• Are the Inject/AcqOn/Off commands listed in the correct order?

• Is the minimum difference between the emission and the excitation value observed?

• Is the last command an End command? (Absolutely necessary)

To check the semantics of a PGM File, select Check on the context menu in the PGM Editor. To check the semantics of a script button, right-click on the button, select Properties on its context menu, and then click Check on the Command tab page. Detected errors are indicated in a dialog box.

Ready Check

The Ready Check checks whether the connected instruments are ready to operate; for example, to process a sample batch. The check includes:

• Is the instrument turned on?

• Are all instruments connected correctly?

• Is the lamp turned on?

• Are all required files available?

• Is there sufficient storage capacity?

In the Batch dialog box, click Ready Check to perform the ready check. In addition, a ready check is performed automatically for each online command. If a problem occurs, an error message or warning appears.

The semantics check usually includes the syntax check. The ready check usually includes the semantics check.