Micromod MOD: 30ML Display Script Guide Manuale Utente Scaricare il pdf (Pagina 49)

MOD 30ML Display Guide

Display Scripts

3.2.7 RETURN Statement

The RETURN statement indicates immediate exit from an event script. This prevents the

script from performing any additional functions, including pre-defined system level

functions. In other words, RETURN statements are used to keep the instrument operating

system from taking over a key event that is normally defined by the system, when a

custom script has been developed for that key. RETURN statements would be used at the

end of key event scripts for the Alarm, Tag, Up and Down keys. If the RETURN

statement is not used at the end of a key event definition, which is normally defined by the

system (such as Alarm), the custom function will be processed and then the system-

defined functions for that key will happen as well.

 A symptom of this is the Alarm key bringing up active alarms after it has performed its

special function.

Key events that are normally system defined can be returned back to the system by

making the RETURN statement conditional.

3.2.8 Annotating Scripts

Comments or notes may be inserted in a script file for reference. Comments must start

with a forward slash followed by an asterisk ( /* ), and end with an asterisk followed by a

forward slash ( */ ). Text enclosed within these symbols is not executed as script.

This method can also be used to temporarily disable sections of script during

troubleshooting.

Figure 3 .6.

Example of

annotated script

SCROLL_PRESSED: /* when scroll key is pressed */

{

IF SCRLCNT >= 1 THEN /* if the input SCRLCNT is >=1 */

SCRLCNT = 0; /* set SCRLCNT to zero */

ELSE

SCRLCNT = SCRLCNT + 1; /* otherwise add 1 to SCRLCNT */

}

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Micromod MOD: 30ML Display Script Guide Manuale Utente Pagina 49