SYSTEMDATE, SYSEMTIME, GETTEXT help

As the title says I need help understanding where these system functions come from.
I get what they do. I don't know where I can go and find a bunch of these data tags to grab all sorts of information from my program. Below I have 3 examples. On one of the examples can someone explain to me what the 191,1 means? I get its pulling the file header but what do the numbers mean exactly?

ASSIGN/SYSDAT1=SYSTEMDATE("MMMM dd yyyy")
            ASSIGN/SYSTIM1=SYSTEMTIME("HH:mm:ss")
            ASSIGN/FILEHDR=STR(GETTEXT(191,1,{FILEHDR}))

Cris_C over 1 year ago

Here is a link to the section of the help file that lists most of the Functions: Functions List (hexagonmi.com)

The GETPROGRAMINFO Function can get a lot of the generic measuring routine and system information.
The GETTEXT Function can get information about individual features in a measuring routine. Tricky to use at first, but there are lots of good examples to get started with in the help file and the forum.

Using the Expression Builder can be handy because it will give you a quick description of each function as you build up an assignment expression. Good for when you know about a function but can't remember the exact name. Link: Creating Expressions with the Expression Builder (hexagonmi.com)
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