Programming Q Parameters | String parameters
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HEIDENHAIN | TNC 320 | ISO Programming User's Manual | 10/2017
9.10 String parameters
String processing functions
You can use the QS parameters to create variable character strings.
You can output such character strings for example through the D16
function to create variable logs.
You can assign a linear sequence of characters (letters, numbers,
special characters and spaces) up to a length of 255 characters to
a string parameter. You can also check and process the assigned
or imported values using the functions described below. As
in Q parameter programming, you can use a total of 2000 QS
parameters.
Further information: "Principle and overview of functions",
page 338
The STRING FORMULA and FORMULA Q parameter functions
contain various functions for processing the string parameters.
Soft key
Functions of the STRING FORMULA
Page
Assigning string parameters 401
Read out machine parameter 410
Chain-linking string parameters 401
Converting a numerical value to a
string parameter
403
Copy a substring from a string
parameter
404
Read system data 405
Soft key
Formula string functions
Page
Converting a string parameter to a
numerical value
406
Checking a string parameter 407
Finding the length of a string parame-
ter
408
Compare alphabetic priority 409
When you use the STRING FORMULA function, the
result of the arithmetic operation is always a string.
When you use the FORMULA function, the result of the
arithmetic operation is always a numeric value.