HEIDENHAIN TNC 620 (340 56x-03) - Manual (Page 288)

288 Programming: Q Parameters
8.1
1
Str
ing P
a
ra
met
e
rs Reading machine parameters
Use the CFGREAD function to read out TNC machine parameters as
numerical values or as strings.
In order to read out a machine parameter, you must use the TNC’s
configuration editor to determine the parameter name, parameter
object, and, if they have been assigned, the group name and index
:
Each time you want to interrogate a machine parameter with the
CFGREAD
function, you must first define a QS parameter with attribute,
entity and key.
The following parameters are read in the CFGREAD function’s dialog:
„ KEY_QS : Group name (key) of the machine parameter
„ TAG_QS : Object name (entity) of the machine parameter
„ ATR_QS : Name (attribute) of the machine parameter
„ IDX : Index of the machine parameter
Type Meaning Example Symbol
Key Group name of the
machine parameter (if
assigned) CH_NC
Entity Parameter object (the
name starts with "Cfg...") CfgGeoCycle
Attribute Name of the machine
parameter displaySpindleErr
Index List index of a machine
parameter (if assigned) [0]
If you are in the configuration editor for the user
parameters, you can change the display of the existing
parameters. In the default setting, the parameters are
displayed with short, explanatory texts. To display the
actual system names of the parameters, press the key for
the screen layout and then the SHOW SYSTEM NAME
soft key. Follow the same procedure to return to the
standard display.