Siemens SINUMERIK 828D Function Manual page 559

G groups
An initial programming setting can be specified for each of the available G groups using
MD20150 $MC_GCODE_RESET_VALUES (reset state of G groups). This initial setting is automatically active
during program start or in Reset until it is deselected by a G command from the same G group.
Via the MD22510 $MC_GCODE_GROUPS_TO_PLC (G codes, which are output to interface NCK-PLC after
block change/RESET), the output of the G codes to the PLC interface can be activated.
A list of G groups with the associated G functions is available in:
References:
/PG/ Programming Manual Fundamentals
Basic configurations of the NC language scope for SINUMERIK solution line
For SINUMERIK 840D sl, certain basic configurations of the NC language scope can be generated (configurable)
via machine data. The options and functions of the NC language scope is specially tailored (configured) to the
needs of the user.
NC language scope
The way that non-active options and functions should be moved with NC language commands can be set via the
machine data MD10711 $MN_NC_LANGUAGE_CONFIGURATION:
0: All available language commands can be programmed. Whether or not the needed function is activated can
only be recognized upon execution. This corresponds to the default setting for previous controls such as
SINUMERIK 840D and 840Di.
If only certain options are enabled and not all operations are available:
1: All the language commands are known. Language commands for non-enabled options are already recognized
at the beginning of the program interpretation and lead to the alarm 12553 "option/function is not active."
2: Only those language commands are known, which correspond to the current scope of enabled options of the
NCK software. All commands for non-enabled options are not recognized and trigger the alarm 12550 "Name not
defined or option/function not available".
Note
Option-free functions also have the status "enable option"
If only certain functions activated are:
3: All the language commands are known. Non-activated functions are already recognized at the beginning of the
program interpretation and result in the alarm 12553 "Option/function is not active". For example, if the option
date is set for the cylinder coat transformation, but the transformation is not activated in machine data MD24100
$MC_TRAOF_TYPE_1, then the programming of TRACYL triggers the alarm 12553.
4: Only those NC language commands are known, which correspond to the current scope of active functions of
the NCK software. All commands for non-active functions are not recognized and trigger the alarm 12550 "Name
not defined or option/function not available". Whether the command in question is generally unavailable in the
Siemens NC language or whether this is true only on the corresponding system cannot be distinguished in this
scenario.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
9.9 Program operation mode
559