Siemens SINUMERIK 840D sl Programming Manual page 404

Work preparation
3.1 Flexible NC programming
<limit values>:
<access rights>:
<init_time>:
<init_value>:
<data class>:
Example
Redefinitions of system variable $TC_DPCx in the data block for machine manufacturers
Program code
%_N_MGUD_DEF
404
Lower/upper limit
LLI <limit value>:
ULI <limit value>:
See "Attribute: Limit values (LLI, ULI) (Page 408)".
Note
Cannot be redefined for:
● System variables
● Global user data (GUD) of the data types: BOOL, AXIS,
STRING, FRAME
Access rights for reading/writing via part program or OPI
APX <protection level>:
APRP <protection level>:
APWP <protection level>:
APRB <protection level>:
APWB <protection level>:
<protection level>:
See "Attribute: Access rights (APR, APW, APRP, APWP,
APRB, APWB) (Page 412)".
Point in time at which the variable is reinitialized
Power On
INIPO:
End of main program, NC reset or Power On
INIRE:
NEWCONF or main program end, NC reset
INICF:
or Power On
End of main program, NC reset following lo‐
PRLOC:
cal change or Power On
See "Attribute: Initialization value (Page 406)".
Initialization value
When redefining the initialization value, an initialization time
always has to be specified also (see <init_time>).
See "Attribute: Initialization value (Page 406)".
For the Initialization of array variables, see "Definition and ini‐
tialization of array variables (DEF, SET, REP) (Page 417)".
Note
Cannot be redefined for system variables, except setting data.
Data class assignment (only SINUMERIK 828D)
Data class M (= Manufacturer)
DCM:
Data class I (= Individual)
DCI:
Data class U (= User)
DCU:
; GUD block: Machine manufacturer
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Lower limit value (lower limit)
Upper limit value (upper limit)
Execute: NC language ele‐
ment
Read: Part program
Write: Part program
Read: OPI
Write: OPI
Range of values: 0 ... 7
NC programming