Lenze ETC Motion Control - Manual (Page 180)

CNC programming
Data fields
P field
3
3.5
3.5.1
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180 EDSTCXN EN 2.0
3.5 Data fields
3.5.1 P field
For programming with variables, a data field (the parameter or P field) is
available in the control. This data field contains different data:
ƒ Internal data of the NC computer
This data is created by the processing of a program and/or reflects certain
states of the NC computer. Only read accesses can be made to this data.
The access to most of this data is time synchronized.
ƒ Data for cycles and macros
This area is reserved for use in cycles and macros. In this area, data is
transferred from the NC computer to the cycles. In addition, it is used as
a variable area for the cycle programs. Cycles and macros have a write and
write access to this data, user programs should only have read access to
this area. The access is not time synchronized.
ƒ Data for user programs
This area is provided for free use in user programs. These have write and
read access. The access is not time synchronized. The meaning of the
parameters is program−dependent.
The parameter field has a default size of 2048 entries; these can be enlarged
with the machine constant MK_PFELD_GROESSE user−specifically.
0
1023
Internal data of the NC computer
1024
1499
Data for cycles
1500
2047
User data
2048
MK_PFELD_GROESSE
Enhanced P field
The parameter field can be accessed by
ƒ G functions
ƒ Arithmetic functions (formula processor)
ƒ Messages of the MMI
ƒ Messages of the PLC
Distribution