Data Transfer Nc - Nc Program (Fn17: Sysread) - HEIDENHAIN iTNC 530 Technical Manual

8.5.4 Data Transfer NC → NC program (FN17: SYSREAD)
Group Group
name number
ID....
Program information
10
Machine state
20
February 2002
You can use the FN18: SYSREAD function particularly for OEM cycles if you wish
to access certain NC data, e.g., active tool compensation values, from the NC
program. A group number, a system data number, and an index specify the
particular item of system data that you read:
FN18: SYSREAD Qxxx = IDxxxx NRxxxx IDXxxxx (xxxx: Q parameter or
numerical value); comment
System data System data
number index
NR.... IDX....
1 –
2 –
3 –
4 –
1 –
2 –
3 –
4 –
5 –
8 –
9 –
11 –
15 Number of the
logical axis
Data Transfer NC → PLC, PLC → NC
System data item
mm = 0, inch = 1
Overlap factor for pocket milling
Number of the active fixed cycle
Number of the last DEF-active OEM
cycle
Tool number
Prepared tool number
Active tool number
0 = X 6 = U
1 = Y 7 = V
2 = Z 8 = W
Programmed spindle speed
Active spindle status
–1 = Spindle status undefined
0 = M3 active
1 = M4 active
2 = M5 active after M3
3 = M5 active after M4
Active coolant status
0 = off, 1 = on
Active feed rate
Index of the active tool
Assignment of the logical axes and
geometrical axes (0 = X, 1 = Y, 2 = Z,
3 = A, 4 = B, 5 = C, 6 = U, 7 = V, 8 =
W)
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