Detailed description
2.12 Block descriptions
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
137
PI service: DELETO
Delete function tool:
Deletes the tool assigned to the transferred T number with all cutting edges (in TO, in some
cases TU, TUE and TG (type 400), TD and TS blocks).
Parameterization
Signal
Type
Value range
Meaning
PIService
ANY
PI.DELETO
Delete tool
Unit
INT
1, 2
TOA
WVar1
INT
T number
PI service: MMCSEM
Semaphores for various PI services
For use by MMC and PLC
10 semaphores are provided for each channel. These protect critical functions for the
MMC/PLC. By setting the semaphore for the corresponding function number, several
MMC/PLC units can be synchronized with it in cases where a function contains a critical
section with respect to data to be fetched by the NCK. Semaphores are managed by the
MMC/PLC. A semaphore value of 1stipulates a Test & Set operation for the semaphore of
the specified function number. The return value of the PI service represents the result of this
operation:
•
Checkback value Done := TRUE:
Semaphore has been set, critical function can be called.
•
Checkback value Error := TRUE with state = 3: Semaphore was already set, critical
function cannot be called. The operation must be repeated later.
Note
On completion of the operation (reading data of this PI service) it is essential that the
semaphore is enabled again.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...