Siemens SINUMERIK 828D Commissioning Manual page 268

Tool management
9.2 PLC - NCK user interface
Signal description:
● Acknowledgment OK (DB43xx.DBX100.0): Positive feedback of acknowledgment status.
● Acknowledgment error (DB43xx.DBX100.1): Negative feedback of acknowledgment
Error status:
If there is an error, the error status (DB43xx.DBB104) contains a diagnostic number unequal
to zero.
Status
0
1
2
3
4
5
7
Other values:
The error status is reset by acknowledgment of the error by the user.
268
The acknowledgment of the PLC user program (area DB42xx.DBB0 to DBB3) was
transferred without error to the tool management. This signal is reset after one PLC cycle.
status.
There is an error in the acknowledgment of the PLC user program (area DB42xx.DBB0 to
DBB3). The cause of the error is displayed in "Error status."
The "acknowledgment error" bit is only set if the acknowledgment from the PLC firmware
is accepted as error free and the tool management detects and signals an error in the
acknowledged tool transfer (for example, when the target location for tool transfer is
occupied).
Errors that are detected directly by the tool management in the NC before an
acknowledgment is sent by the PLC user program, do not result in the setting of bit 100.1.
If an error is present that prevents transfer of the acknowledgment to the tool
management (error status 1 to 7), the error is only output on the interface of the tool
management and not by the NC (no NC alarm!).
If necessary, signal such errors with a user PLC alarm in the PLC user program.
This signal remains pending statically until the error has been acknowledged (set the bit
"Reset acknowledgment error" DB4200.DBX9.0) by the user. The interface in
DB42xx.DBB0 to DBB3 is disabled if bit "acknowledgment error" is pending. Incoming
acknowledgment bits are not evaluated by the PLC firmware and are also cleared when
bit "Reset acknowledgment error" is set.
Meaning
No error
Multiple acknowledgment signals at the same time
Acknowledgment without job
Invalid transfer step number
There is no job for a position specification
The status does not permit a location change (acknowledgment status 0 is
used)
An impermissible acknowledgment status has been used
The number corresponds to the error message of the tool management in the
NCK caused by this transfer.
Commissioning Manual, 02/2012, 6FC5397-3DP40-3BA0
Turning and Milling