Siemens SINUMERIK 828D Commissioning Manual page 284

Tool management
9.3 NC ↔ PLC user interface
DB4100...41xx Signals from tool management [r]
DBBy111 Reserved
DBWy112 Multitool: Location number (INT)
y [= 0 or 1]: TO unit 1 or TO unit 2
xx: Load location
Feedback signals: Signal description
Signal description:
● Acknowledgment OK (DB41xx.DBXy100.0):
The acknowledgment of the PLC user program (area DB40xx.DBB0 to DBB3) was
transferred without error to the tool management. This signal is reset after one PLC cycle.
● Acknowledgment error (DB41xx.DBXy100.1):
Negative feedback of acknowledgment status. There is an error in the acknowledgment of
the PLC user program (area DB40xx.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" DB40xx.DBX9.0) by the user. The interface in
DB40xx.DBB0 to DBB3 is disabled if bit "acknowledgment error" is pending. Incoming
acknowledgment bits are not evaluated by the PLC firmware and are cleared when bit
"Reset acknowledgment error" is set.
● Multitool: Location number
Multitool: Location number that the PLC user program entered as active location number
when acknowledging in the acknowledgment interface.
Error status
When an error occurs, a diagnostics number not equal to zero is displayed in DB41xx.DBBy104
with the following meaning:
Diagnostics number
0
1
2
3
270
Acknowl‐ Acknowl‐
edgment edgment
step 30 step 29
Meaning
No error
Multiple acknowledgment signals at the same time
Acknowledgment without job
Invalid transfer step number
Acknowl‐ Acknowl‐
edgment edgment
step 28 step 27
Commissioning Manual, 10/2015, 6FC5397-3DP40-5BA3
Acknowl‐ Acknowl‐
edgment edgment
step 26 step 25
CNC commissioning
Acknowl‐
edgment
step 24