Siemens SINUMERIK 828D Function Manual page 1170

P4: PLC for SINUMERIK 828D
14.6 Function interface
Note
If none of bits 0 to 4 are set for an alarm/message in the machine data, then this defines that
it involves a so-called "display message" that has no effect on the system. This especially
indicates that also bits 6 and 7 of the corresponding machine data are evaluated.
Active alarm responses and clear criteria of the user alarms
The present active alarm responses (i.e. the actual responses) and the active clear criteria can be globally read-
out of the interface.
DB1600
Data block
Byte Bit 7
DBB 2000 POWER
ON
DBB 2001
DBB 2002
DBB 2003
One bit is set if for at least one active alarm the corresponding response or the corresponding clear criterion is
configured. It is cleared, if this response/clear criterion is no longer configured for any of the alarms present.
Acknowledgement interface of the user alarms
Precondition
Precondition to acknowledge a user alarm is that the corresponding activation bit is reset.
• Messages with clear criterion {0,0} then disappear automatically from the display.
• Alarms with clear criterion {0,1} are cleared by the acknowledgement bit
• Alarms with clear criterion {1,0} are not influenced when the acknowledgement bit is set and can only be
cleared by a power on.
DB1600
Data block
Byte Bit 7
DBB 3000
DBB 3001
DBB 3002
DBB 3003
1170
Active alarm response [r]
Bit 6 Bit 5
Interrupt
with
DB1600
DBX3000.0
Alarm acknowledgement [r/w]
Bit 6 Bit 5
Bit 4 Bit 3
PLC STOP EMERGEN
CY STOP
Bit 4 Bit 3
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Bit 2 Bit 1
Feedrate Read-in
disable for disable
all axes
Ack
.
Bit 2 Bit 1
Basic Functions
Bit 0
NC start
disable
Bit 0
Ack