Siemens SINUMERIK 840Di Function Manual page 18

Detailed Description
2.1 NC/PLC interface signals
DB19.DBX 0.3 / 0.4 (delete cancel alarms / delete recall alarms)
Request to delete all currently pending alarms with Cancel or Recall delete criterion. Deletion
of the alarms is acknowledged via the following interface signals:
• DB19, DBX20.3 (cancel alarm deleted)
• DB19, DBX20.4 (recall alarm deleted)
DB19, DBX0.7 (actual value in WCS, 0=MCS)
Switching over of actual-value display between machine and workpiece coordinate system:
• DB19, DBX0.7 = 0: Machine coordinate system (MCS)
• DB19, DBX0.7 = 1: Workpiece coordinate system (WCS)
DB19, DBB12 (control of V24 interface) (HMI Embedded only)
Job interface to control RS-232C. The jobs refer to the user control files stored in DB19,
DBB14 and DB19, DBB15 (see below).
DB19, DBB13 (control of file transfer via hard disk) (HMI Advanced only)
Job byte to control file transfer via hard disk. The jobs refer to the user control file stored in
DB19, DBB16 and DB19, DBB17.
DB19, DBB14 (control of V24 interface) (HMI Embedded only)
Description byte to specify the PLC index of the axis, channel or TO number for the standard
control file. The standard control file is processed in accordance with the job stored in DB19,
DBB12.
DB19, DBB15 (control of V24 interface) (HMI Embedded only)
Description byte to specify the line in the standard/user control file in which the file to be
transferred is stored.
DB19, DBB16 (control of file transfer via hard disk) (HMI Advanced only)
Control byte for file transfer via hard disk to define the index for the control file (job list). This
file is processed in accordance with the job stored in DB19, DBB13.
DB19, DBB17 (control of file transfer via hard disk) (HMI Advanced only)
Control byte for file transfer via hard disk to indicate the line in the user control file in which
the control file to be transferred is stored.
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Various NC/PLC Interface Signals and Functions (A2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0