Siemens SINUMERIK 840D sl, Function Manual

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Detailed description
2.12 Block descriptions
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
193
Status list
Status = 1:
The WZV operation is completed (loading/unloading/reloading, prepare change, change).
The parameters "NewToolMag", "NewToolLoc", "OldToolMag", "OldToolLoc" of the FC 8
block are to be parameterized to the actual positions of the tools involved. Except in the case
of preparing change these are normally the specified target position of the tools of the
associated WZV interface, see also "Explanations of the formal parameters".
1.
In the case of loading/unloading/reloading, the tool has arrived at the required target
address. If the bit in the interface in DB 71.DBX (n+0).3 "position at loading point" is
enabled, status 1 cannot be used for the function termination. Status 5 must be used for
correct termination.
2. In the case of "Prepare change", the new tool is now available. The tool may, for
example, be positioned in a buffer (gripper). In some cases, the target (magazine,
location) of the old tool has been moved to the toolchange position after placement of the
new tool in a buffer. However, the old tool still remains in the spindle. The preparations
for a tool change are thus complete. After this acknowledgment, the "Change" command
can be received. The positions in parameters "NewToolMag", "NewToolLoc",
"OldToolMag" and "OldToolLoc" correspond to the current tool positions.
3. In the case of "Change" (spindle or revolver), the tools addressed in the interface have
now reached the required target addresses.
The tool-change operation is thus completed.
Status = 2:
The "new" tool cannot be made available.
This status is only admissible in conjunction with the "Prepare Change" command. When this
status is applied, the PLC must be prevented from making a change with the proposed tool.
The proposed (new) tool is disabled by the tool management function in the NCK. A new
command is then output by the tool management with a duplo tool. The positions in
parameters "NewToolMag", "NewToolLoc", "OldToolMag", and "OldToolLoc" correspond to
the original tool positions.
Status = 3:
An error has occurred.
The tool positions must not have been changed. Any changes to the magazine positions
which have taken place in the meantime must be notified beforehand, for example, with
status = 105 via FC 8 transfer block Only then will the tool positions be taken into account by
the tool management function.
Status = 4:
It would be better to position the "old" tool in the magazine position specified in parameters
"OldToolMag" and "OldToolLoc".
This status is permissible only in conjunction with preparation for tool change (change into
spindle). After this status has been transferred to the tool management in the NCK, the tool
management tries to consider the specified magazine position in the next command. But this
is done only when this position is free. Parameters "NewToolMag" and "NewToolLoc" are not
taken into account.