Siemens SINUMERIK 828D Function Manual page 1013

• Loading, reloading:
On loading or reloading, a location for the tool is already reserved in the NCK. The machine operator must
then insert the tool at the target location. Note: The location reservation is canceled when the control system
is switched on again.
• Tool-change preparation:
Tool motions still to be executed are not carried out until after the tool has been changed.
• Positioning to load point:
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 = 6: The WZV job has been completed.
This status has the same function as status 1, but, in addition, a reservation of the source location is carried out.
This status is only permitted when reloading. The command is ended and the source location of the tool is
reserved if the target location is in a buffer magazine.
Status = 7: Initiate repetition of the command "Prepare Tool".
This status is only admissible in conjunction with the "Change tool" command. This status is intended for use
when the "new" tool has changed its position (e.g. via an asynchronous command of the "new" tool). After
"Ready = 1" has been provided by FC 8, the "Prepare Change" command is repeated automatically with the
same tool. For the automatic repetition, a new tool search is carried out. The positions in parameters
"NewToolMag", "NewToolLoc", "OldToolMag", and "OldToolLoc" correspond to the original tool positions.
Status = 103: The "new" tool can be inserted.
This status is permitted only in the tool change preparation, when the PLC may reject the new tool (e.g. in case of
MD20310 $MC_TOOL_MANAGEMENT_MASK, bit 4=1 for the possibility, request changed parameter from PLC
once again). The tool positions have remained unchanged. This status is thus necessary, when the processing is
to be continued in the NCK without an unnecessary stop.
References:
Function Manual Tool Management
Status = 104: The "new" tool is in the position specified in parameters "NewToolMag", "NewToolLoc".
This status is only permissible if the tool is still in the magazine in the same location. The "old" tool is in the
position (buffer) specified in parameters "OldToolMag", "OldToolLoc". In this case, however, the new tool is not
really in this position, but is still in the same magazine location. However, this magazine location has been moved
to the position set in the parameters (e.g. tool change position). This status may be used only in conjunction with
revolvers, chain­type magazines and disk magazines for the "Tool change preparation" phase. Status enables
the tool management to adjust the current position of a magazine and to improve the search strategy for
subsequent commands.
Status = 105: The specified buffer has been reached by all tools involved
(standard case if the operation has not yet been completed).
The tools are in the specified tool positions (parameters "NewToolMag", "NewToolLoc", "OldToolMag",
"OldToolLoc").
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
1013