Siemens SINUMERIK 840D sl Function Manual page 1465

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.
Status = 5:
The operation is complete.
The "new" tool is in the position specified in parameters "NewToolMag", "NewToolLoc". In
this case, the specified 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 for revolvers, chain-
type magazines and disk magazines. Status 5 enables the tool management function to
adjust the current position of a magazine and to improve the search strategy for subsequent
commands. This status is permissible only in conjunction with loading, unloading, and
reloading operations and with preparations for a tool change.
The "OldToolMag" and "OldToolLoc" parameters must be parameterized with the data of a
buffer.
• Loading, reloading:
• Tool-change preparation:
• Positioning to load point:
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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 motions still to be executed are not carried out until after the tool has been changed.
If the bit in the interface in DB 71.DBX (n+0).3 "positioning to load point" is enabled, only
status 5 (not status 1) may be used for terminating the function.
Detailed description
2.12 Block descriptions
191