Siemens SINUMERIK 840Di Function Manual page 1097

Status = 103:
The "new" tool can be inserted.
This status is only permissible in conjunction with the preparations for a tool change if the
PLC may reject the new tool (MD: MC_TOOL_MANAGEMENT_MASK, bit 4). The tool
positions have remained unchanged. This status is required to continue the forward motion
in the NCK (otherwise processing is stopped).
References:
/FBW/ escription of Functions, 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 104 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").
Status definition
A general rule for the acknowledgment status is that the state information 1 to 7 leads to the
termination of the command. If FC 8 receives one of the statuses, the "Interface active bit" of
the interface specified in FC 8 is reset to "0" (see also interface lists DB 71 to DB 73), thus
completing the operation. The response if different in the case of status information 103 to
105. When the FC 8 receives one of these items of status information, the "Interface active
bit" of this interface remains at "1". Further processing is required by the user program in the
PLC (e.g., continuation of magazine positioning). This item of status information is generally
used to transfer changes in position of one or both tools while the operation is still in
progress.
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Detailed description
2.12 Block descriptions
2-185