2 Description of Functions 11.92
2.1.2 Interface and program overview
Data word areas of the submagazine-specific user interface
Reference data of the source channel, DW 63 to 69
The reference data of the source channel is transformed into the T and H words for the tool
call. This applies to both the part program and to searches for tools initiated by the user, e.g.
from the PLC.
Control signals, DW 70
Control signals for error messages of the basic functions, user commands and status reports.
Control signals, DW 71
Control signals for assigned and chained magazine
Result of search, DW 72 to 75
Entry of locator and magazine number of the search key found, carried out by the basic
functions.
Current actual position, DW 76
2.2 Functional description/sequences of operations
2.2.1 Tool search
If a T and/or H function is called in the NC part program, the respective value is entered in
data words DW 63 to DW 69 of the corresponding channel DB.
In the case of SINUMERIK 840, software version 1 onwards, this function is implemented by
the basic package, in previous versions it is implemented by the tool management.
In the case of SINUMERIK 840C, software version 1 onwards, this function is implemented by
the basic package, in previous versions it is implemented out by the tool management.
In the case of SINUMERIK 880, software versions 4/5 and 6, as well as SINUMERIK 880 GA2,
this function is implemented by the basic package.
The search through the magazine is initiated by the "T word is valid" signal.
Depending on machine data 7013, bit 1 (for PLC 1, for the other PLCs accordingly, cf.
machine data), "T=ID No." or "T=Locator No.", different search types are carried out.
2–14
© Siemens AG 1991 All Rights Reserved 6FC5 197-0AA40-1BP1
SINUMERIK 840/880 (PJ)
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