Siemens SINUMERIK 840 Planning Manual page 142

01.91
Signal descriptions
ST Start
The positive-going edge of the parameter initiates the comparison of tool list and ma-
gazines.
MANR Magazine number
Specification of the number for the active magazine
DBTL Data block "Exchange list/list of missing tools"
Specification of the first data block of a total of six data blocks (3 DBs for the exchan-
ge list and 3 DBs for the list of missing tools).
DBVS Data block "Leader data" (tool list)
Specification of the first data block of a total of three data blocks in the tool list. This
data block must correspond to the data block initialized via the "Load tool list" FB.
ANZ Number
The parameter specifies the maximum number of tool numbers that can be program-
med in the leader of the part program.
F Error
Parameter has a "1" signal (1 cycle) if an error has occurred.
FNR Error number
The error number is stored in DW 4 of DBVS+1 and is valid only in conjunction with
the error bit (1 signal).
VL Comparison in progress
Parameter has a "1" signal for the duration of one PLC cycle after all data of the tool
list have been processed.
ENDE End
The parameter has a "1" signal for the duration of one PLC cycle after all data of the
tool list have been processed.
ZW Status word
Memory location for internal statuses
ZWE Intermediate results
GST Initial setting
At the initial setting (F 2.1), the data blocks of the exchange list and the list of mis-
sing tools are set up and the internal status words deleted.
Program example:
With the "Exchange list/list of missing tools" FB, two lists of three data blocks each are gene-
rated:
the exchange list (DB 240, DB 241 and DB 242) and
the list of missing tools (DB 243, DB 244 and DB 245).
These lists contain the data (identification, T number) of the tools necessary for machining but
not available in the active magazine.
© Siemens AG 1991 All Rights Reserved
SINUMERIK 840/880 (PJ)
5.18 FB 198 Generate exchange list of missing tools (milling version)
6FC5 197-0AA40-1BP1
5 Configuring
5–81