01.91
5 Configuring
5.13 FB 139 Data distributor
Loading of magazine locations that are already occupied
The loading of magazine locations that are already occupied is permissible only if the T and
Duplo No. of the source and target data are identical. If this is the case, there are two
alternatives:
a) The reference list is preset correctly.
If the reference list is preset correctly, the D No. in the reference list are regarded as data
target. This means that no new D No. are assigned. The loading procedure is aborted with
an error message if the reference list is not preset correctly.
b) The reference list is empty.
If the reference list is empty, one free D No. is determined and assigned for each cutting
edge and/or compensation. The setup data are generated automatically and assigned to
the tool.
If the magazine location is disabled or reserved for another tool, the loading process is aborted
with an error message.
MD bit for loading with operator guidance = 1
For loading with operator guidance, the loading line is basically defined as the target (DW 2 of
the magazine table). Any preset magazine and/or locator No. is ignored.
Loading with operator guidance is possible from the following sources:
•
Computers via machine data bit MD 7011.6,
•
Code carriers via machine data bit MD 7011.5,
•
Tapes via machine data bit MD 7011.4.
Manipulation of the identification bits if source = computer and tape
•
Source = computer
With package 5 "Computer link", the identifications remain basically unchanged during
transfer from the input buffer of the computer link to DW 32 and DW 33 of a free buffer of
the standard tool management (SST: WZV) or during transfer in the reverse direction.
Nevertheless, a distinction is made between the following two alternatives on the tool
management side:
–
The identifications are coded in ASCII
(MD bit 7001.7 = DB 64 D0.7 = 0);
–
The identifications are coded bitwise
(MD bit 7001.7 = DB 64 D0.7 = 1).
•
Source = Tape
When loading via tape, the identifications are always transferred in bit-coded form into the
data words DW 32 and DW 33 of the dynamic buffer. In this case, either eight bits (low
byte DB 152 = standard) or 2
*
16 bits (via user function blocks FB 150 and FB 151) can
be assigned:
–
8 bit assignment = standard
(MD bits 7011.7 = 0),
–
2
*
16 bit assignment
(MD bits 7011.7 = 1).
a) The identifications are coded in ASCII
–
For source = computer: MD bit 7001.7 = DB 64 D0.7 = 0
© Siemens AG 1991 All Rights Reserved 6FC5 197-0AA40-1BP1
5–47
SINUMERIK 840/880 (PJ)
