Siemens SINUMERIK 840D sl Commissioning Manual page 108

8 Tool Management
8.7 Moving the turret manually
8-108
The ASUB derives the tool number from the location number (actual position)
that it has received from the PLC block and forwards this to the NCK.
The toolbox contains the sources TM_REV_M_GR.AWL in German mnemon-
ics, TM_REV_M_UK.AWL in English mnemonics, and the ASUB
TM_REV_M.SPF. The PLC block and ASUB use interrupt 8 and analog input 1.
Please set the following machine data:
MD 11602 $MN_ASUP_START_MASK = H3
Ignore stop reasons for ASUB
MD 11604 $MN_ASUP_START_PRIO_LEVEL = H64
Priorities for MD 11602 $MN_ASUP_START_MASK effective
MD 20116 $MC_IGNORE_INHIBIT_ASUP, bit 7 = 1
(ASUB on interrupt 8 can always be executed.)
If another interrupt number is used, the corresponding bit must be set.
MD 10300 $MN_FASTIO_ANA_NUM_INPUTS = Total number of analog inputs
used.
MD 10320[0] $MN_FASTIO_ANA_INPUT_WEIGHT = 32767
Weighting of the analog input (index 0 corresponds to input 1)
You might have to adapt the PLC block and the ASUB. Please note the following:
S
Assign new block numbers in the symbols table.
S
Make sure that the interrupt numbers are identical when you initialize (FB4
call) and call them (FC9 call) (default setting 8).
S
If necessary, adapt the interface signals to the analog input.
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Compile and load the TM_REV_M.
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Call up the function block in the user PLC and parameterize it.
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Set interface VAR_INPUT to start and combine the VAR_OUTPUT signals
for the check–back signal of the block in your user PLC.
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In your user PLC make sure that the tool turret cannot be restarted manually
while an ASUB is being executed. This would otherwise cause the incorrect
actual turret position to be detected.
Note
Calling the TM_REV_M.SPF starts a new tool change call (change request at
turret interface in DB 73). If all is correct, setpoint position = actual position and
no further movement of the turret is triggered. However, if an incorrect actual
position is returned, this could cause the turret to swivel again. You should
therefore only permit manual movement of the turret in NCK mode JOG and
only permit the change request via the interface signal in DB 73 in NCK mode
AUTO.
SINUMERIK 840D sl Commissioning Manual CNC: ShopTurn – 11/2006 Edition
© Siemens AG 2006 All Rights Reserved
11/2006