Siemens SINUMERIK 840DE sl Commissioning Manual page 94

8 Tool Management
8.4 Startup in the PLC
DB 72
DBX 0.0 – 0.15
Data block
Edge evaluation:
Signal state 1
Signal state 0
DB 72
DBB(n+0)
Data block
Edge evaluation:
Description
DB 72
DBB(n+2)
Data block
Edge evaluation:
Description
DB 72
DBB(n+3)
Data block
Edge evaluation:
Description
8-94
Note
DBB (n+1) to DBW (n+46) are updated only by a T selection.
For a description of data blocks DB71 and DB74, please see
References: /FBW/, Description of Functions Tool Management
Active status of interface 1–16
Signal(s)
Signal(s) updated: Conditional
Associated interface has a valid block, a tool change request has been initiated.
Operation for this interface has ended.
Tool change information
Signal(s)
Signal(s) updated: Conditional
Bit 0: Obligatory change
Bit 1: Change tool (initiated by M06)
Bit 2: Prepare change
Bit 3: "T 0" is programmed
Bit 4: Old tool in buffer number (n+42)
Bit 5: Attach manual tool
Bit 6: Detach manual tool
Bit 7: Reserved
Note
The bits in DBB (n+0) (prepare change, change tool,...) are not reset by the
system. They are up–to–date only if the appropriate interface bit in DBB0 is set
to ''1''. However, the bits can be reset by the user if necessary.
Assigned channel
Signal(s)
Signal(s) updated: Conditional
Channel no. to which active interface applies
Tool management no.
Signal(s)
Signal(s) updated: Conditional
Associated tool management number
SINUMERIK 840D sl Commissioning Manual CNC: ShopMill – 11/2006 Edition
Signal(s) valid from SW: 2
Signal(s) valid from SW: 5
Signal(s) valid as of software version:
2
Signal(s) valid from SW: 2
© Siemens AG 2006 All Rights Reserved
11/2006