Configuring Acknowledgment Steps - Siemens SINUMERIK 828D Commissioning Manual

Tool management
9.4 PLC Program Blocks
9.4.5

Configuring acknowledgment steps

Configuring the acknowledgment steps
The PLC 31 provides acknowledgment steps to acknowledge tool and magazine
movements. These are activated via the corresponding bits on the user interface. The data
of these acknowledgment steps (with the exception of special case acknowledgment step 9:
total acknowledgment) are stored in acknowledgment step table TM_ACK (DB9902). The
transfer steps (number of the transfer step from the transfer step table) for the old and new
tool and an acknowledgment status are combined in one acknowledgment status.
It is important to include an acknowledgment step with the status 3 in this table, so that
potential errors can be reset. The numbers for the transfer in this acknowledgment step are
0.
Special meaning of transfer step 0
Only the transfer steps assigned to the acknowledgment step are executed. If only one or no
transfer step is assigned, no tool transfer will be carried out for the tool with transfer step = 0.
The tool is not available or remains at its original location.
Example: Acknowledgment step table
Acknowledg
ment step
1
2
Example as a complete step
Acknowledg
ment step
1
2
Acknowledgment is given by setting the corresponding bits in the user interface:
● DB40xx for loading/unloading / relocating or positioning the magazine
● DB42xx for "prepare tool change" and "execute tool change"
290
Address Name
DB9902
0.0 TsNewT_1
1.0 TsOldT_1
2.0 State_1
4.0 TsNewT_2
5.0 TsOldT_2
6.0 State_2
Transfer step
New tool old tool
0 0
2 0
Start value Comment
0 Transfer step number of the new tool
0 Transfer step number of the old tool
3 Status to NCK
1 Transfer step number of the new tool
0 Transfer step number of the old tool
1 Status to NCK
Acknowledg Comment
ment status
3 "Cancel order" command.
1 Prepare Tool: The tool is taken from the
magazine (changing point) and placed
into gripper 1.
Commissioning Manual, 02/2012, 6FC5397-3DP40-3BA0
Turning and Milling