Transfer-Step And Acknowledgment-Step Tables - Siemens SINUMERIK 828D Commissioning Manual

Tool management
9.3 NC ↔ PLC user interface
DB4300 ... 43xx Signals from tool management [r]
DBWy144
DBWy146
DBWy148
y [= 0 or 1]: TO unit 1 or TO unit 2
xx: Tool holder
9.3.3

Transfer-step and acknowledgment-step tables

Configurable step tables
There are configurable tables available in the data blocks TM_CTS (DB9900), TM_VTS
(DB9901) and TM_ACK (DB9902), which are used to describe the tool movement sequences.
Interface signal
DB9900
DB9901
DB9902
The data blocks DB40xx, 41xx, 42xx and 43xx are system blocks and are created automatically
by the control.
The data blocks DB9900, DB9901 and DB9902 are made available by the Programming Tool
under Libraries / Special data blocks. The blocks are not yet filled with the necessary data.
The user must copy them into the PLC project and edit them.
Transfer-step tables
The individual tool movements are defined as transfer steps – tool from magazine location x/
y to magazine location m/n. Acknowledgment steps can be defined with these transfer steps.
DB9900 contains permanently configured transfer steps (constant transfer-step table).
DB9901 can be changed by the PLC user program; for example, for acknowledging
intermediate steps such as magazine locations for tool change preparation (variable transfer
step table).
DB9900
Byte
DBW0
DBW2
DBW4
DBW6
DBW8
DBW10
DBW12
DBW14
280
Multitool: Tool distance (FLOAT)
Multitool: Location number (INT)
Name
TM_CTS
TM_VTS
TM_ACK
Constant transfer-step table [r]
Bit 7 Bit 6 Bit 5
Transfer step 1 Source magazine number (INT)
Transfer step 1 Source location number (INT)
Transfer step 1 Target magazine number (INT)
Transfer step 1 Target location number (INT)
Transfer step 2 Source magazine number (INT)
Transfer step 2 Source location number (INT)
Transfer step 2 Target magazine number (INT)
Transfer step 2 Target location number (INT)
Meaning
Constant transfer-step table (configurable)
Variable transfer-step table (can be configured and written
to from the PLC user program)
Acknowledgment-step table (configurable)
Bit 4 Bit 3
Commissioning Manual, 10/2015, 6FC5397-3DP40-5BA3
Bit 2 Bit 1 Bit 0
CNC commissioning