Siemens SINUMERIK 808D Commissioning Manual

Commissioning Manual
192 01/2017
6.6.28
Subroutine 54 - Turret2_3_ToolDir (tool change direction)
Purpose
Subroutine 54 is used to find out the direction of searching for an adjacent tool and the pre-indexing position (this is, the
previous position of the desired tool in the direction of an adjacent tool). To find out the direction, you need to know the max.
tool number of the turret and the programmed tool number.
You can use this subroutine to control the turret to search for an adjacent tool on a turning machine or a machine centre.
The turret tool position ranges from 2 to 64.
For example:
Tool position
number
Current position
Programmed tool number
Pre-indexing position
Direction
1
7
2
1
CCW
2
7
5
6
CW
3
3
8
1
CW
4
1
4
3
CCW
5
6
8
7
CCW
Local variable definition
Inputs
Name
Type
Description
Tmax
DWORD
Possible positions of the turret
Pnum
DWORD
Programmed tool number
Tcurr
DWORD
Current tool number
Outputs
Name
Type
Description
P_INDXo DWORD Pre-indexing position: the previous tool position of the desired tool in the direction of
an adjacent tool
DIR BOOL Direction for tool change
1: for turret CW; 0: for turret CCW
Assigned global variables
None
Relevant PLC machine data
None
Example for calling subroutine 54
This subroutine is called by subroutine 52 and subroutine 53.

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English