Siemens SINUMERIK 808D Commissioning Manual

Commissioning Manual
01/2017
193
6.6.29
Subroutine 55 - Tail_stock_T (Tailstock control program for turning machines)
Purpose
Subroutine 55 is used to control forward or backward movement of the tailstock on a turning machine.
In JOG mode, press the "Tailstock" key to move the tailstock forward or backward. Pressing "Tailstock" moves the tailstock
forward, and one more pressing moves the tailstock backward.
In AUTO mode, you can use M20 or M21 to control the forward or backward movement of the tailstock.
Local variable definition
Inputs
Name
Type
Description
nodef
BYTE
Reserved
TailCtrl_K
BOOL
Tailstock control key: press 1st time, advance; 2nd time, retract
SP_status
BOOL
Spindle status
Outputs
Name
Type
Description
TailAdv_O
BOOL
Tailstock advance output
TailRet_O
BOOL
Tailstock retract output
AdvRet_LED
BOOL
Tail advance/retract flag
Assigned global variables
SP_RUNm
BOOL
M236.0
Indicate that the spindle is running
TailAdv_m
BOOL
M229.2
Indicates that the tailstock is moving forward
TailRet_m
BOOL
M229.3
Indicates tailstock is moving backward
Relevant PLC machine data
No.
Value
Description
14512 [17].2
1
Enable tailstock in turning
0
Disable tailstock in turning
14512 [21].1
0
Set I0.0 to I2.7/Q0.0 to Q1.7 as the standard I/O wiring in the default PLC
1
Set I6.0 to I8.7/Q4.0 to Q5.7 as the standard I/O wiring in the default PLC
Example for calling subroutine 55

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English