Siemens SINUMERIK 828D Function Manual page 990

P3: Basic PLC Program for SINUMERIK 840D sl
13.13 Block descriptions
The brake test is divided into the following steps:
Brake test sequence
Step
Start brake test
Close brake
Output traversing command
Issue test travel command
Wait for the holding time
Deselect brake test /
open brake
Output test ok
Declaration of the function
Function_BLOCK FB 11
VAR_INPUT
Start
Ackn
Bclosed
Axis
TimerNo
TV_BTactiv
TV_Bclose
TV_FeedCommand
TV_FXSreached
TV_FXShold
END_VAR
VAR_OUTPUT
CloseBrake : BOOL ;
MoveAxis : BOOL ;
Done : BOOL ;
Error : BOOL ;
State : BYTE ;
END_VAR
990
Expected feedback
DBX 71.0 = 1
Bclosed = 1
DBX 64.6 Or DBX 64.7
DBX 62.5 = 1
DBX 62.5 = 1
DBX 71.0 = 0
: BOOL ; //Start of brake test
: BOOL ; //Acknowledge error
: BOOL ; //Brake closed input (single channel - PLC)
: INT; //Testing axis no.
: TIMER ; //Timer from user
: S5TIME ; //TimeValue -> brake test active
: S5TIM; //TimeValue -> close brake
: S5TIME ; //TimeValue -> force FeedCommand
: S5TIME ; //TimeValue -> fixed stop reached
: S5TIME ; //TimeValue -> test brake
//Signal close brake
//Do move axis
//Error byte
Monitoring time value
TV_BTactiv
TV_Bclose
TV_FeedCommand
TV_FXSreached
TV_FXShold
TV_BTactiv
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions