Program Processing In Single Block Mode (Sbl) - Siemens SINUMERIK 802D sl Function Manual

Operating Modes, Program Operation (K1)
10.4 Program test
Selection/activation
This function is selected via the user interface in the menu "Program control". IS "Program
test selected" (V1700 0001.7) is set on selection of the function.
The PLC user program must activate the function via the IS "Activate program test" (V3200
0001.7).
Display
As a checkback for the active program test, "PRT" is displayed in the status line on the user
interface and the IS "Program test active" (V3300 0001.7) is set in the PLC.
10.4.3

Program processing in single block mode (SBL)

Functionality
The user can execute a part program block-by-block to check the individual machining steps.
Once the user decides that an executed part program block is functioning correctly, he/she
can call the next block. The program is advanced to the next part program block via IS "NC
Start" (V3200 0007.1).
When the function "single block" is activated, the part program stops after every program
block during processing. In this case the activated single block type must be observed.
Single-block type
The following different types of single block are provided:
● Single block, coarse
● Single block, fine
"Single block coarse" is the default setting after switching on.
In a series of G33 blocks single block is effective only if "dry run feedrate" is selected.
192
With this type of single block, the blocks that initiate actions (traversing motions, auxiliary
function outputs, etc.) are processed individually. If tool radius compensation is active
(G41,G42), processing stops after every intermediate block inserted by the control.
Processing is however not stopped at calculation blocks as these do not trigger actions.
With this type of single block, all blocks of the part program (even the pure computation
blocks without traversing motions) are processed sequentially by "NC Start".
CAUTION
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0