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© Siemens AG, 2002. All rights reserved
7-138 SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition
7.7 Single-step mode (single block)
Sequence of operations
In single-step mode (single-block mode) you can execute a machining
cycle step by step.
Precondition
The required machining sequence is selected in PROGRAM mode.
Single
step
Select the soft key labeled "Single step".
Each time you press the "NC start" key one step of the machining
cycle is executed.
7.8 Block search
Function
The block search function allows the program to advance to the
desired position in the machining sequence. The search target can be
directly determined by positioning the cursor keys.
Sequence of operations
Precondition
The required machining sequence is selected in PROGRAM mode.
Select the step from which you wish to continue execution with the
cursor keys.
Block
search
Select the soft key labeled "Block search".
The same calculations are performed during block search as in
normal program operation. However, the axes do not move!
Press soft key "NC Start" twice.
• The "Block search" function is started when you press it the first
time.
• Processing starts at the selected step when you press it again.
You can cancel the search by activating the Reset key.
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