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7 AUXILIARY AND APPLIED FUNCTIONS
7.9 Single Block Operation
This function is used to execute the program operation block-by-block and check the
operation of Motion program.
The single block is available in two modes: a mode where a single block is specified
before a program start, and a mode where a single block is executed at any point
during program execution.
The single block operation can be executed at any point during operation by turning
the single block mode signal (M4408) ON during continuous operation, and by turning
the single block start signal (M4409) from OFF to ON.
[Control details]
(1) Single block signal devices
The single block related signals are shown below.
Signal Name Device No. Signal direction
Single block processing
M4009 Monitor device
Single block mode
M4408
Single block start
M4409
Command device
Single block processing signal (M4009)
Single block mode signal (M4408)
Single block start signal (M4409)
ON
OFF
OFF
OFF
ON
ON
These signals are valid for all program operations executed concurrently.
(a) Single block in progress (M4009)
This signal indicates that the single block function can be executed. A single
block is executed when the single block processing signal is ON. When the
single block processing is OFF, make a Motion program (axis designation
program) start or turn single block start from OFF to ON to perform
continuous operation. When the single block mode signal (M4408) turns ON,
the single block processing signal turns ON.
When the single block start signal (M4409) turns from OFF to ON after the
single block mode signal (M4408) turns OFF, this signal turns OFF.