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CHAPTER2 PROFIBUS Unit
(2) When a short execution time command runs and ends normally
(In the following cases, when the dedicated command input is turned OFF, the com-
mand has already ended, and END has turned ON.)
• When running a movement command (ABS-PT, INC-PT) with an extremely short
movement distance.
• When RESET was run.
• When running steps of a command having an extremely short processing time such
as L or DO statements.
Dedicated
command
BUSY
END
30ms or less 1ms or less
30ms or less
(1)
At the rise of the dedicated command input, the END signal turns off and the
BUSY signal turns on.
(2)
Turns off the dedicated command input after the BUSY signal turns on.
(3)
Wait until the BUSY signal turns off. (The BUSY signal immediately turns off
since the command execution time is short.)
(4)
The END signal should be on when the BUSY signal turns off, indicating that
the command has ended normally.
The "bit 7 END output sequence setting at command execution completion" in the
System mode selection parameter (single-axis controllers: PRM34, dual-axis con-
trollers: PRM20) can be changed so that the END signal turns ON when the dedi-
cated command input turns OFF.
M E M O
M E M O
The "bit 7 END output sequence setting at command execution completion" in the
System mode selection parameter (single-axis controllers: PRM34, dual-axis con-
trollers: PRM20) is supported by the following controller versions:
ERCX, SRCX : Ver. 13.74 or later
DRCX
: Ver. 18.74 or later
SRCP, SRCD
: Ver. 24.32 or later
SRCP30
: Ver. 24.32H or later
