Omron SYSMAC FH Series User Manual page 302

2 Methods for Connecting and Communicating with External Devices
Signal
XFLG
XBUSY
XWAIT
*1. Although the BUSY signal remains ON during continuous measurement, the Sensor Controller accepts the
Command Request (EXE) signal only when the End Continuous Measurement command is performed.
*2. This will not be detected while commands received through any other protocol are processed. (Ex.: This sig-
nal remains OFF during measurement with the STEP signal in the Parallel communications.) If you use
more than one protocol and need to detect command execution, use the BUSY signal in Parallel communi-
cations.
*3. "ON" of this signal does not mean that a command is currently performed. To check whether a command is
being executed, refer to the Command Execution Completion (FLG) signal.
*4. This occurs when the measurement flow is performed in order from the top and the Output Unit is executed,
not at the moment when measurement execution was completed.
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Signal name Function
The signal indicates
Flow Com- that a command per-
mand Execu- formed during execu-
tion Comple- tion of the Fieldbus flow
tion control has been com-
pleted.
The signal indicates
that a command en-
Flow Com-
tered during the execu-
mand Busy Bit
tion of the Fieldbus flow
control is in execution.
The signal indicates
that a command en-
Flow Com- tered can be accepted
mand Wait Bit during the execution of
the Fieldbus flow con-
trol.
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
ON/OFF timing
OFF to ON
The signal switches
The signal is turned ON
from ON to OFF when
when a command per-
the Flow Command
formed has been com-
Busy (XBUSY) signal
pleted (XBUSY switch-
switches form OFF to
ed from ON to OFF)
ON during the execu-
during execution of
tion for the Fieldbus
Fieldbus flow control.
flow control.
The signal switches
The signal switches
from ON to OFF when a
from OFF to ON when a
command execution en-
command entered dur-
tered during the execu-
ing the execution for the
tion of the Fieldbus flow
Fieldbus flow control is
control has been com-
in execution.
pleted.
The signal switches This signal switches
from OFF to ON when a from ON to OFF when a
command can be input command cannot be
during the execution of entered during the exe-
the Fieldbus flow con- cution of the Fieldbus
trol. flow control .
ON to OFF