I/O Signals - Omron FH series User Manual

I/O Signals

The following tables list the signals that are used to control I/O for parallel communications.
Input Signals
Signal
STEP
DSA (Used only
for handshaking
output control.)
DI0 to DI7
DILINE0 to
DILINE2
(FH-1000 series/
FH-3000 series
Sensor Control-
ler only)
ENC (Phase A,
Phase B, or
Phase Z)
320
Parallel Communications
Signal name Function
Input measurement triggers
from external devices, such
as optic switches. Mea-
surement is performed after
Measurement synchronizing with the
Trigger Input STEP signal turning ON
(OFF to ON). A STEP sig-
nal filter (filter initial set
value: 100 μs) is set in
STEP input.
This signal is to request to
externally output that mea-
surement data from the
flow which was executed by
the PLC at handshake time.
Data Output
If this signal is ON when an
Request signal
Output Unit (Parallel Data
Output Unit) in the mea-
surement flow is executed,
the Vision Sensor will out-
put the data from the pro-
cessing item.
Command Input Inputs commands from the
signals external device.
Specify the line number
when inputting a command
Command Input
from an external device.
Line Specifica-
You can use these signals
tion signals
in Multi-line Random Trig-
ger Mode.
This is the encoder input
signal.
Encoder Input
This signal is used only
(Phase A, Phase
when [Use Encoder trig-
B, or Phase Z)
ger] is set in the system
settings.
ON/OFF timing
OFF to ON
Turn OFF the signal from
Turn ON the signal to the PLC when the FH/
make a measurement. FZ5 turns ON the BUSY
signal.
Turn ON the signal (from
the PLC) when you wish
to output the data exter-
nally.
Turn the DSA signal ON
when the STEP signal is
turned ON.
Turn OFF the signal (from
If more than one output
the PLC) when the FH/
item is set in a single Out-
FZ5 turns ON the Result
put Unit, or if more than
Completion (GATE) sig-
one Output Unit has been
nal.
set in the measurement
flow, turn the DSA signal
ON again when the GATE
signal turns OFF for the
first data output.
Reference: Time
Charts (p.336)
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Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)
ON to OFF
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