DA
DB
DG
SLD
FG
Master Unit
DA
DB
DG
SLD
FG
Remote Unit
DA
DB
DG
SLD
FG
Remote Unit
TERMINATOR TERMINATOR
blue
white
yellow
Be sure to connect the terminating resistor included in the product package to the unit at both ends of transmission line.
Or turn the terminating resistor SW ON for models with the resistor incorporated.
The terminator must be connected across DA and DB.
The Master Unit can be located other than at the extreme ends of transmission line.
■ MASTER CONNECTION
PWR
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
■ STATUS INDICATOR LED
OFF = OFF, ON = ON, BL = Blinking
---- = Inconceivable in normal operations (e.g. LED failure)
■ DISCRETE I/O STATUS INDICATOR LED
Discrete I/O modules, including those for extensions, have LED indicators showing I/O signal status.
Totalized pulse modules have LED indicators showing input signal status.
Contact ON : LED ON
Contact OFF : LED OFF
RUN
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ERR
BL
BL
BL
BL
BL
OFF
OFF
OFF
OFF
BL
BL
BL
BL
OFF
OFF
OFF
OFF
ON
OFF
SD
BL
BL
BL
OFF
OFF
BL
BL
OFF
OFF
BL
BL
OFF
OFF
BL
BL
OFF
OFF
OFF
OFF
RD
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON/OFF
OFF
STATUS
Communicates normally with occasional CRC errors due to noise interference.
Communicates normally but the Baud Rate and/or Station Address switches failed.
ERR LED flashes approximately in 0.5 second intervals.
----
CRC error found in the received data. Unable to respond.
----
Normal communication
----
Unable to receive data addressed to the station.
----
Performs the interval-timed responses but CRC error found in receiving the refresh
data.
----
CRC error found in the data addressed to the station.
----
Link is not started.
----
No data addressed to the station. Or unable to receive data addressed to the station
due to noise interference. (Missing parts of the data sent from the master)
Unable to receive data due to wire breakdown
Faulty Baud Rate and/or Station Address setting
Power input removed. Or power supply failure.
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