Omron EJ1

174
Determining the Error from the Current Situation for Communications Errors
Section 7-4
Status Possible cause Countermeasure
The EJ1 does not appear in
the CX-Integrator's Compo-
Way/F network.
Connection
or
Connection port
There is no power supply to
the EJ1.
Supply power from the EDU power
supply terminal.
CX-one is not compatible with
the EJ1.
Use a version of CX-One that is com-
patible with the EJ1 (Ver.1.12 or
later.)
The Serial Communications
Board (SCB)/Unit (SCU) and
the EJ1 communications set-
tings do not match.
Correct the communications settings
for the Serial Communications Unit.
User/default settings: User settings
Serial communications mode:
Serial Gateway
Data length: 7 (bit)
Stop bits: 2 (bit)
Parity: Even (bit)
Baud rate: 38.4 (kbps)
Refer to the CX-Integrator Operation
Manual (W445).
Note The Serial Communications
Board (SCB)/Unit (SCU) must
be unit version 1.2 or later.
Refer to Unit Versions of CS/
CJ-series Serial Communica-
tions Boards/Units in the Serial
Communications Board/Unit
Operation Manual (W336) for
information on checking unit
versions.
EJ1
(RS-485)
PC
PLC
CS/CJ
SCB/SCU
EJ1
(RS-485)
PC
PLC
CS/CJ
SCB/SCU
CJ1W-CIF11
RS-422A Converter
Connection
port
Computer ---
SCU ---
EJ1
(EDU)
Port A