Omron EJ1 User Manual

173
Determining the Error from the Current Situation for Communications Errors
Section 7-4
Status Possible cause Countermeasure
Cannot connect online
Connection
Connection port
K3SC-10: Interface Converter
There is no power supply to
the EJ1.
Supply power from the EDU power
supply terminal.
There is no power supply to
the Interface Converter.
Supply power to the Interface Con-
verter.
The EST2-2C-MV3 CX-
Thermo Support Software
settings are incorrect.
Correct the communications settings.
Serial port: COM (See note.)
Baud rate: 38.4 (kbps)
Data length: 7 (bit)
Stop bit: 2 (bit)
Parity: Even (bit)
Unit number: (See note.)
Note Match the serial port and unit
number settings to the system
used.
The Interface Converter com-
munications conditions are
different from the EJ1 commu-
nications settings.
Refer to the Interface Converter man-
ual and match the communications
conditions to the EJ1 communica-
tions settings.
The Interface Converter con-
nection is incorrect.
Refer to the computer, Interface Con-
verter, and EJ1 manuals and wire the
connection correctly.
There is no device on the
communications path with the
specified unit number.
Specify a unit number in the commu-
nications settings for a device on the
communications path.
There is a device on the com-
munications path with the
same unit number.
Change the unit number in the com-
munications settings so that the unit
numbers are not duplicated.
Cannot connect online
Connection
Connection port
The EJ1 is connected to port
C on the HFU.
The EST2-2C-MV3 CX-Thermo Sup-
port Software cannot be connected to
the HFU.
Connect it to port A on the EDU.
K3SC-10
PC
EJ1
(RS-232C)
(RS-485)
Connection
port
Computer Serial port
EJ1
(EDU)
Port A
PC
EJ1
(RS-232C/
RS-485)
Connection
port
Computer ---
EJ1
(HFU)
Port C

Omron EJ1 Specifications

General

Brand	Omron
Model	EJ1
Category	Temperature Controller
Language	English