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217
Determining the Error from the Current Situation for Communications Errors
Section 8-4
Serial Connection of
NS-series
Programmable
Terminals
No Communications Between the EJ1 and the NS-Series PT Using Serial
Connection
Status
Possible cause
Countermeasure
The Smart Active Part (SAP)
does not communicate with
the EJ1.
Connection
or
Connection port
There is no power supply to
the EJ1.
Supply power from the EDU power
supply terminal.
The SAP is not compatible
with the EJ1.
Use a SAP for the EJ1.
The SAP is not for serial con-
nection.
Use a SAP for serial Programmable
Terminal connection.
An E58-CIFQ1 USB-Serial
Conversion Cable is con-
nected to port A and the CX-
Thermo Support Software is
started.
The CX-Thermo Support Software
and Programmable Terminals cannot
be used at the same time.
Close the CX-Thermo Support Soft-
ware if using Programmable Termi-
nals.
To temporarily use the CX-Thermo
Support Software, either turn OFF
the Programmable Terminal or move
the Programmable Terminal to the
System Screen and stop Program-
mable Terminal communications.
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)
PLC
CS/CJ
SCB/SCU
NS-series
PLC
CS/CJ
SCB/SCU
NS-series
EJ
(RS-485)
CJ1W-CIF11
RS-422A Converter
Connection
port
PT
----
PLC
---
SCU
---
EJ1
(EDU)
Port A
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
Page 305: ......