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7-2
Indicators and Error Processing
Section 7-1
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7-1
Indicators and Error Processing
The following table lists the indicator status when errors occur, the probable
causes and processing.
Indicator status
Probable cause
Remedy
MS: OFF
NS: OFF
The power is not being
supplied to the Control-
ler.
Supply communications power from
the DeviceNet connector.
The power voltage is
not within the permitted
range.
Use a power supply voltage within the
permitted range.
The Controller is faulty.
Replace the Controller.
MS: Flashing red
NS: No change
A checksum error has
occurred in the parame-
ters registered in
EEPROM.
Repairs are required if this error per-
sists even if the parameters are reset.
Contact your nearest OMRON repre-
sentative.
A EEPROM hardware
error has occurred.
MS: ON red
NS: OFF
The Digital Controller is
faulty
Repairs are required. Contact your
nearest OMRON representative.
MS: ON green
NS: Flashing green
Waiting to connect to
DeviceNet communica-
tions.
Check the following items and restart
the Controller.
• Are lengths of cables (trunk and
branch lines) correct?
• Are cables short-circuited, broken,
or loose?
• Are cables wired correctly?
• Is terminating resistance connected
to both ends of the trunk line only?
• Is noise interference excessive?
• Is the power to the master ON?
The Digital Controller is
faulty.
Repairs are required. Contact your
nearest OMRON representative.
MS: ON green
NS: ON red
The DeviceNet is in Bus
OFF status.
Check the following items and restart
the Controller.
• Are lengths of cables (trunk and
branch lines) correct?
• Are cables short-circuited, broken,
or loose?
• Is terminating resistance connected
to both ends of the trunk line only?
• Is noise interference excessive?
Node addresses dupli-
cated.
Reset node addresses correctly.
The Controller is faulty.
Repairs are required. Contact your
nearest OMRON representative.
MS: ON green
NS: Flashing red
A communications time-
out has occurred.
Check the following items and restart
the Controller.
• Are lengths of cables (trunk and
branch lines) correct?
• Are cables short-circuited, broken,
or loose?
• Is terminating resistance connected
to both ends of the trunk line only?
• Is noise interference excessive?
The Digital Controller is
faulty.
Repairs are required. Contact your
nearest OMRON representative.
Содержание E5AR
Страница 2: ...E5AR ER Digital Controller DeviceNet Communications User s Manual Produced February 2004...
Страница 3: ...iv...
Страница 29: ...2 6 Functions Supported Only by the E5AR ER DRT Section 2 2 Operating Procedures...
Страница 43: ...3 14 How to Use the Terminals Section 3 2 Parts Installa tion and Wiring Circuit COM 12 V 4 7 K K...
Страница 79: ...6 8 Message Communications Performance Section 6 2 Communications Performance...
Страница 91: ...B 6 Mounted Objects Appendix B Appendix B...
Страница 95: ...C 4 DeviceNet Connection Hardware Appendix C Appendix C...
Страница 97: ...G 2 Glossary...
Страница 100: ...Index I 3 W wiring 3 10 precautions 3 9 write mode 4 12...
Страница 101: ...I 4 Index...