122
Indicators and Error Processing
Section 8-1
8-1
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 Unit.
Supply communications power from
the DeviceNet Communications con-
nector.
The power voltage is
not within the permitted
range.
Use a power supply voltage within the
permitted range.
The Unit is faulty.
Replace the Unit.
MS: Flashing green
NS: No change
The Temperature Con-
troller connection con-
figuration is not
registered.
Use the Configurator to register or
download the Temperature Controller
connection configuration (refer to
page 44). Alternatively, turn ON pin 1
of the rear panel DIP switch, and set
the highest unit number of the con-
nected Temperature Controllers on
the rear panel rotary switch.
MS: Flashing red
NS: No change
A sum error has
occurred in the parame-
ters registered in
EEPROM.
Use the Configurator’s device monitor
to check the parameters with the sum
error or logic error, and reset the
parameters using the Configurator.
A logic error has
occurred in the parame-
ters registered in
EEPROM.
A EEPROM hardware
error has occurred.
Replace the Unit.
MS: ON red
NS: OFF
The Unit is faulty
Replace the Unit.
MS: ON green
NS: Flashing green
Waiting to connect to
DeviceNet communica-
tions.
Check the following items and restart
the Unit.
• 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 Unit is faulty.
Replace the Unit.
MS: ON green
NS: ON red
The DeviceNet is in Bus
Off status.
Check the following items and restart
the Unit.
• 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 Unit is faulty.
Replace the Unit.
Содержание E5ZN-DRT
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Страница 83: ...68 Ladder Programming Examples Section 4 5 ...
Страница 123: ...108 Sending Explicit Messages Section 6 5 ...
Страница 135: ...120 Message Communications Characteristics Section 7 2 ...
Страница 157: ...142 Index Unit status 57 85 user set allocations 43 61 V variable types C0 51 C1 51 C3 52 ...
Страница 159: ...144 Revision History ...
Страница 161: ...E5ZN DeviceNet Communications Unit Cat No H119 E1 01 OPERATION MANUAL ...
Страница 162: ...Authorized Distributor Cat No H119 E1 01 Note Specifications subject to change without notice Printed in Japan ...