Omron SmartSlice GRT1-OD4G-1 Operation Manual page 304

LED Indicators and Error Processing
Unit LED
name
Communica- TS
tions Unit,
continued
(DeviceNet
Communica-
tions Unit indi-
cators shown)
UNIT
PWR
IO
PWR
284
Color Status
Green The Slice bus is operating
TS
normally.
--- Power is not being supplied to
TS
the Unit.
Red Slice I/O Unit configuration
error occurred.
TS
Red Backup operation failed.
TS
Restore operation failed.
(for 2 s)
Red Slice bus communications
error occurred.
When the registration table
NS
function is enabled, the actual
configuration does not match
the registered configuration.
Green The total number of I/O points
in the Slice I/O Terminals
exceeds the maximum.
Restore operation in progress Wait until the restore operation is com-
NS
Backup operation in progress Wait until the backup operation is com-
Joining nodes to network
Green Unit power supply is providing
power normally.
--- Unit power supply is not being
supplied to the Unit.
Green I/O power supply is providing
power normally.
--- I/O power supply is not being
supplied to the Unit.
Meaning
---
Check whether power is being supplied by
the Unit power supply.
Check the following items.
• Are more than 64 I/O Units connected?
• Are more than 128 bytes of I/O data being
used?
• Has the I/O configuration changed since
the I/O configuration table was registered?
Backup the data again.
Reinstall the Unit in which the data was
being restored and turn the power ON
again.
Check whether the Slice I/O Terminal's
base block is connected properly.
Correct the configuration and turn the
power ON again.
Correct the Unit configuration and number
of I/O points and turn the power ON again.
pleted.
pleted.
Wait until the nodes have been added to the
network.
---
Check whether power is being supplied by
the Unit power supply.
---
Check whether power is being supplied by
the I/O power supply.
Section 9-2
Likely cause of error