Ms And Ns Indicators - Omron E5AR User Manual

Part Names and Functions
3-1-3

MS and NS Indicators

Indicator Name
MS Module status
NS Network status
Normal Indicator Display
The indicators show the status of the Digital Controller and the DeviceNet
Network.
Color Status
Green
MS
Red
MS
MS
OFF
MS
Green
NS
NS
Red
NS
NS
OFF
NS
Lit
The MS and NS indicators are both lit green when the status of the Controller
and the Network are normal.
Meaning (main errors)
The Controller is normal.
Fatal error
• Controller error
• Watchdog timer error (DeviceNet communications)
Non-fatal error
• Unit error
• Unit changed
• Display Unit error
• Non-volatile memory error
No power is being supplied.
• DeviceNet communications power is not being sup-
plied.
• Power is not being supplied to the Controller.
• The Controller is being reset.
• Waiting for initialization to start.
Online/communications established (normal network
status)
Online/communications not established (waiting for
connection to be established with the master)
Fatal communications error (The Controller has
detected an error that does not allow communications
with the network.)
• Node address duplication error
• Bus OFF error detected
Non-fatal communications error
• Communications timeout
Offline or power supply is OFF
• Waiting for completion of the master's node address
duplication check.
• DeviceNet communications power is not being sup-
plied.
Flashing
Not lit
Section 3-1
3-3