Devicenet Indicator Led; Ms Led; Ns Led - ICP DAS USA I-7242D User Manual
Devicenet / modbus rtu gateway.
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Quick start user manual - 8 pages
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2.4
DeviceNet Indicator LED
The I-7242D includes three single-color LED displays to indicate the
status of module, network and I/O device. They are MS LED (it is red), NS LED
(it is green), and IO LED (it is red). The Indicators assist maintenance
personnel in quickly identifying a problem unit. The LED test is to be performed
at power–up. When the DeviceNet communication events occur, these
indicators will be triggered to glitter with different conditions.
2.4.1
MS LED
This LED provides device status and indicates whether or not the device
is operating properly. Table 2-6 shows the conditions of MS status. Therefore,
when the device is operated normally, the MS-LED must be turned off.
Condition
Status
Red
Critical fault
Flashing red
Non-critical fault
2.4.2
NS LED
This LED indicates the status of the communication link for the device.
Table 2-7 shows the conditions of NS status. Therefore, when the device is
correctly communicating in the network, the NS-LED is normally turned on.
Condition
Status
Off
Off line
Flashing green On line
Init solid green Link failed
Solid green
On line, communicating
I-7242D DeviceNet/Modbus RTU Gateway User's Manual, July 2006, Version 1.1
Table 2-6 MS led conditions
Description
Device has unrecoverable fault
Device
recover:
Reconfigure device
Reset device
Perform error recovery
Table 2-7 NS led conditions
Description
DeviceNet is off line
DeviceNet
communicating
The device has detected an error that
has
communicating
example, detected a duplicate node
address or network configuration error
DeviceNet is on communication
I-7242D user manual
has
recoverable
is
on
line,
rendered
it
incapable
on
the
fault;
to
but
not
of
link;
for
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