OPERATION
Series 642
82/113
Edition 2017-11-24
605593EC
5.6.4
DeviceNet® LEDs
#
Description
1
Module Status LED
2
Network Status LED
Module and Network Status LEDs at Power–Up
A LED test is to be performed at power–up. To allow a visual inspection to be performed, the following
sequence is to be followed:
•
Turn Network Status LED off.
•
Turn Module Status LED on Green for approximately 0.25 seconds.
•
Turn Module Status LED on Red for approximately 0.25 seconds.
•
Turn Module Status LED on Green.
•
Turn Network Status LED on Green for approximately 0.25 seconds.
•
Turn Network Status LED on Red for approximately 0.25 seconds.
•
Turn Network Status LED off.
5.6.4.1
Module Status LED
This bi–color (green/red) LED provides device status. It indicates whether or not the device has
power and is operating properly. Table below define the Module Status LED states.
State
LED
Description
No Power
Off
There is no power applied to the device.
Device Operational
Green
The device is operating in a normal condition.
Unrecoverable Fault
Red
The device has an unrecoverable fault; may need repla-
cing.
Device Self Testing
Flashing
Red–Green
The Device is in Self Test.
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