Display Of The Status Leds In The Event Of A Bus Error; Status Of The Device Status Led "Modules; Control Head Type - Burkert 8681 Operating Instructions Manual

Control Head Type 8681

DeviceNet-Design
Online parameterization of the device
Devices can also be parameterized online. In doing so, you can also select whether only individual parameters
(single) or all parameters (all) of a group are read from the device (upload) or are loaded into the device
(download).
It is also possible to transfer individual parameters or all parameters of a group cyclically in monitor mode. This
may be helpful particularly for start-up purposes.
12.13. Display of the status LEDs in the event of a bus
error
Bus errors are also indicated on the central three-colored status display - see Chapter "17.2. Blinking
pattern & fault signaling".
Fig. 29: Status LEDs
Function tests for both status LEDs after power has been switched on (connection of the network cable):
Status LED Colors of the LED Function test
"Modules" green
"Network" green / red
Then another function test is run during which the LEDs light up briefly.
When the test is complete, the status LEDs indicate the device states which are described in the following tables.

12.13.1. Status of the device status LED "Modules"

LED Device state
Off No supply
Green Device is working
• 250 ms ON (green)
• 250 ms ON (green)
• 250 ms ON (red)
Explanation
• Device is not supplied with voltage
• Normal operating state
The device status LED ("modules") and the
bus status LED ("network") are located on
the electronics module.
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