Lenze PROFIBUS Controller-based Automation - Manual (Page 48)

10 Diagnostics
10.2 LED status displays of the MC-PBS communication card
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Lenze · Controller-based Automation · PROFIBUS® Communication Manual · DMS 4.3 EN · 04/2014 · TD17
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10.2 LED status displays of the MC-PBS communication card
[10-2] LED status displays
MC-PBx-001_LED
LED Colour State Description
SYS Green On Communication active
(cyclic data exchange with the PROFIBUS master)
Blinking 5 times per
second (5 Hz)
No communication
(no cyclic data exchange with the PROFIBUS master)
Blinking irregularly • Starting action: Missing or faulty configuration
• Runtime: Host watchdog time error
Yellow Blinking once per
second (1 Hz)
The device is in bootstrap loader mode and is waiting for the
firmware download
Blinking 5 times per
second (5 Hz)
The firmware download is executed.
Blinking irregularly A hardware or severe system error has been detected.
- Off No voltage supply or hardware is defective.
ST0 - Off No function
ST1 - Off No function
ST2 Red On The application program (bus-synchronous/device-controlled
communication mode) is no longer synchronous with the bus cycle.
Yellow On The slave has received parameter/configuration data from the
PROFIBUS master and is in the "DataExchange" state".
- Off No PROFIBUS communication
("DataExchange" state not reached)