Lenze PROFIBU PC-based Automation - Manual (Page 63)

DMS 2.2 EN 07/2011 TD17
L
63
Control technology | PROFIBUS communication manual
Diagnostics
LED status displays
10.3 LED status displays
The LED status displays of the field devices, PROFIBUS communication modules, and the
MC-PBM communication card provide information on the device and communication
states.
LED status displays of the MC-PBM communication card

Detailed information on the LED status displays of the field devices and
PROFIBUS communication modules can be found in the corresponding
documentation.
LED Colour Status Description
SYS Green On Communication is active:
The device has established at least one connection to a configured
station.
Blinking 5 times per
second (5 Hz)
No error in the configuration:
Communication is stopped or the device is ready for communication.
However, there is no connection to a slave.
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 device has a communication problem with at least one
PROFIBUS slave or has detected a short circuit.
Yellow On The devices holds the PROFIBUS token and can transmit telegrams.
Blinking irregularly The device is in the PROFIBUS network and shares the token with
other PROFIBUS master devices.
- Off There is a connection to PROFIBUS.