Alarm, error and system messages
6.1 Diagnostics by LED Display
ET 200eco Distributed I/O Device
Operating Instructions, 08/2014, A5E00158716-AD 51
Status and error displays SF, BF, ON
Table 6- 1 Status and error display by LEDs
off off off • Electronics / sensor supply voltage too low
or missing at all at the DP slave.
• Switch on the electronics / sensor supply
(1L+) for the DP slave.
• Hardware fault. • Replace the I/O module.
* * on • Voltage (electronics / sensor supply)
present at the DP slave.
–
* on on • DP slave is in STARTUP. –
• Communication to the DP master is down.
• The DP slave is unable to detect any
transmission rate.
• Check the PROFIBUS DP connection.
• Check the DP master.
• Bus interruption
• DP master is out of service
• Check all cables of your PROFIBUS DP
network.
• Verify the firm seating of the
PROFIBUS DP on the terminal block.
off on on • The PROFIBUS address set at the config-
uration connector is wrong or > 99.
• Select a PROFIBUS address from the
range 1 to 991
on off on • Received diagnostics message
• Hardware fault in DP slave
• Evaluate diagnostics data
off on on • The configuration data sent by the DP
master to the DP slave do not match the
configuration of the DP slave.
• Check the DP slave configuration (I/O
address, PROFIBUS address).
off on on • The DP slave has detected the transmis-
sion rate, but s not addressed by the DP
master.
• The DP slave is not configured.
• Check the PROFIBUS address at the DP
slave or in the configuration software.
• Check the DP slave configuration (station
type).
off flashes off • Overload at the ET 200eco sensor supply. • Check the sensors / actuators connected
to the module. Remove the sensors /
actuators one after the other.
Result: The BF LED stops flashing, and
the ON LED will be lit after you have re-
moved the field device causing the over-
load.
• Your hardware is faulty if the BF LED
continues flashing even though you have
removed all sensors / actuators from the
I/O module.
* Not relevant
1 Switch POWER OFF / POWER ON after you edited the PROFIBUS address. With POWER ON, the PROFIBUS address