turck BL20 Series - 12.6.7 Diagnostic and status messages

447
2020/09
12.6.7 Diagnostic and status messages
LED status displays
LED Display Meaning
Module diagnostics
DIA Off No error messages or diagnostics
Red Module bus communication faulty
red, flashing Module indicates a diagnostics message
Configuration status
Rdy Off SWIRE bus not active
Green
– The SWIRE bus is ready for data exchange.
– If the PLC configuration check is activated:
– The configuration stored in the BL20-E-1SWIRE matches the SET con-
figuration stored in the PLC.
– SW LED and RDY LED are lit:
– The SWIRE bus is in data exchange mode
green, flashing
– The PLC configuration check is carried out.
– The configuration stored in the BL20-E-1SWIRE does not match the
SET configuration stored in the PLC.
SWIRE bus status
SW Off
Green
– The physical structure of the SWIRE bus matches the configuration
stored in the BL20-E-1SWIRE.
– The SWIRE bus is in operation.
– SW LED and RDY LED are lit:
– The SWIRE bus is in data exchange mode
green, flashing
– The physical structure of the SWIRE bus is compared to the configura-
tion stored in the BL20-E-1SWIRE.
– The physical structure of the SWIRE bus does not match the configu-
ration stored in the BL20-E-1SWIRE.
– The SWIRE bus cannot be assigned a valid configuration. Possible
causes:
– SWIRE bus with zero slaves.
– SWIRE slave faulty.
Indication of the SWIRE bus operating voltage
U
SW
Off – The voltage U
SW
is faulty.
– The module bus voltage is not present.
Green
– The voltage U
SW
is within the permissible range and the module bus
voltage is present.
Indication of the relay supply of the bus
U
AUX
Off – The voltage U
AUX
is faulty.
Green
– The voltage U
AUX
is in the permissible range.