turck BL20-GW-CANOPEN, User Manual, Page: 50 / 95

BL20 - Gateway for CANopen
D301087 1211 - BL20 CANopen 4-20
4.10 Status Indicators/ Diagnostic Messages Gateway
The gateway transmits the following diagnostics: the status of the BL20 station, the communication via
the internal module bus, the communication to CANopen and the status of the gateway.
Diagnostic messages are displayed in two ways:
„
via individual LEDs
„
via the software of the respective host system or the software-tool I/O-ASSISTANT
4.10.1 Diagnostic Messages via LEDs
Every BL20 gateway displays the following statuses via LEDs:
„
2 LEDs for module bus communication (module bus LEDs):
GW and IOs
„
2 LEDs for CANopen communication (fieldbus LEDs):
ERR and Bus
The LED diagnoses shown below apply to both gateway versions:
„
BL20-GW-CANOPEN
„
BL20-GWBR-CANOPEN
An additional diagnosis indication is shown for the BL20-GWBR-CANOPEN.
Table 4-11:
LED indicators LED Status Meaning Remedy
GW OFF CPU not supplied.
Green 5 V DC operating voltage is present;
firmware is active; gateway is ready
for operation and transfer -
GW: green,
flashing,
1 Hz
IOs: red Firmware not active Reload the firmware!
Green,
flashing,
4 Hz Firmware active, gateway hardware
is defect Replace the gateway.
Additional diagnosis indication for BL20-GWBR-CANOPEN
GW green,
blinking, 1
Hz U
SYS
: undervoltage or overvoltage
U
L
: undervoltage
Check that the supply voltage is
within the permissible range.