Error Handling
© SYS TEC electronic GmbH 2007 L-1032e_9 55
• CAN- ACK error
Possible causes:
no other CAN device connected to the CAN bus
incorrect CAN bus cabling,
hardware error,
terminating resistors are missing or wrong value
(120 Ohm at both ends are required)
Gateway: CAN error LED blinks with a 25:75 on/off ratio
until the transmission or receipt of a CAN message
was successful
Ethernet Error
LED
CAN Error
LED
Error Description
illuminates No connection established via BTP interface
or connection interrupted
illuminates BTP send buffer overflow (message loss)
illuminates BTP receive buffer overflow (message loss)
illuminates Error while sending or receiving over BTP
(message loss)
short flashes Receive buffer overflow (message loss)
blinks with
50:50 on/off
ratio
CAN bus-off error detected
blinks with
25:75 on/off
ratio
CAN acknowledgement error detected
short flashes Send buffer overflow
Table 7: Error Display Overview
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