WAGO-I/O-SYSTEM 750
Diagnostics 71
750-658 CAN Gateway
Manual
Version 1.2.1, valid from FW/HW-Version 01/01
10
Diagnostics
The following diagnostics are output via mailbox and can also be viewed via the
respective user interface:
Table 25: Diagnostics
Error code LED Diagnostics
Explanation
3E8 (1000)
Red CAN Stuff Error
There is a single error on the CAN bus.
3E9 (1001)
Red CAN Form Error
There is a single error on the CAN bus.
3EA (1002) Red CAN Acknowledge
Error
There is no acknowledgement from the
receiver after a CAN telegram was
sent.
3EB (1003) Red CAN Bit Recessive
Error
There is a single error on the CAN bus.
3EC (1004) Red CAN Bit Dominant
Error
There is a single error on the CAN bus.
3ED (1005) Red CAN CRC Error
Faulty CRC of a received CAN
telegram
3EE (1006) Red CAN Software
Error
There is an internal interface error.
3EF (1007) Red
CAN HW in
BUS OFF State
Error
I/O module in "BUS OFF State"
3F0 (1008)
Red CAN Rx Error
Counter > 127
The internal counter (receive direction)
is greater than 127. The I/O module is
initialized again.
3F1 (1009) Yellow CAN Rx Error
Counter > 96
The internal counter (receive direction)
is greater than 96.
3F4 (1012)
Red CAN Transmit
Error
Error when sending a CAN telegram
3F6 (1014)
Red CAN RX0 Overrun
Error
Buffer overrun of the CAN buffer
(receive direction)
Data loss
3F7 (1015)
Red CAN RX1 Overrun
Error
Buffer overrun of the CAN buffer
(receive direction)
Data loss
3F8 (1016)
Red CAN TX Overrun
Error
Buffer overrun (send direction)
Data
loss
3FA (1018) Red
CAN Upstream
FIFO Overflow
Error
Internal buffer overflow (receive
direction)
3FB (1019) Red
CAN Downstream
FIFO Overflow
Error
Internal buffer overflow (send direction)
7D0 (2000) Red General Error
Internal error
7D1 (2001) Red 24V Unplugged
Error
The 24 V power supply is
disconnected.
7D3 (2003) Red ExtRegCom Rsp
Not Ok
Advanced register communication:
general error