UM EN AXL F SYS DIAG
30
PHOENIX CONTACT 8663_en_03
A000 Modular devices, lower-level bus (sub-bus)
A001 Lower-level bus: no module present Check the connected lower-level bus and its power
supply.
A002 Lower-level bus: incorrect module present Check the specified device and its power supply.
A003 Lower-level bus: module replaced with compati-
ble one
A004 Lower-level bus: more modules than expected
A005 Lower-level bus: residual system operated
A010 Lower-level bus: module error
A012 Lower-level bus: application on the module not
ready
A013 Lower-level bus: device reset
A020 Lower-level bus: communication error Check the specified device in the lower-level bus or in
the part of the system for the following aspects:
– Missing or incorrect shielding of the bus line (con-
nector)
– Missing or incorrect grounding,
missing or incorrect equipotential bonding
– Faulty connections in the connector
– Voltage dips on the power supply
A021 Lower-level bus: timeout
A022 Lower-level bus: multiple transmission errors
A023 Lower-level bus: I/O data communication error
A024 Lower-level bus: management data communica-
tion error
Check the specified device and its power supply.
A030 Lower-level bus: configuration error Check the parameterization of the specified device.
A041 Lower-level bus: hardware fault Restart the device. Replace the device if the error still
occurs.
A042 Lower-level bus: firmware error Check the parameterization of the specified device.
A043 Lower-level bus is asynchronous to the higher-
level system
Table 2-5 Error codes of the I/O modules [...]
Code
(hex)
Meaning Remedy
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