ABB S900 Manual page 42

I/O System S900
Communication Interface for PROFIBUS DP, CI920
The error codes of the CI920 have the following meaning:
16:
17:
18:
19..21: reserved
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
Error Codes (I/O modules)
The error codes of the I/O modules have the following meaning:
19:
20:
21:
22:
23..29: reserved
30:
31:
42
ROM Error
RAM Error
EEPROM Error
no CAN communication
no redundant CAN communication
error of power supply 1
error of power supply 2
restart upon watchdog reset (message indicated for 10 seconds)
redundancy toggle has occurred (message indicated for 10 seconds)
redundant CI920 is missing
redundant CI920 is not ready
redundant CI920 is defective
no DP communication with CI920
unknown module type (set configuration)
unknown module type (actual configuration)
reserved
implausible (inconsistent) parameters
HART status error
HART error
3BDD010422R0101