ABB S900 - Channel-Specific Diagnostics; Channel Error Reporting and Codes

I/O System S900
Communication Interface for PROFIBUS DP, CI920
3BDD010422R0101 41
Table 4-9 Channel-specific diagnostics
Bit 7..6 5..0
Octet 1
Header Slot
10 0..16
Bit 7..6 5..0
Octet 2
I/O Channel
00: reserved
01: input
10: output
11: input / output
0..8
Bit 7..5 4..0
Octet 3
Channel type Error
code
000: reserved
001: 1 bit
010: 2 bit
011: 4 bit
100: 1 byte
101: 1 word
110: 2 words
111: reserved
see
above
Error codes (according to DP standard)
0: reserved
1: short-circuit
2: undervoltage (used for underflow)
3: overvoltage (used for overflow)
4: overload
5: overtemperature
6: wire-break
7: high limit value exceeded
8: low limit value fallen below
9: error
10..15: reserved
16..31: vendor-specific (S900)
Error codes (CI920)
The meaning of the transmitted error codes can be different for every slot or
module type of a modular slave. In the case of the I/O System S900 different
interpretations are possible for the CI920 and for all I/O modules.