Appendix 4 - Rtts Versions 8.30-005 And Later Versions; System Error Flags For Rtts Version 8.30-005 And Later Versions; Table 6 Falt Flags Rtts 8.30-005 And Later - ABB Triguard SC300E Safety Manual

11 Appendix 4 - RTTS versions 8.30-005 and later versions

11.1 System Error Flags for RTTS version 8.30-005 and later versions

The following diagnostic flags are available from the 'FALT' call and can be incorporated in
the system application logic to drive local alarm indicators and be transmitted to other
systems or workstations.
Bit Reference
0 History
1 Data/Voting
2 LFD
3 Monitor
4 INIT
5 MPP A
6 MPP B
7 MPP C
8 MPP A power
9 MPP B power
10 MPP C power
11 MPP low
Battery
12 Off-line module
13 Global Output
14 Multiple fault
15 Reserved

Table 6 FALT flags RTTS 8.30-005 and later

FALT bit 4 - Initialisation error can be cleared when both modules or the only module of a hot
repair partnership are installed in the chassis but are off-line. The application may be restarted
when this flag is cleared by use of the Clear History command with the modules off-line.
Whenever the initialisation flag is set, after all corrective actions have been taken to repair a
SC300E system, the Configuration Report MUST be inspected for off-line modules prior to
clearing the history table and restarting the application.
FALT Bit 13 - Global Output fault - this bit indicates that there is an error with at least one output
module (Piano, AO or DO) in the system.
Issue 5 - September 2006
Description
Entry in history table - errors logged relating to
processors and communications
2oo3 voting error – voting discrepancies
encountered and logged by the processors during
I/O scanning
latent fault detection of failed on or failed off signal
paths – monitor and fault bits set depending on
fault type and location
Initialisation error – bits are set in the fault or
monitor registers
System initialisation error – modules referenced in
the table of operations are missing. Either a single
slot module or both modules missing/offline in a
dual slot hot repair partnership.
Processor A failure – out of synchronisation
Processor B failure – out of synchronisation
Processor C failure – out of synchronisation
Processor A loss of power – fuse or PSU
Processor B loss of power – fuse or PSU
Processor C loss of power – fuse or PSU
Memory battery - low charge on one or more of the
processor's batteries
Single slot repair - module off-line – should be on-
line.
Fault on any output module(s)
Multiple faults on a module
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