6. Redundancy with NX3030 CPU
338
the correct value because they depend on the correct functioning of the communication between the
two CPUs, so that information can be correctly generated.
The “sNETA_Diag” substructure has the following fields for NETA synchronism channels
diagnostics:
Direct Representation
Variable
AT Variable
DG_NX4010.tRedundancy.Re
dDgnLoc.sNETA_Diag.*
TRUE – The synchronism channel has some
type of failure. The 3 next diagnostics will
indicate the specific failure.
FALSE – The synchronism channel is working
properly.
TRUE – The detected failure has its cause
within this PLC. Such failures are treated in a
special way.
FALSE – The NX4010 module is working
properly.
TRUE – The AL-2319A cable is disconnected
from the NX4010 module or broken in one of the
PLCs.
FALSE – The AL-2319A cable is connected to
the NX4010 module.
TRUE – This failure is reported in case a
synchronization service hasn’t been finished
successfully within a specific time out and
failures from the type bInternalFailure or
bLinkDownFailure haven’t been found to justify
that.
FALSE – The NX4010 module is working
properly.
Table 6-7. NETA Interface Specific Diagnostics
The “sNETB_Diag” substructure has the following fields for NETB synchronism channels
diagnostics:
Direct Representation
Variable
AT Variable
DG_NX4010.tRedundancy.
RedDgnLoc.sNETB_Diag.*
TRUE – The synchronism channel has some type
of failure. The 3 next diagnostics will indicate the
specific failure.
FALSE – The synchronism channel is working
properly.
TRUE – The detected failure has its cause within
this PLC. Such failures are treated in a special
way.
FALSE – The NX4010 module is working properly.
TRUE – The AL-2319A cable is disconnected from
the NX4010 module or broken in one of the PLCs.
FALSE – The AL-2319A cable is connected to the
NX4010 module.
TRUE – This failure is reported in case a
synchronization service hasn’t been finished
successfully within a specific time out and failures
from the type bInternalFailure or bLinkDownFailure
haven’t been found to justify that.
FALSE – The NX4010 module is working properly.