Table Of Contents - Pepperl+Fuchs HD2-DM-A Manual

Advanced Diagnostics
Appendix
Bit
6
7
8
9
10 ... 31
8.5 Expert System Phenomena IDs
ID
101
102
103
104
172
Name Description
IO Out of Specifica- Any bit in IO_TB.FD_OOS_ACTIVE is
tion set when IO_TB has a target mode of
"AUTO".
IO Maintenance Any bit in IO_TB.FD_MR_ACTIVE is set
Required when IO_TB has a target mode of
"AUTO".
IO Fail Any bit in IO_TB BINARY_ERRORS or
ANALOG_ERRORS is set when IO_TB
has a target mode of "AUTO".
Block Configura- Any transducer block with target mode
tion error "AUTO" of the device shows a block con-
figuration error.
Not used
Phenomenon
Signal level is too high,
only host communication
and segment power are
detected
Signal level of one or more
devices is too high
Signal level of one or more
devices is too low for the
given topology
Segment voltage is mea-
sured as zero. Segment is
unpowered
Cause(s)
Trunk breakage between
fieldbus power supply and
first device coupler
Not enough terminators
Trunk breakage between
device couplers
Topology error - installed
topology does not match
configured topology
Too many terminators
Terminal failure: corrosion
Cable resistance is too
high
Topology error - installed
topology does not match
configured topology
Fieldbus power supply
failed
Bulk power supply failed
Fieldbus power supply
removed
Cable breakage, short cir-
cuit or terminal connection
failure
Diagnostic device is
wrongly or not connected
to the segment
Default Mapping
Offspec
Maintenance
Required
Fail
Maintenance
Required
Action(s)
Check trunk, fieldbus
power supply terminals
and first device coupler
Check if a terminator is
installed on both ends of
the trunk
Check trunk cable and
device coupler terminals
Check that the topology
settings match the installa-
tion
Check that one terminator
is installed on each end of
the trunk cable, but no
more than these two in total
Check if the resistance of
any terminal is too high
Check if the correct cable
is installed and the cable
can be used for the topol-
ogy
Check that the topology
settings match the installa-
tion
Replace fieldbus power
supply module
Check bulk power supply
Install fieldbus power sup-
ply
Check cabling and termi-
nals
Check wiring connection to
the segment