Pepperl+Fuchs WHA-ADP Series, Manual

Page: 91 / 93

WHA-ADP-*
Troubleshooting
22
1980
2010
-0
2
91
The parameters
of an
independently
operating 4-wire
field device
cannot be read
by the adapter
DTM (Wired
Commuinicatio
n Dialog, see
chapter 5.5) Device does not support HART
protocol • Parameters can be read from a
HART device only.
Device address not found by the
Adapter DTM • Check the highest scan address
(see chapter 5.5).
Device not powered • Check device power supply.
Device not wired up correctly • Check the wiring (see chapter
3.3.1).
The parameters
of a field device
in a control loop
cannot be read
by the adapter
DTM (Wired
Commuinicatio
n Dialog, see
chapter 5.5) Device does not support HART
protocol • Parameters can be read from a
HART device only.
Device address not found by the
Adapter DTM • Check the highest scan address
(see chapter 5.5).
Device not powered • Check loop power.
Device not wired up correctly • Check the wiring (see chapter
3.3.1).
PLC or Remote I/O acting as
primary master forces adapter to
operate as slave • Configure adapter as secondary
master (see chapter 5.5).
PACTware
cannot find a
field device
connected to
Terminals 1 + 2
or 2 + 3 of the
adapter when
communicating
through a HART
modem
connected to
Terminals 5/7
and 6/8 For control loops with
communication resistor:
Device address not found by the
HART communication DTM • Configure the correct address
range ().
For control loops without
communication resistor, for 2-wire
devices powered by adapter and
for 4 wire devices:
No communication path to device
(design feature) • Depending upon circuit, connect
modem across Terminals
1 and 2 or 2 and 3 (see chapter
3.3.1).
• Configure the correct address
range ().
For all connections:
Device not powered • Check device power supply.
Adapter does
not restart after
disconnecting
and connecting
the battery Battery reconnected before
adapter power fully discharged - Disconnect the battery again.
- Press pushbutton for 3 seconds.
- Wait one minute.
- Reconnect the battery.
PACTware
cannot find a
connected
HART device
when
communicating
via
WirelessHART
gateway WHA-
GW Device does not support HART
protocol • Parameters can be read from a
HART device only.
Device address not found by the
Adapter DTM • Check the highest scan address
(see chapter 5.5).
Device not powered • See second fault.
Device powered, but shuts down
before it communicates • Increase power supply
parameter "Lead Time" in steps
of 10s until the fault is eliminated
(see chapter 5.8).
Fault Possible cause Corrective action