Wired Communication Faults - Pepperl+Fuchs WHA-ADP2-F8B2 Z1 Series Manual

WHA-ADP2-F8B2-*-**-Z1(-EX1)
Troubleshooting
8.3

Wired Communication Faults

Fault
PACTware
cannot find the
adapter when
communicating
via a HART
modem.
A field device
powered by the
adapter will not
start up
The parameters
of a field device
powered by the
adapter cannot
be read by the
adapter DTM.
Wired
Communication
Dialog: see
chapter 5.5
Possible Cause(s)
TM HART communication DTM not
connected to correct COM port
HART modem plugged into wrong
USB port (some computers assign
fixed COM ports to USB ports).
Maybe you are using a different USB
port than during setup.
Adapter address not found by the
HART communication DTM
For USB/HART modems, voltage
level at Terminals 7 and 8 to high for
reliable communication
Battery not connected or exhausted
Power supply parameters are
incorrect
Connected field device has a very
low impendance - the adapter
interprets this as a short-circuit and
switches off the power
Device does not support HART
protocol
Device address not found by the
Adapter DTM
Device not powered
Device powered, but shuts down
before it communicates
Corrective Action(s)
Select the correct COM port from the
drop-down menu.
RS-232C = COM1 or COM2
USB = COMx as displayed
Check to which COM port your
HART modem is connected.
Then set the correct COM port in the
HART communication DTM. See
chapter 4.5.2
Plug the HART modem into the
correct USB port.
Alternatively, adjust the COM
port setting in the HART
communication DTM. See
chapter 4.5.2
Configure the correct address
range. See chapter 4.5.2
Default adapter address = 15
Switch in the communication resistor
or connect a 250 Ω resistor across
terminals 5/7 and 6/8.
Check the connection, if
necessary replace the battery.
A simple check is to shake the
adapter or battery unit. If you
hear liquid, the battery still has
life.
Find the correct parameters in the
device manual and enter them into
the DTM. See chapter 5.8
Connect a resistor in series with the
device, for example, a 250 Ω
resistor.
Parameters can be read from a
HART device only.
Check the highest scan address.
See chapter 5.5
See previous fault.
Increase power supply parameter
"Lead Time" in steps of 10 s until the
fault is eliminated. See chapter 5.8
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