<9. Connection Device Type>
9-8
IM 01W03D02-01EN
9.1.9 Errors and Countermeasures
Table 9.3
Error Message Summary
Integral
indicator
NAMUR
NE107
category*
1
Bit
Diagnostic
Status
Diagnostic
Status Detail
Cause
Release/
recovery
conditions
(except
restart) *
2
Output
Operation
Action
AL.01*
3
F
27
Faults in
electronics
ADAPTER
FAIL
FN310 failure
None
Output
value: Hold
previous
value
Output
status: BAD
Device
Failure
Contact
Yokogawa
service
personnel.
AL.02*
3
ANTENNA
FAIL
FN110failure
AL.03*
3
INTERNAL
BUS FAIL
Communication
failure between
FN110 and
FN310
Recovers
communication
between
FN110 and
FN310
Check the
connection
between
FN110 and
FN310
AL.10
F
26
Faults in
sensor or
actuator
element
SENSOR FAIL Disconnection
or
communication
error, between
the Modbus
device and
FN310
None
Output
value: Hold
previous
value
Output
status: BAD
Sensor
Failure
Check the
installation
environment
of Modbus
devise and
connecting
method of
Modbus
devices and
FN310.
AL.20
M
20
Power is
critical low:
maintenance
need
short-term
CRITICAL
LOWBAT
Low remaining
battery voltage
None
Normal
action
Replace the
batteries.
19
Power is low:
maintenance
need
mid-term
LOWBAT ALM Low remaining
battery voltage
AL.45
O
22
Environmental
conditions
out of device
specification
ADAPTER
TEMP HI
FN310
temperature is
above +85°C
Recovers
when the
temperature
returns to
+85°C below
Normal
action
Check the
ambient
temperature
of the FN310
ADAPTER
TEMP LO
FN310
temperature is
below -40°C
Recovers
when the
temperature
returns to
-40°C or more
ANTENNA
TEMP HI
FN110
temperature is
above +85°C
Recovers
when the
temperature
returns to
+85°C below
Check the
ambient
temperature
of the FN110
ANTENNA
TEMP LO
FN110
temperature is
below -40°C
Recovers
when the
temperature
returns to
-40°C or more
