YOKOGAWA DpharpEJX vigilantplant EJX Series - 4 Self-Diagnostics; Identify Problems by Using the Communicator; Checking with Integral Indicator

IM 01C25T01-01E
4-1
4. SELF-DIAGNOSTICS
4. SELF-DIAGNOSTICS
4.1 Self-Diagnostics
4.1.1 Identify Problems by Using the
Communicator
The HART communicator can be used to run self-
diagnostics on a transmitter and check for incorrect
data settings.
The Self test and Status commands are available for
self-diagnostics. When Self test is run, the integral
indicator shows an error code and alarm message if the
transmitter detects any illegal parameter settings and
functional faults. See table 4.2.1 Alarm Message
Summary for probable causes and countermeasures. If
the specific diagnostic item is known for the check,
you can directly call up the item by using the Status
command. See table 4.2.1 to determine the status
group.
The HART communicator diagnoses every command
you make. When a faulty command or keypad input is
performed, an error message appears. See table 4.2.2
HART Commnicator Error Messages for the details.
Diagnostic by “self test”
1
F0401.EPS
Call up Test device, and select Self
test.
EJX:
Test device
1 Status
2 Self test
HELP SAVE HOME OK
EJX:
Self test OK
DEL SET ABORT OK
2
If no error is detected, Self test OK
is displayed.
If there is an error, an error
message appears.
1. Device setup
2. Diag/Service
1. Test device
2. Self test
Diagnostic by “status”
1
F0402EPS
Call up Status, and select Status
group 6.
EJX:
Status
2 Status group 2
3 Status group 3
4 Status group 4
5 Status group 5
6 Status group 6
HELP SAVE HOME OK
EJX:
Status group 6
Illegal P LRV On
Illegal P URV Off
Illegal P SPAN Off
P SPAN trim err Off
P ZERO trim err Off
DEL SET ABORT EXIT
2
If there is no error, the result of
diagnostics is indicated as Off. If On
is indicated, a countermeasure for
that error is necessary.
1. Device setup
2. Diag/Service
1. Test device
1. Status
6. Status group 6
4.1.2 Checking with Integral Indicator
NOTE
If an error is detected by running self-diagnos-
tics, an error number is displayed on the integral
indicator. If there is more than one error, the
error number changes at three-second intervals.
See table 4.2.1 regarding the alarm codes.
F0403.EPS
Figure 4.1.2 Integral Indicator