Yokogawa EJX930A - Manual (Page 76)

<4. Diagnostics>
4-26
IM 01C25R02-01E
Integral
indicator
HART configuration
tool display
Cause
4-20mA Output
operation during error
Countermeasure
Status
group
* 1
Diagnostic
List
group * 2
AL.89
B BLK
B Blocking * 1 , * 2 B Blocking (both-side
blockage) is detected.
It depends on the Diag Out
Option setting.
Off: Continue to operate and
output.
Burnout: Outputs AO upper
limit or AO lower limit.
Fall back: Outputs Diag Out
Fixed Val.
Check process
condition.
10
D
ia
g
St
at
us
AL.89
H BLK
H Side Blocking * 1
High Side Blocking * 2
High-pressure-side
blockage is detected.
AL.89
L BLK
L Side Blocking * 1
Low Side Blocking * 2
Low-pressure-side
blockage is detected.
AL.89
H LRG
Large Fluct H * 1
Large Fluctuation of
High Side * 2
Pressure fluctuation
amplitude of high-
pressure side is large.
AL.89
L LRG
Large Fluct L * 1
Large Fluctuation of
Low Side * 2
Pressure fluctuation
amplitude of low-
pressure side is large.
AL.89
A BLK
A Blocking * 1 , * 2 A Blocking (single-side
blockage) is detected.
AL. 90
SIM
Flow Simulation
mode * 3
Simulation mode * 4
Under Simulation Mode
for flow.
Simulate input output. Check Simulation
Mode.
5
Tr
an
sd
uc
er
St
at
us
AL. 91 * 3
F. SIM
F Simulate Mode Under Simulation Mode
for device variables.
Output the setting value of
Simulate-Value
Check Simulation
Mode
11
—
AL. 91 * 3
P. SIM
P Simulate Mode
AL.91 * 3
SP. SIM
SP Simulate Mode
AL. 91 * 3
ET. SIM
ET Simulate Mode
AL. 91 * 3
TF. SIM
TF Simulate Mode
AL. 91 * 3
PCT. SIM
% Simulate Mode
AL. 91 * 3
AO. SIM
AO Simulate Mode
*1: DD (HART 5/HART 7), DTM (HART 7)
*2: DTM (HART 5)
*3: Available only for HART 7
*4: HART 5