J DF 3 0 0 |
FI EL D I N D I C ATO R | O I/J D F 3 0 0 - EN R E V. B
37
Diagnostic
Block_Err
Possible Reasons
OUT Status
Block Configuration error
•
ARITH_TYPE = 0 (uninitialized)
•
GAIN = 0
• if COMP_HI_LIM =< COMP_LO_LIM and ARITH_
TYPE in
•
the range 1-5
•
if BAL_TIME =< macrocycle and different from 0
BAD + Out Of Service
See Note A
Input Failure/process variable has
BAD status
At least one of the inputs used in the Output calculation
is not usable**:
**For the inputs
IN and IN_LO
usable status are:
• GOOD_NC
• GOOD_C
• UNCERTAIN with INPUT_OPTION = Use uncertain
The worst Status of the used inputs
Out-of-Service
The Actual_Mode is OUT OF SERVICE
BAD + Out Of Service
NOTE A
:
The specific block cannot be switched out from OUT OF SERVICE due to the Configuration Error. The Bad-Configuration Error Status
is overridden by the Bad-Out Of Service Status.
OUT Status
Status of PV depends by the factor
g
. If it is less than 0.5 it will be used the Status of IN_LO otherwise it will use the Status of IN
The inputs with status byte different from GOOD are controlled by the INPUT_OPTS. The status of unused inputs is ignored.
The Status of the OUT will be the same of PV except when the PV is GOOD and the Status of the auxiliary inputs is NOT GOOD and
the INPUT_OPTS is not configured to use it. In this case the Status of the OUT is UNCERTAIN.
Otherwise the OUT Status id the worst of the inputs used in the calculation after applying the INPUT_OPTS
Troubleshooting
Problem
Possible cause
Solution
The Block cannot be
removed from OOS mode
The Target Mode is not set to AUTO
Set the Target Mode to AUTO and/or remove the OOS
The Configuration Error bit is set in the BLOCK_ERR
• Set the ARITH_TYPE with a valid value. It must be
different from 0 and in the range 1 – 9
•
Set the GAIN with value different from 0
• Set COMP_HI_LIM > COMP_LO_LIM when
ARITH_TYPE in the range 1-5
•
Set BAL_TIME > of the Macrocycle IF different from 0
The RESOURCE BLOCK is not in AUTO mode
Set the Target Mode of the RESOURCE BLOCK to AUTO
mode
The Block is not scheduled
Design the FB Application correctly and download it to the
devices
The OUT Status is BAD
At least one of used inputs have a BAD status
Check the upstream blocks
The OUT Status is
UNCERTAIN
At least one of the used inputs have an UNCERTAIN
status
Check the upstream blocks
The OUT Status has the Limit
bits (0, 1) set to Constant
The Actual Mode is set to MAN
Set the Target Mode to AUTO
Block Alarm Not Working
(Events not notified)
The FEATURE_SEL has not the Reports bit Set
Set the REPORTS bit in the FEATURE_SEL of the
RESOURCE BLOCK
LIM_NOTIFY value is less of the MAX_NOTIFY value
Set the value of LIM_NOTIFY equal, at least, to the
MAX_NOTIFY value
