2600T SERIES | PRESSURE TRANSMITTERS | OI/266/FF-EN REV. E
105
Diagnostic
Block_Err Possible Reasons OUT Status
Block Configuration error
BAD + Out Of Service
See Note A
Input Failure/process
variable has BAD status
The value linked in input coming from the upstream
blocks has BAD Status.
As Calculated and depending by the STATUS_OPTS
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
The OUT Status of the CS block is the same of the Selected Input exception for:
• If input is Uncertain, the output is Bad unless the STATUS_OPTS is set to Use Uncertain as Good.
• If all the inputs are Bad the CS mode goes to MAN as well as it does the PID. This condition produces the OUT Status to be set to
IFS if the STATUS_OPTS is set to IFS if BAD IN.
• If no inputs have been linked or are valid the OUT Status is set to Bad - Configuration Error
Supported STATUS_OPTS:
• IFS if BAD IN
• Use Uncertain as GOOD
Status supported for other output variables:
• If the BKCAL_IN status is NI or IR, this status is transferred to the three BKCAL_SEL_x.
• If the BKCAL_IN status is not normal it is transferred to the selected BKCAL_SEL_x output.
• The BKCAL_SEL_x Status of the deselected inputs is set to Not Selected with the appropriate high or low limit set.
• When the CS is in MAN no inputs are selected. All the BKCAL_SEL_x status are set to Not Invited and Constant limits with the
same value of OUT.
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 OUT_HI_LIM > OUT_LO_LIM
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 Block is in MAN mode The Target Mode is set to MAN Set the Target Mode to AUTO
An used input has Bad Status Check the upstream blocks
The Selected input has UNCERTAIN Status Set the STATUS_OPTS to Use Uncertain as Good
The OUT Status is BAD There are no inputs linked in (OUT Status = BAD
Configuration Error)
Review the FB application design
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
Idx Parameter Description / Range / Selections / Note
BLOCK_OBJ
In the Block Object data structure, there are different items describing the block characteristics. Execution period, Number
of parameters in the block, the DD Revision, Profile Revision, View Objects characteristics and so on
ST_REV
The revision level of the Static data associated with the Function Block. The revision level is incremented each time a static
parameter value (S – under Storage) in the block is changed.
TAG_DESC The user description of the intended application of the block
STRATEGY The strategy field can be used to identify grouping of blocks. This data is not checked or processed by the block.
ALERT_KEY The identification number of the plant unit. This information may be used in the host for sorting alarms, etc.
MODE_BLK
TARGET AUTO / MAN / OOS The selectable modes by the operator.
ACTUAL The mode the block is currently in.
PERMITTED AUTO / MAN / OOS Allowed modes that the target may take on
NORMAL AUTO The common mode for the Actual.
BLOCK_ERR
This parameter reflects the error status associated with the hardware or software components associated with a block. It
is a bit string, so that multiple errors may be shown.
OUT The block output value calculated as a result of the
block execution, expressed in OUT_SCALE unit
Writeable only if MODE_BLK.ACTUAL = MAN
OUT_SCALE
The high and low scale values, engineering units code, and number of digits to the right of the decimal point to be used in
displaying the OUT parameter and parameters which have the same scaling as OUT.
GRANT_DENY
STATUS_OPTS
Options which the user can select for the block processing of status. The available selections are:
IFS if BAD IN
Use Uncertain as Good
First input value to the selector
Expressed in OUT_SCALE Unit Second input value to the selector
Third input value to the selector
SEL_TYPE
This parameter specifies the type of selector action
Low
High
Middle
BKCAL_IN
The analog input value from another block’s BKCAL_OUT output that is used to prevent reset windup and to initialize the
control loop. Expressed in OUT_SCALE Unit
OUT_HI_LIM
Expressed in OUT_SCALE Unit
Limits the maximum output value.
OUT_LO_LIM Limits the minimum output value.
UPDATE_ EVT This alert is generated by any change to the static data
BLOCK_ALM
The block alarm is used for all configuration, hardware, connection failure or system problems in the block. The cause of the
alert is entered in the subcode field. The alert will set the Active Status in the status parameter. When the Unreported
status is cleared by the alert reporting task, another block alert may be reported without clearing the Active Status, if the
subcode has changed
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