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10. Appendix A
10.2. Standard Function Blocks
R400
Experion PKS Series A Fieldbus Interface Module User's Guide
397
July 2010
Honeywell
provides it as an output for other fieldbus function blocks. A
functional schematic of the block is shown in the previous
illustration for reference.
Function Notes
Supports Out of Service (OOS), Manual (Man), and
Automatic (Auto) modes.
The FIELD_VAL_D represents the true ON/OFF state
of the value from the Transducer, using XD_STATE.
Use the IO_OPTS Invert selection to do a Boolean
NOT function between the field value and the output.
Use the PV_FTIME to set the time that the input must
be in one state before it gets passed to the PV_D.
The PV_D is always the value that the block places in
OUT_D, when the mode is Automatic.
In Manual mode, if allowed, an operator can write a
value to OUT_D.
The SIMULATE_D parameter is for testing purposes
only and always initializes in the disabled state.
Parameters
ACK_OPTION
ALARM_SUM
ALERT_KEY
BLOCK_ALM
BLOCK_ERR
BLOCK_ERR.DISABLED
CHANNEL
DISC_ALM
DISC_LIM
DISC_PRI
FIELD_VAL_D
GRANT_DENY
IO_OPTS
MODE_BLK
OUT_D
OUT_STATE
PV_D
PV_FTIME
SIMULATE_D
ST_REV
STATUS_OPTS
STRATEGY
TAG_DESC
UPDATE_EVT
XD_STATE
Reference
Refer to
Standard Function Block Parameters
in
Appendix
B
for definitions of each parameter.
Discrete Output block
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