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10. Appendix A
10.2. Standard Function Blocks
R400
Experion PKS Series A Fieldbus Interface Module User's Guide
399
July 2010
Honeywell
Function Notes
Supports Out of Service (OOS), Local Override (LO),
Manual (Man), Automatic (Auto), Cascade (Cas), and
Remote Cascade (RCas) modes.
The Set point (SP_D) supports the full cascade sub-
function.
Use the Cascade mode to transfer the output of
another block to the Set point (SP_D) of the DO block.
Use the IO_OPTS Invert selection to do a Boolean
NOT function between the field value and the output.
Use the IO_OPTS Invert selection to do a Boolean
NOT function between the SP_D and the output.
If the hardware supports a readback value, it is used
for READBACK_D, and, after accounting for the
IO_OPTS Invert selection, acts as the PV_D for this
block. If this is not supported, READBACK is
generated from OUT_D.
In the Man mode, an operator can force the output, in
a programmable logic controller sense. If Man mode is
not permitted, it must be supported as a transition
mode for exiting the OOS mode
The SIMULATE_D parameter is for testing purposes
only and always initializes in the disabled state.
Parameters
ALERT_KEY
BKCAL_OUT_D
BLOCK_ALM
BLOCK_ERR
BLOCK_ERR.DISABLED
CAS_IN_D
CHANNEL
FSTATE_TIME
FSTATE_VAL_D
GRANT_DENY
IO_OPTS
MODE_BLK
OUT_D
PV_D
PV_STATE
RCAS_IN_D
RCAS_OUT_D
READBACK_D
SHED_OPT
SIMULATE_D
SP_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.
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