Download LIBRARY B FUNCTION BLOCKS INSTRUCTION MANUAL

Transcript
Block Library
Restrict SP to limits if Cas or Rcas
Normally the setpoint will not be restricted to the setpoint limits except when entered by a human
interface device. However, if this option is selected, the setpoint will be restricted to the setpoint
absolute limits in the Cas and Rcas modes.
No OUT limits in Manual
Do not apply OUT_HI_LIM or OUT_LO_LIM when target and actual mode are Man. Trust the
operator to do the right thing.
STATUS_OPTS
Bit
PID
EPID
APID
0
IFS if BAD IN
(LSB)
Meaning
X
X
X
1
IFS if BAD
CAS_IN
X
X
X
X
2
Use
Uncertain as
Good
X
X
X
X
3
Propagate
Fail Forward
4
Propagate
Fail
Backward
5
Target to
Manual if
BAD IN
6
Uncertain if
Limited
X
X
7
BAD if
Limited
X
X
8
Uncertain if
Man mode
X
9
No select if
No AUTO
10
No select if
no Cas
11
Reserved
12
Reserved
13
Reserved
14
Reserved
15
Reserved
AI
X
DI
X
PUL
SPLT
AALM
ISEL
SPG
TIME
LLAG
DENS
FFET
X
X
X
X
X
X
X
AO
STEP
INTG
X
X
X
X
X
DO
X
X
X
X
X
X
X
X
X
X
X
IFS if BAD IN
Set Initiate Fault State status in the OUT parameter if the status of the IN parameter is BAD.
IFS if BAD CAS_IN
Set Initiate Fault State status in the OUT parameter if the status of the CAS_IN parameter is BAD.
Use Uncertain as Good
If the status of the IN parameter is Uncertain, treat it as Good. Otherwise, treat it as BAD.
Propagate Fail Forward
If the status from the sensor is Bad, Device failure or Bad, Sensor failure, propagate it to OUT
without generating an alarm. The use of these sub-status in OUT is determined by this option.
Through this option, the user may determine whether alarming (sending of an alert) will be done by
the block or propagated downstream for alarming.
Propagate Fail Backward
If the status from the actuator is Bad, Device failure or Fault State Active or Local Override is active,
propagate this as Bad, Device Failure or Good Cascade, Fault State Active or Local Override to
BKCAL_OUT respectively without generating an alarm. The use of these sub-status in BKCAL_OUT
is determined by this option. Through this option, the user may determine whether alarming
(sending of an alert) will be done by the block or propagated upstream for alarming.
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