Figure 8.3 Ao Function Block Diagram - Flowserve Logix 3400IQ User Instructions

Table 8.7 AO Function Block Parameter List
Block Name Store
Index
Type
31 READBACK_ D
OUT
33 BLOCK_TEST* D
* Extension parameter
AO Block Diagram
Figure 8.3 is a block diagram showing the key components of the AO function block.
AO Block Diagram
CAS IN RCAS IN
SP SP
(Read)
(Write)
RCAS
CAS
AUTO
MAN
ACTUAL
LO
Setpoint
PV
Tracking
TARGET
SP Track Ret. Tgt
ACTUAL
SP PV Track in Man.
SP PV Track LO IMAN
SP RATE UP
Rate
SP RATE DN Limiting
RCAS
CAS
AUTO
ACTUAL
MAN
IMAN
WSP
Convert
ACTUAL
RCAS timeout
TARGET
MODE
Select PERMITED
SHED OPT
Targ to MAN on Bad IN
UPDATE EVT
BLOCK ALM
STATUS OPTS

Figure 8.3 AO Function Block Diagram

Data Type Valid Write Restrictions
(Units) Range
ANALOG (PV) Read Only
Array of Read Only
Unsigned8
SHED RCAS
Time OUT
Timer SHED OPT
RCAS timeout
Setpoint
SP LO LIM
Limiting
SP HI LIM
TARGET
ACTUAL
FaultState
LO Last SP
Check
FSTATE
VALUE
FaultState to Value
FSTATE TIME
OUT XD SCALE
PV SCALE
T
P
Invert
Incr. to Close
SIMULATE:
CHANNEL
Transducer Block 1
Transducer Block 2
Transducer Block n
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
Default Value
All zeros
RCAS OUT
OUT
F O
ROM UT
C
ONVERT
Status
Calculation
RCAS timeout
fstate: Active
FSTATE_VAL
PV
Convert
READBACK_Out
O
O UT
READBACK
ARAMETER
RS Feature_Sel
Out_Readback On
TRANSDUCER SIMULATE
BKCAL OUT
U
SE PV
FOR BKCAL
PV
ENABLE
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