L-740FF-1-E
FOUNDATION Fieldbus-compliant ALTImass series
1
5.4 IT Function Block
IT function block outputs total flow.
Type of totalization
IT function block total
Transducer block total
(Synced with total on transmitter display)
Associated block
IT function block
Transducer block
Read parameter of
total value
OUT
F_TOTAL_1 or _2
Parameter for total reset
OP_CMD_INT
(Set to "1")
TOTALIZER_CONTROL_1 or _2
(Also available by display switch operation
※
)
Types of totalization and reset methods
※
: For details, refer to Instruction Manual L-740.
Fig.4.3 Block diagram of IT function block
REV̲FLOW1
REV̲FLOW1
REV̲FLOW2
REV̲FLOW2
RESET̲CONFIRM
IN̲1
IN̲2
RESET̲IN
PULSE̲VAL2
PULSE̲VAL1
UNIT̲CONV
TIME̲UNIT1
TIME̲UNIT2
INTEG̲OPTS
INTEG̲OPTS
INTEG̲TYPE
INPUT TYPE
INTEG̲OPTS
INPUT TYPE
INTEG̲OPTS
FLOW TYPE
Convert Rate
to Units/exec
Convert Rate
to Units/exec
Convert Accum
Difference to
Units/exec
Convert Accum
Difference to
Units/exec
-1
-1
Reverse
Reverse
Forward
Forward
Accnm
Accnm
Rate
Rate
Add
Integrate
TOTAL
RTOTAL
QUALITY
GOOD̲LIM
UNCERT̲LIM
CLOCK̲PER
N̲RESET
OUT
OUT̲TRIP
OUT̲PTRIP
M
M
M
M
OP̲CMD̲INT
RESET
CARRY
INTEG̲
OPTS
PRE̲TRIP
Compare
Compare
SP
=MANUAL
This device has total display (synced with total value on the display of transmitter) in the
transducer block as well as the IT function block. However, these totalizing functions are
independent and total value of one does not always match the other.
Each block has a parameter for resetting and either can be operated by high-level host
device. (Refer to table below.)
NOTE:
