Appendix 2. Integrator (It) Block; A2.1 Schematic Function Diagram Of Integrator Block - YOKOGAWA Admag TI Series User Manual

Appendix 2. Integrator (IT) Block

The IT block adds two main inputs and integrates them for output. The block compares the
outputs with TOTAL_SP and PRE_TRIP and generates signals when the limits are reached
(OUT_TRIP output, OUT_PTRIP output).
The output is as represented by the following equation (for counting UP and RATE conversion).
OUT = Integration start value + Total
Total = Total + Current Integral
Current Integral = (x + y) x Δt
x
y
Δt
A2.1 Schematic Function Diagram of Integrator
Block
The functional block diagram of the IT block is shown below.
IN_1
REV_FLOW1
IN_2
REV_FLOW2
RESET_IN
RESET_CONFIRM
IN_1 ................................ Block input 1 (value & status).
IN_2 ................................ Block input 2 (value & status).
REV_FLOW1 .................. Indicates whether the sign of IN_1 is reversed.
Discrete signal.
REV_FLOW2 .................. Indicates whether the sign of IN_2 is reversed.
Discrete signal.
RESET_IN ...................... RESET signal of the integrated values. Discrete signal.
RESET_CONFIRM......... RESET confirmation input. Discrete signal.
OUT ................................ Output (value & status).
OUT_PTRIP.................... Set if the target value PRE_TRIP is exceeded. Discrete signal.
OUT_TRIP ...................... Set when the target value exceeds TOTAL_SP (or 0). Discrete signal.
: IN_1 value whose unit has been converted
: IN_2 value whose unit has been converted
: block execution period
INTEG_OPTS
(INPUT TYPE)
TIME_UNIT1
–1
Convert Rate
Convert Accum
PULSE_VAL1
INTEG_OPTS
(INPUT TYPE)
TIME_UNIT2
–1
Convert Rate
Convert Accum
PULSE_VAL2
<Appendix 2. Integrator (It) Block>
INTEG_TYPE
INTEG_OPTS (QUALITY)
Reverse
GOOD_LIM
UNCERT_LIM
Forward
INTEG_OPTS
(FLOW TYPE)
Integrate
Add
TOTAL / RTOTAL
INTEG_OPTS
Reverse
(CARRY)
Forward
OP_CMD_INT
UNIT_CONV
(RESET)
CLOCK_PER
MAN
N_RESET
OUT
MAN
PRE_TRIP
OUT_PTRIP
Compare
MAN
TOTAL_SP
OUT_TRIP
Compare
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