Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 177

Process control function blocks
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■Integrated value calculation
This function block performs the following processing to the input value increment calculated by input value increment
operation processing.
Integration start signal (RUN)
FALSE
FALSE
TRUE
TRUE
T1: Input value increment operation processing result
T2: Integrated value (integral part)
T3: Integrated value (decimal part)
T4: Integrated value increment (integral part)
T5: Integrated value increment (decimal part)
W_: Weight per pulse
U_: Unit conversion constant
PV: Integrated value (integral part)
SUM2: Integrated value (decimal part)
■Output conversion
This function block performs the following processing to the integrated value calculated by integrated value calculation
processing.
Integration
Condition
pattern
(SUMPTN)
0
T2 > HILMT
Others
1
T2 > HILMT
Others
T2: Integrated value (integral part)
T3: Integrated value (decimal part)
PV: Integrated value (integral part)
SUM2: Integrated value (decimal part)
SUMOUT1: Integrated value output (integral part)
SUMOUT2: Integrated value output (decimal part)
■Processing operation
The processing operation is not changed by the control mode.
Operation error
Error code
Description
(SD0)
3400H
An invalid operation (such as division by zero) is performed.
Integration pause signal (HOLD)
FALSE
TRUE
FALSE
TRUE
Output variable (SUMOUT1, SUMOUT2)
Integrated value
Integrated value
(integral part)
(decimal part)
(SUMOUT1)
(SUMOUT2)
SUMOUT1 = T2 - HILMT - 1
SUMOUT2 = T3
SUMOUT1 = T2
SUMOUT2 = T3
SUMOUT1 = HILMT
SUMOUT2 = 0
SUMOUT1 = T2
SUMOUT2 = T3
Integrated value calculation processing
result
(T2: Integrated value (integral part), T3:
Integrated value (decimal part))
T2 = 0, T3 = 0
T2 = 0, T3 = 0
T4 = Quotient of {(T1  W_)/U_} (integral part)
T5 = Remainder of {(T1  W_)/U_} (decimal part)
T2 = Quotient of PV + T4 + [{(SUM2 + T5)/U_}]
(integral part)
T3 = Remainder of {(SUM2 + T5)/U_} (decimal
part)
T2 = PV, T3 = SUM2
Tag data (PV, SUM2)
Integrated value
Integrated value
(integral part) (PV)
(decimal part) (SUM2)
PV = T2 - HILMT - 1
SUM2 = T3
PV = T2
SUM2 = T3
PV = HILMT
SUM2 = 0
PV = T2
SUM2 = T3
9 I/O CONTROL
9.7 Pulse Integrator (M+P_PSUM)
9
175

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