YOKOGAWA DL7440

App-21
IM 701450-01E
App
Appendix
Integration (INTG, IINTG)
The first and second order integrated values are derived using the trapezoidal rule.
• Equation for First Order Integration (INTG)
Point x 0 I 0 = 0
Point x
1 I 1 = (f 0 + f 1 )h
Point x
2 I 2 = (f 0 + f 1 )h + (f 1 + f 2 )h = I 1 + (f 1 + f 2 )
Point x
n I n = I n-1 +
1
2
1
2
(f n-1 + f n )h
1
2
1
2
1
2
• Equation for Second Order Integration (IINTG)
Point x 0 II 0 = 0
Point x
1 II 1 = (I 0 + I 1 )h
Point x
2 II 2 = (I 0 + I 1 )h + (I 1 + I 2 )h = II 1 + (I 1 + I 2 )h
Point x
n II n = II n-1 +
1
2
1
2
(I n-1 + I n )h
1
2
1
2
1
2
Binary Computation (BIN)
Performs binary computation using the specified threshold levels. For the procedure in
setting the threshold level, see section 9.3, “Binary Computation.”
BIN(C1)
1
0
Upper threshold level
Lower threshold level
Appendix 4 User-Defined Computation