Maple Systems MAPware-7000 - Manual (Page 156)

MAPware-7000 Ladder Logic Guide 148
1010-1041 rev. 00
Operand A
Offset Parameter Register Value
A Present Value D12 25
A+1 Setpoint Value D13 100
Operand B
Offset Parameter Register Value
B Proportional Coefficient D14 1
B+1 Integral Gain Constant High D15 4
B+2 Integral Gain Constant Low D16 10
B+3 Derivative Gain Constant Low D17 20
B+4 Derivative Gain Constant High D18 5
B+5 Gap Constant D19 0
B+6 Limit Constant D20 100
Operand C
Offset Parameter Register Value
C Manipulation Value D21 0
C+1 Last deviation error D22 78
C+2 Last Present Value D23 22
C+3 2
nd
to last Present Value D24 20
C+4 Remainder Value D25 0
When the normally open contact B4 is ON, the PID1 calculation is performed based upon the
formula given above and the values entered into the registers. The results are stored in the five
consecutive registers as specified by Operand C.