Delta DVP-ES2 User Manual download pdf (Page 361)

100

101

3. Instruction Set

3-245

Device

No.

Function Set-point range Explanation

+9,

10:

Lower bound of output

value (MV) , 32-bit

-2,147,483,648

2,147,483,647

Ex: if S

+7 is set as -1,000, MV will

be -1,000 when it is smaller than

-1,000.

+11,

12:

Upper bound of integral

value, 32-bit

-2,147,483,648

2,147,483,647

Ex: if S

+8 is set as 1,000, the

integral value will be 1,000 when it

is bigger than 1,000 and the

integration will stop. S

+8 has to

be bigger or equal S

+9;

otherwise the upper bound and

lower bound value will switch.

+13,

14:

Lower bound of integral

value, 32-bit

-2,147,483,648

2,147,483,647

Ex: if S

+9 is set as -1,000, the

integral value will be -1,000 when

it is smaller than -1,000 and the

integration will stop.

+15,

16:

Accumulated integral

value, 32-bit

Available range

of 32-bit floating

point

The accumulated integral value is

usually for reference. Users can

clear or modify it (in 32-bit floating

point) according to specific needs.

+17,

18:

The previous PV, 32-bit

-2,147,483,648

~2,147,483,647

The previous PV is usually for

reference. Users can clear or

modify it according to specific

needs.

+19,

For system use only.

12. The explanation of 32-bit S

and 16-bit S

are almost the same. The difference is the capacity

of S

+5 ~ S

+20.

PID Equations:

1. When control mode (S

+4) is selected as K0, K1, K2 and K5:

y In this control mode, PID operation can be selected as Automatic, Forward, Reverse and

Automatic with MV upper/lower bound control modes. Forward / Reverse direction is

designated in S

+4. Other relevant settings of PID operation are set by the registers

designated in S

3 ~

3+5.

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Delta DVP-ES2 User Manual Page 361

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