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Enable (EN)
Tuning Parameter
Descriptions
EN - Enable
The PID enabled bit is set (1) whenever the PID instruction is enabled. It
follows the rung state.
Integral Sum (IS)
Tuning Parameter
Descriptions
IS - Integral Sum
This is the result of the integration
Altered Derivative Term (AD)
Tuning Parameter
Descriptions
AD - Altered
Derivative Term
This long word is used internally to track the change in the process
variable within the loop update time.
Address
Data Format
PD10:0/EN
binary (bit)
Address
Data Format Range
PD10:0.IS
long word
-2,147,483,648 to
(32-bit INT)
2,147,483,647
K c
∫
------ - E t d
T
I
Address
Data Format Range
PD10:0.AD long word
-2,147,483,648 to
(32-bit INT)
2,147,483,647
Process Control Instruction
Range
Type
User Program
Access
0 or 1
status
read only
Type
User Program
Access
status
read/write
( )
.
Type
User Program
Access
status
read only
Publication 1763-RM001C-EN-P - October 2009
297
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