Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Process Control Instruction 297
Enable (EN)
The PID enabled bit is set (1) whenever the PID instruction is enabled. It
follows the rung state.
Integral Sum (IS)
This is the result of the integration .
Altered Derivative Term (AD)
This long word is used internally to track the change in the process
variable within the loop update time.
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
EN - Enable PD10:0/EN binary (bit) 0 or 1 status read only
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
IS - Integral Sum PD10:0.IS long word
(32-bit INT)
-2,147,483,648 to
2,147,483,647
status read/write
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
AD - Altered
Derivative Term
PD10:0.AD long word
(32-bit INT)
-2,147,483,648 to
2,147,483,647
status read only
K
c
T
I
------ -
Etd()
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix