Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Process Control Instruction 289
Tuning Parameters
The table below shows the tuning parameter addresses, data formats, and
types of user program access. See the indicated pages for descriptions of
each parameter.
Controller Gain (K
c
)
Gain K
c
(word 3) is the proportional gain, ranging from 0 to 3276.7 (when
RG = 0), or 0 to 327.67 (when RG = 1). Set this gain to one-half the value
needed to cause the output to oscillate when the reset and rate terms
(below) are set to zero.
Tuning Parameter
Descriptions
Address Data Format Range Type User
Program
Access
For More
Information
KC - Controller Gain - K
c
PD10:0.KC word (INT) 0 to 32,767 control read/write 289
TI - Reset Term - T
i
PD10:0.Ti word (INT) 0 to 32,767 control read/write 290
TD - Rate Term - T
d
PD 10:0.TD word (INT) 0 to 32,767 control read/write 290
TM - Time Mode PD10:0.TM binary 0 or 1 control read/write 291
LUT - Loop Update Time PD10:0.LUT word (INT) 1 to 1024 control read/write 291
ZCD - Zero Crossing Deadband PD10:0.ZCD word (INT) 0 to 32,767 control read/write 292
FF - Feed Forward Bias PD10:0.FF word (INT) -16,383 to +16,383 control read/write 292
SE - Scaled Error PD10:0.SE word (INT) -32,768 to +32,767 status read only 292
AM - Automatic/Manual PD10:0/AM binary (bit) 0 or 1 control read/write 293
CM - Control Mode PD10:0/CM binary (bit) 0 or 1 control read/write 293
DB - PV in Deadband PD10:0/DB binary (bit) 0 or 1 status read/write 293
RG - PLC 5 Gain Range PD10:0/RG binary (bit) 0 or 1 control read/write 294
SC - Setpoint Scaling PD10:0/SC binary (bit) 0 or 1 control read/write 294
TF - Loop Update Too Fast PD10:0/TF binary (bit) 0 or 1 status read/write 295
DA - Derivative Action Bit PD10:0/DA binary (bit) 0 or 1 control read/write 295
UL - CV Upper Limit Alarm PD10:0/UL binary (bit) 0 or 1 status read/write 295
LL - CV Lower Limit Alarm PD10:0/LL binary (bit) 0 or 1 status read/write 296
SP - Setpoint Out of Range PD10:0/SP binary (bit) 0 or 1 status read/write 296
PV - PV Out of Range PD10:0/PV binary (bit) 0 or 1 status read/write 296
DN - Done PD10:0/DN binary (bit) 0 or 1 status read only 296
EN - Enable PD10:0/EN binary (bit) 0 or 1 status read only 297
IS - Integral Sum PD10:0.IS long word
(32-bit INT)
-2,147,483,648 to
2,147,483,647
status read/write 297
AD - Altered Derivative Term PD10:0.AD long word
(32-bit INT)
-2,147,483,648 to
2,147,483,647
status read only 297
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
KC - Controller Gain - K
c
PD10:0.KC word (INT) 0 to 32,767 control read/write
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English