Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
290 Process Control Instruction
Reset Term (T
i
)
Reset T
i
(word 4) is the Integral gain, ranging from 0 to 3276.7 (when RG
= 0), or 327.67 (when RG = 1) minutes per repeat. Set the reset time equal
to the natural period measured in the above gain calibration. A value of 1
adds the maximum integral term into the PID equation.
Rate Term (T
d
)
Rate T
d
(word 5) is the Derivative term. The adjustment range is 0 to
327.67 minutes. Set this value to 1/8 of the integral gain T
i
.
TIP
Controller gain is affected by the reset and gain range
(RG) bit. For information, see PLC 5 Gain Range (RG) on
page 294.
Tuning Parameter
Descriptions
Address Data
Format
Range Type User Program
Access
TI - Reset Term - T
i
PD10:0.Ti word
(INT)
0 to 32,767 control read/write
TIP
Reset term is affected by the reset and gain range (RG)
bit. For information, see PLC 5 Gain Range (RG) on page
294.
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
TD - Rate Term - T
d
PD 10:0.TD word (INT) 0 to 32,767 control read/write
TIP
This word is not effected by the reset and gain range
(RG) bit. For information, see PLC 5 Gain Range (RG) on
page 294.
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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