Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
Process Control Instruction 339
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.
Table 1:
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…32,767 control read/write 340
TI - Reset Term - T
i
PD10:0.Ti word (INT) 0…32,767 control read/write 340
TD - Rate Term - T
d
PD 10:0.TD word (INT) 0…32,767 control read/write 341
TM - Time Mode PD10:0.TM binary 0 or 1 control read/write 342
LUT - Loop Update Time PD10:0.LUT word (INT) 1…1024 control read/write 342
ZCD - Zero Crossing Deadband PD10:0.ZCD word (INT) 0…32,767 control read/write 343
FF - Feed Forward Bias PD10:0.FF word (INT) -16,383…+16,383 control read/write 343
SE - Scaled Error PD10:0.SE word (INT) -32,768…+32,767 status read only 343
AM - Automatic/Manual PD10:0/AM binary (bit) 0 or 1 control read/write 344
CM - Control Mode PD10:0/CM binary (bit) 0 or 1 control read/write 344
DB - PV in Deadband PD10:0/DB binary (bit) 0 or 1 status read/write 344
RG - PLC 5 Gain Range PD10:0/RG binary (bit) 0 or 1 control read/write 345
SC - Setpoint Scaling PD10:0/SC binary (bit) 0 or 1 control read/write 345
TF - Loop Update Too Fast PD10:0/TF binary (bit) 0 or 1 status read/write 346
DA - Derivative Action Bit PD10:0/DA binary (bit) 0 or 1 control read/write 346
UL - CV Upper Limit Alarm PD10:0/UL binary (bit) 0 or 1 status read/write 346
LL - CV Lower Limit Alarm PD10:0/LL binary (bit) 0 or 1 status read/write 347
SP - Setpoint Out of Range PD10:0/SP binary (bit) 0 or 1 status read/write 347
PV - PV Out of Range PD10:0/PV binary (bit) 0 or 1 status read/write 347
DN - Done PD10:0/DN binary (bit) 0 or 1 status read only 347
EN - Enable PD10:0/EN binary (bit) 0 or 1 status read only 348
IS - Integral Sum PD10:0.IS long word
(32-bit INT)
-2,147,483,648…2,1
47,483,647
status read/write 348
AD - Altered Derivative Term PD10:0.AD long word
(32-bit INT)
-2,147,483,648…2,1
47,483,647
status read only 348
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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes