Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
168 Timer and Counter Instructions
Each timer address is made of a 3-word element. Word 0 is the control
and status word, word 1 stores the preset value, and word 2 stores the
accumulated value.
EN = Timer Enable Bit
TT = Timer Timing Bit
DN = Timer Done Bit
Addressing Modes and File Types can be used as shown in the following
table:
Timer Base Settings
Time Base Timing Range
0.001 seconds 0 to 32.767 seconds
0.01 seconds 0 to 327.67 seconds
1.00 seconds 0 to 32,767 seconds
Timer File
Word Bit
1514131211109 8 76543210
Word 0 EN TT DN Internal Use
Word 1 Preset Value
Word 2 Accumulated Value
ATTENTION
Do not copy timer elements while the timer enable bit
(EN) is set. Unpredictable machine operation may occur.
Timer Instructions Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 82.
Parameter
Data Files
(1)
Function Files
CS - Comms IOS - I/O DLS - Data Log
Address
Mode
Address Level
O I S B T, C, R N F ST L MG, PD RI/RIX PLS RTC HSC PTO, PWM STI EII BHI MMI LCD Immediate Direct Indirect Bit Word Long Word Element
Timer • • •
Time Base
• •
Preset
• •
Accumulator
• •
(1) Valid for Timer Files only.
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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