Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
250 Program Control Instructions
LBL - Label
Instruction Type: input
The LBL instruction is used in conjunction with a jump (JMP) instruction
to change the order of ladder execution. Jumps cause program execution
to go to the rung marked LBL label number.
The immediate data range for the label is from 0 to 999. The label is local
to a program file.
JSR - Jump to
Subroutine
Instruction Type: output
The JSR instruction causes the controller to start executing a separate
subroutine file within a ladder program. JSR moves program execution to
the designated subroutine (SBR file number). After executing the SBR,
control proceeds to the instruction following the JSR instruction.
The immediate data range for the JSR file is from 3 to 255.
SBR - Subroutine Label
Instruction Type: input
The SBR instruction is a label which is not used by the processor. It is for
user subroutine identification purposes as the first rung for that
subroutine. This instruction is the first instruction on a rung and is always
evaluated as true.
LBL
Q2:0
Execution Time for the LBL Instruction
Controller When Rung Is:
True False
MicroLogix 1100 0.78 μs 0.78 μs
JSR
Jump To Subroutine
SBR File Number U:255
JSR
Execution Time for the JSR Instruction
Controller When Rung Is:
True False
MicroLogix 1100 1.87 μs 0.84 μs
SBR
Subroutine
SBR
Execution Time for the SBR Instruction
Controller When Rung Is:
True False
MicroLogix 1100 0.78 μs 0.78 μs
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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