Allen-Bradley PLC-2/30

Jump Instructions and
Subroutine Programming
Chapter 11
118
enables a subroutine to call itself or loop. This will be explained in Section
11.3.3.
Instruction overview:
Output instruction
Must always jump from main program into subroutine area or from one
subroutine to another
Can jump 1 or more times to the label with the same identification
number
Uses 1 word of memory
Figure 11.7
JUMPTOSUBROUTINE
Format
|| ( JSR )
XX
XX = Octal Identification Number
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