
B-63983EN/02 4.LADDER LANGUAGE
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4.12.6 JMPC (Label Jump 2: SUB 73)
The JMPC functional instruction returns control from a subprogram to
the main program. Be sure to code the destination label in the main
program. The specifications of this JMPC functional instruction are
the same as those of the JMPB functional instruction, except that
JMPC always returns control to the main program.
• More than one jump instruction can be coded for the same label.
JMPC AA
Ladder
ro
ram
Main program
LBL AA
LBL BB
JMPC BB
LBL AA
JMPC AA
JMPC AA
Subprogram
Main program
Subprogram
Format
Fig. 4.12.6 shows the ladder format and Table 4.12.6 shows the
mnemonic format.
SUB 73
JMPC
L¡¡¡¡
CT
Specification
of the jump
destination
label
Fig. 4.12.6 Format of JMPC instruction
Table 4.12.6 Mnemonic of JMPC instruction
Mnemonic format Status of operation result
Step
number
Instruction
Address
No.
Bit No. Remarks ST3 ST2 ST1 ST0
1RD ¡¡¡¡ .¡ ACT ACT
2 SUB 73 JMPC instruction
3(PRM) L¡¡¡¡ Specification of the jump
destination label