Fnc 00 - Cj / Conditional Jump - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
8.1 FNC 00 – CJ / Conditional Jump
Outline
CJ or CJP instruction jumps to a pointer (P); The sequence program steps between CJ or CJP instruction and the
pointer are not executed.
CJ and CJP instructions reduce the cycle time, and allow programs with double coils.
1. Instruction format
FNC 00
P
CJ
2. Set data
Operand type
Pn
3. Applicable devices
Bit Devices
Oper-
System User
and
Type
X Y M T C S D .b KnX KnY KnM KnS T
Pn
Explanation of function and operation
1. 16-bit operation (CJ and CJP)
While the command input is ON, CJ or CJP instruction executes a program with a specified label (pointer number).
1) In the case of CJ instruction
Command
which is skipped and is not executed when the command turns ON
Label
Pn
2) In the case of CJP instruction
Command
operation while the command is ON.
which is skipped and is not executed in one operation cycle
Label
Pn
Series
Mnemonic
16-bit Instruction
3 steps CJ
CJP
(FX /FX : n = 0 to 4095, FX
3U 3UC 3G
Digit Specification
User program
Jumps to the pointer while the
command is ON.
User program
User program
User program
Jumps to the pointer only in one
User program
when the command turns ON
User program
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
/FX : n=0 to 2047) (P63 jumps to END instruction.)
3GC
Word Devices
Special
System User Index
Unit
C D R U \G V Z Modify K H
Command
Pn
CJ
input
CJ
Command
Pn Pn
CJP
input
CJP
8 Program Flow – FNC 00 to FNC 09
8.1 FNC 00 – CJ / Conditional Jump
Mnemonic Operation Condition
−
−
Data type
Pointer number
Others
Con- Real Charac-
stant Number ter String
E " "
ON
Executed in every scan.
ON
Executed in one scan.
1
2
3
4
Pointer
P
5
6
7
8
9
10
215