Mitsubishi Electric MELSEC FX Series - 5.12 MC, MCR

5 Basic Instruction
5.12 MC, MCR
95
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
5.12 MC, MCR
Outline
When MC instruction is executed, the bus line (LD or LDI point) is moved to a position after MC contact.
The bus line can be returned to the original position by MCR instruction.
By changing a device (Y or M) number, MC instruction can be used as many times as necessary.
If a same device number is used twice, however, it results in the double coil operation in the same way as
OUT instruction.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Execution
form
Expression in each language
Structured ladder ST
MC Continuous MC(EN,n,d);
MCR Continuous MCR(EN,n);
Variable Description Data type
Input
variable
EN Execution condition
MC: Bit
MCR: Always TRUE
Nesting level
When adopting a nesting structure, use it in order of 0 → 1 →
2 → 3 → 4 → 5 → 6 → 7. If not adopting a nesting structure,
it is always "0".
ANY16
Output
variable
ENO Execution state Bit
Device or variable of common connection contact Bit
Instruction
Bit Devices Word Devices Others
System User Digit Specification
System
User
Special
Unit
Index Constant
Real
Number
Character
String
Pointer
XY M TCS
D.b
KnX KnY KnM KnS T C D R
U\G
VZModifier K H E
""
P
MC
z
S1
MCR There are no applicable devices.
MC
EN ENO
d
n
MCR
EN ENO
n