Справочник Пользователя для Mitsubishi Electronics 13JW55

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4.6  
MC 
 Master Control 
 
(Start) 
 MCR    Master Control Reset 
(End) 
Project name 
QB-8 
Program name 
MAIN 
 
 
X7
X2
X3
NO
M98
Y71
MCR
NO
Y70
MC
0
3
5
7
 
 
•  The above program is a basic one. 
• 
MC  N   
M   
to
MCR N   
(indicated as "MC to MCR" hereafter.)
  The available nesting (N) numbers for "MC to MCR" are from N0 and N14. 
•  The scan time skipped by "MC to MCR" hardly changes. 
The device status of the program skipped by "MC to MCR" becomes as follows; 
All the devices in the OUT instruction are turned off. 
The devices in the SET, RST, and SFT instructions, the counter, and retentive 
timer keep their statuses. 
The 100ms timer and 10ms timer are reset to 0. 
 
Application
 
• The instructions can be used for a program for switching between manual and 
automatic operations. (Refer to Ladder example.) 
 
Applicable device 
Internal device 
(system or 
user) 
File 
register
MELSECNET/
10 (H) Direct 
Jn\ 
Index 
register
Constant 
Pointer 
Level 
 
Bit Word  R  Bit Word
Intelligent 
function 
module 
Un\G 
K H P  I  N
Digit 
Number of basic 
steps 
 
 
 
 
 
 
 
 
 
 
 
MC
MCR
n
n
D
 
D
 
 
 
 
 
 
 
 
 
 
 
 
1
The number of basic steps of the MC instruction is two, and that of the MCR instruction is one.