KEYENCE Visual KV Series - Manual (Page 113)

2.4 Instruction Details
1
2
3-89 Chapter 2 Instructions
MC: Master Control
MCR: Master Control
Reset
Selects ON/OFF status of relay coils, timers,
or counters set before MCR instruction.
Used in pairs with MC instruction to end the
execution of MC instruction.
LDB
4
ANB
5
ANL
2
ANL
2
MCR
MC
FUN
FUN
0000 MC
MCR
0001 0500
0501
Example
Coding
Description
• When 0000 is OFF, both 0500 and 0501 do not turn ON, even if 0001 is turned
ON.
• When 0000 is ON, 0500 turns ON and 0501 turns OFF as soon as 0001 is turned
ON.
• Regard the function of MC-MCR instructions as "power switch" or "main switch".
• When the input relay for MC is OFF, the instructions entered between MC and
MCR instructions function as follows:
Note: MC-MCR instructions cannot be used in the following configuration.
1. Nesting 2. Improper combination with STP-STE
instructions
➮ "STP, STE instructions" (p. 3-114)
Operands
Key operation
Line No. Instruction Operand
0000 LD 0000
0001 MC
0002 LD 0001
0003 OUT 0500
0004 OUB 0501
0005 MCR
MC
MC
MCR
MCR
STP
x x x x
MC
STE
MCR
FUN FUN
LDB
4
ANB
5
ANL
2
ANL
2
ENT
R-SRCH
ENT
R-SRCH
ENT
R-SRCH
ENT
R-SRCH
:
:
MC / MCR
Instructions Function
OUT and OUB Corresponding relay is OFF
TMR, TMH, and TMS Timer is reset
C, SFT, KEEP, SET, RES, and CTH Previous status is retained
Other instructions such as TMIN Instruction is not executed.
KVNKA Chap 02_4aP.p65 08.3.11, 11:58 AM 89