Basic Function Instruction
6 - 12
FUN 0
MC
MATER CONTROL LOOP START
FUN 0
MC
Symbol
Operand
N: Master Control Loop number (N=0~127)
the number N cannot be used repeatedly.
Description
● There are a total of 128 MC loops (N=0~127). Every Master Control Start instruction, MC N, must
correspond to a Master Control End instruction, MCE N, which has the same loop number as MC N.
They must always be used in pairs and you should also make sure that the MCE N instruction is after the
MC N instruction.
● When the Master Control input "EN/" is 1, then this MC N instruction will not be executed, as it does not
exist.
● When the Master Control input "EN/" is 0, the master control loop is active, the area between the MC N
and MCE N is called the Master Control active loop area. All the status of OUT coils or Timers within
Master Control active loop area will be cleared to 0. Other instructions will not be executed.
Example
Ladder Diagram Key Operations Mnemonic Codes
0.
MC
1
X0
EN
X1
1S
T201
10
X2
T201
1.
MCE
1
X1
Y2
Y1
Y0
OUT
ORG
ORG
OUT
ORG
ORG
OUT
ORG
ORG
FUN
N
：
ORG
OUT
ORG
T201 PV
：
ORG
OUT
FUN
N
：
ORG
OUT
X
0
1
X
Y
X
T
Y
1
1
X
Y
0
1
0
2
10
201
1
1
2
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