Thinget XC Series User Manual

Basic SFC Functions
4-9. 【MCS】,【MCR】
Mnemonic
Function Format and Devices
MCS
(Master control)
Denotes the start
of a master control
block
Y0
Devices
: None
MCR
(Master control
Reset)
control
block
Denotes the end of
a master
Y0
Devices
: None
X1 X2
M2
M3M1
Y0
Y1
Y2
Description
Description
Mnemonic
z After the execution of an MCS instruction, the bus line（LD、LDI）shifts
to a point after the MCS instruction. An MCR instruction returns this to
the original bus line.
z MCS、MCR instructions should use in pair.
z The bus line could be used nesting. Between the matched MCS、MCR
instructions use matched MCS、 MCR instructions. The nest level
increase with the using of MCS instruction. The max nest level is 10.
When executing MCR instruction, go back to the upper bus line.
z When use flow program, bus line management could only be used in the
same flow. When end some flow, it must go back to the main bus line.
LD X1
MCS
LD X2
OUT Y0
LD M1
MCS
LD M3
OUT Y1
LD M2
OUT Y2
MCR
Bus line starts
MCR
Bus line nest
Bus line back
57

Thinget XC Series Specifications

General

Brand	Thinget
Model	XC Series
Category	Controller
Language	English