Block Stop And Restart Instructions (Pause, Rstart) [Blm] - Mitsubishi Electric MELSEC-Q Series Programming Manual

Block STOP and RESTART instructions (PAUSE, RSTART) [BLm]

QCPU
Programmable controller CPU
Basic
*1

*1 The serial number (first five digits) shall be 04122 or later.
Usable Devices
Internal device
(System, User)
Bit Word
(d) 
Data Type
(d) Device name
Function
■Block STOP instruction (PAUSE)
• Executes a temporary stop at the specified block.
• As shown below, processing varies, depending on when the stop occurs and on the coil output status setting (designated
by OUT instruction).
Setting of Operation
Output Mode Output at
at Block Stop Block Stop
in PLC (SM325)
Parameter
Turns OFF OFF
(coil output OFF) (coil output OFF)
Remains ON
(coil output held)
4 SFC PROGRAM CONFIGURATION
92
4.4 Controlling SFC Programs by Instructions (SFC Control Instructions)
High Performance Universal
 
File Link Direct J\
Register
R
Bit
Programs Using Instructions
Sequence SFC Program
Program
Step
 
Status of Operation
STOP-time
Active step other than
Mode Bit
held step (including
HOLD step whose
transition condition is
not satisfied)
OFF or no • Immediately after a STOP
setting request is made, the coil
(immediate output of the operation
stop) output is turned OFF and the
block is stopped.
• The status remains active.
ON • Normal operation is
(STOP after performed until the transition
transition) condition is satisfied.
• When the transition
condition is satisfied, the end
processing of the
corresponding step is
performed. At the same
time, the transition
destination step becomes
active and the block is
stopped before execution of
the operation output.
Process CPU

Intelligent
Function
Module
U\G
Word
Transition
Condition

Held step
Coil HOLD step
(SC)
• Immediately after
a STOP request is
made, the coil
output of the
operation output
is turned OFF and
the block is
stopped.
• The status
becomes inactive.
LCPU
Redundant CPU
 
Index Z Constant Expansion
K, H SFC
 
Execution Site
Block Step
 
*1
Operation HOLD
step (without
transition check)
(SE)
• Immediately after a STOP request is
made, the coil output of the operation
output is turned OFF and the block is
stopped.
• The status remains active.
Other
BLm

Transition
Condition

Operation HOLD
step (with
transition check)
(ST)