Forced Transition Execute & Cancel Instructions (S, R) [Trn/Blm\Trn] - Mitsubishi Electric MELSEC-Q Series Programming Manual

Forced transition EXECUTE & CANCEL instructions (s, r) [TRn/
BLm\TRn]
QCPU
Programmable controller CPU
Basic High Performance
 
Usable Devices
Internal device File
(System, User) Register
R
Bit Word

(d)
Data Type Programs Using Instructions
Sequence
Program

(d) Device name
Function
■Forced transition EXECUTE instruction (s)
• A specified transition condition in a specified block is forcibly satisfied, and an unconditional transition is executed at the
step which precedes the condition.
• After execution of the instruction, the forced transition status remains effective until a reset instruction is executed.
■Forced transition CANCEL instruction (r)
• Cancels the forced transition setting (designated by SET instruction) at a transition condition, and restores the transition
condition ladder created by the user.
■Specify the transition condition as described below.
Item
In the case of SFC program
In the case of sequence program
Operation Error
Error code Description
4631 When the specified transition condition does not exist or the SFC program is in a wait state
Universal

Link Direct J\
Bit Word
SFC Program
Step

Description
Use "TRn" when specifying the transition condition in the current block.
Use "BLm \TRn" when specifying the transition condition in another block.
Use "BLm \TRn" when executing the forced transition EXECUTE/CANCEL instruction in the sequence program.
When the block number is not specified, specify the block number with the BRSET instruction.
4.4 Controlling SFC Programs by Instructions (SFC Control Instructions)
Process CPU Redundant CPU
 
Intelligent Index Z
Function
Module
U\G
Execution Site
Block
Transition
Condition
 
4 SFC PROGRAM CONFIGURATION
LCPU

Constant Expansion Other
K, H SFC TRn
BLm\TRn
  
Step Transition
Condition
 
4
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