Forced Transition Check Instruction (Ld, Ldi, And, Ani, Or, Ori) - Mitsubishi MELSEC-Q Series Programming Manual

4 SFC PROGRAM CONFIGURATION

4.4.2 Forced transition check instruction (LD, LDI, AND, ANI, OR, ORI)

Internal Device
File
(System, User)
Register
R
Bit Word
S
[When step in current block is specified]
TRn "n" is the transition condition No.
LD TRn
TRn
LDI TRn
AND TRn
ANI TRn
OR TRn
TRn
ORI TRn
TRn
[Function]
(1) Checks whether or not the specified transition condition of the specified block is specified for
forced transition by the forced transition EXECUTE instruction (SET BLm\TRn).
(2) The contact status changes as described below depending on whether the specified transition
condition is specified for a forced transition or not.
When specified for forced
transition
When not specified for forced
transition
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Usable Devices
Link Direct
Intelligent
J
\ Function Index
Module Z
Bit Word
U \G
TRn
TRn
Data
Expansion
Constant Other
Type
SFC
K, H TRn
BLm/TRn
Device
name
[When step in another block is specified]
[When step is specified in sequence program]
BLm\TRn
LD BLm\TRn
BLm\TRn
LDI BLm\TRn
AND BLm\TRn
ANI BLm\TRn
OR BLm\TRn
BLm\TRn
ORI BLm\TRn
BLm\TRn
Contact of N/O Contact
Instruction
ON
OFF
Programs Using Instructions
SFC Program
Sequence
Block Step
Program
Transition
Step
Condition
"m" is the block No., "n" is the transition
condition No.
BLm\TRn
BLm\TRn
Contact of N/C Contact
Instruction
OFF
ON
Execution Site
Transition
Condition
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