Mitsubishi Electric MELSEC iQ-R Series - Checking the Status of a Block

1414
13 SFC PROGRAM INSTRUCTIONS
13.1 SFC Control Instructions
Checking the status of a block
LD, LDI, AND, ANI, OR, ORI [BL]
• LD: Normally open contact, LDI: Normally closed contact
These instructions output the status (active or inactive) of the specified block as the operation result.
• AND: Normally open contact series connection, ANI: Normally closed contact series connection
These instructions perform an AND operation between the status (active or inactive) of the specified block and the previous
operation result(s), and output the operation result.
• OR: Single normally open contact parallel connection, ORI: Single normally closed contact parallel connection
These instructions perform an OR operation between the status (active or inactive) of the specified block and the previous
operation result(s), and output the operation result.
■Execution condition
• The RnCPU and RnENCPU with firmware version "12" or later support these instructions. (Use an engineering tool with version "1.015R" or later.)
• The RnPCPU (process) with firmware version "03" or later supports these instructions. (Use an engineering tool with version "1.020W" or later.)
Ladder ST
Not supported
FBD/LD
Not supported
Instruction Execution condition
LD
LDI
AND
ANI
OR
ORI
Every scan
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s)
(s)
(s)
(s)
(s)
(s)
LD
LDI
AND
ANI
OR
ORI