Mitsubishi Electric MELSEC iQ-R Series - SFC Program Instructions

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2 CPU MODULE INSTRUCTIONS
2.9 SFC Program Instructions
2.9 SFC Program Instructions
SFC control instructions
■Checking the status of a step
■Checking the status of a block
■Batch-reading the status of steps
■Starting a block
■Ending a block
Instruction symbol Processing details Reference
LD [S/BL\S] Outputs the status (active or inactive) of the specified step as the operation result. (Normally open
contact instruction)
Page 1411 LD, LDI,
AND, ANI, OR, ORI
[S/BL\S]
LDI [S/BL\S] Outputs the status (active or inactive) of the specified step as the operation result. (Normally closed
contact instruction)
AND [S/BL\S] Performs an AND operation between the status (active or inactive) of the specified step and the
previous operation result(s), and output the operation result. (Normally open contact series
connection instruction)
ANI [S/BL\S] Performs an AND operation between the status (active or inactive) of the specified step and the
previous operation result(s), and output the operation result. (Normally closed contact series
connection instruction)
OR [S/BL\S] Performs an OR operation between the status (active or inactive) of the specified step and the
previous operation result(s), and output the operation result. (Single normally open contact parallel
connection instruction)
ORI [S/BL\S] Performs an OR operation between the status (active or inactive) of the specified step and the
previous operation result(s), and output the operation result. (Single normally closed contact
parallel connection instruction)
Instruction symbol Processing details Reference
LD [BL] Outputs the status (active or inactive) of the specified block as the operation result. (Normally open
contact instruction)
Page 1414 LD, LDI,
AND, ANI, OR, ORI
[BL]
LDI [BL] Outputs the status (active or inactive) of the specified block as the operation result. (Normally
closed contact instruction)
AND [BL] Performs an AND operation between the status (active or inactive) of the specified block and the
previous operation result(s), and output the operation result. (Normally open contact series
connection instruction)
ANI [BL] Performs an AND operation between the status (active or inactive) of the specified block and the
previous operation result(s), and output the operation result. (Normally closed contact series
connection instruction)
OR [BL] Performs an OR operation between the status (active or inactive) of the specified block and the
previous operation result(s), and output the operation result. (Single normally open contact parallel
connection instruction)
ORI [BL] Performs an OR operation between the status (active or inactive) of the specified block and the
previous operation result(s), and output the operation result. (Single normally closed contact
parallel connection instruction)
Instruction symbol Processing details Reference
MOV [K4S/BL\K4S] Batch-reads (in units of 16-bit binary data) the status (active or inactive) of steps in the specified
block, and stores the read data in the specified device.
Page 1416 MOV(P)
[K4S/BL\K4S]
MOVP [K4S/BL\K4S]
DMOV [K8S/BL\K8S] Batch-reads (in units of 32-bit binary data) the status (active or inactive) of steps in the specified
block, and stores the read data in the specified device.
Page 1419 DMOV(P)
[K8S/BL\K8S]
DMOVP [K8S/BL\K8S]
BMOV [K4S/BL\K4S] Batch-reads (in units of the specified number of words starting from the specified step) the status
(active or inactive) of steps in the specified block.
Page 1422 BMOV(P)
[K4S/BL\K4S]
BMOVP [K4S/BL\K4S]
Instruction symbol Processing details Reference
SET [BL] Activates the specified block, and executes a step sequence starting from an initial step. Page 1425 SET [BL]
Instruction symbol Processing details Reference
RST [BL] Deactivates the specified block. Page 1427 RST [BL]