7 APPLICATION INSTRUCTIONS
7.27 Module Access Instructions
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7
7.27 Module Access Instructions
Performing I/O refresh
RFS(P)
These instructions refresh the n points of data from the specified device, and import external inputs or outputs data to the
output module.
■Execution condition
■Descriptions, ranges, and data types
*1 Only labels assigned to devices (X, Y) can be used.
■Applicable devices
*1 Only X and Y can be used.
Ladder ST
ENO:=RFS(EN,s,n);
ENO:=RFSP(EN,s,n);
FBD/LD
Instruction Execution condition
RFS
RFSP
Operand Description Range Data type Data type (label)
(s) Start device to be refreshed Bit ANY_BOOL
*1
(n) Number of refreshed points 1 to 4096 16-bit unsigned binary ANY16
EN Execution condition Bit BOOL
ENO Execution result Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s)
*1
(n)
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant)
(Process)