Mitsubishi MELSEC Q Series, Programming Manual

Page: 313 / 816

6.7 I/O Refresh Instructions
6.7.1 I/O refresh
6-151
6
BA
S
IC
INSTRUCTIONS
RF
S
RFS
(3) Use direct access inputs (DX) or direct access outputs (DY) to refresh inputs (X) or outputs
(Y) in units of 1 point.
O p erat i on E rror
In the following case, an operation error occurs, the error flag (SM0) is turned ON, and the
corresponding error code is stored to SD0.
• The range of n points from the device specified for exceeds the proximate I/O range.
(Error code: 4101)
Program E xam pl e
In the following program, the devices from X100 to X11F, and from Y200 to Y23F are refreshed
when M0 turns ON.
[Structured ladder]
[ST]
IF M0 THEN
RFSP(TRUE,X100,H20);
RFSP(TRUE,Y200,H40);
END_IF;
Direct access in p ut Direct access out p ut
[Program b ased on t h e RFS instruction]
[Program b ased on direct access in p ut and direct access out p ut]
Re f res h es X 0.
Re f res h es Y 2 0.
s