Mitsubishi Electric MELSEC iQ-R Series - Chapter 14 Redundant System Instructions; System Switching

1440
14 REDUNDANT SYSTEM INSTRUCTIONS
14.1 System Switching
14 REDUNDANT SYSTEM INSTRUCTIONS
14.1 System Switching
SP.CONTSW
This instruction switches the systems (control system and standby system) during END processing of the scan where the
instruction is executed.
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Ladder ST
ENO:=SP_CONTSW(EN,s,d);
FBD/LD
Instruction Execution condition
SP.CONTSW
Operand Description Range Data type Data type (label)
(s) Instruction ID number:
A value used to identify a system switching request
-32768 to 32767 16-bit signed binary ANY16
(d) Error completion device:
The device turns on when the system switching operation
failed.
 Bit ANY_BOOL
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)         
(d)         
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s) (d)
EN ENO
ds