Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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7 APPLICATION INSTRUCTIONS
7.7 Debugging and Failure Diagnostic Instructions
629
7
Generating a continuation error
PALERT(P)
This instruction generates a continuation error in the CPU module.
■
Execution condition
Setting data
■
Description, range, data type
■
Applicable devices
Processing details
• This instruction generates a continuation error (error code: 1810H) in the CPU module. When the instruction is executed,
SM0 turns on and the ERROR LED of the CPU module turns on. SM1 does not turn on.
• Data (16-bit signed binary) specified by (s) is stored in the detailed information 2 of the error code 1810H.
• The PALERT(P) instruction is useful for debugging since a continuation error can be simulated at the start-
up of the system. The instruction execution point can be identified by checking the detailed information 2 of
the error code 1810H.
Operation error
There is no operation error, except the error (error code: 1810H) which occurs by executing the PALERT(P) instruction.
Ladder ST
ENO:=PALERT(EN,s);
ENO:=PALERTP(EN,s);
FBD/LD
Instruction Execution condition
PALERT
PALERTP
Operand Description Range Data type Data type (label)
(s) Data to be stored in the detailed information 2 of the error
code 1810H or device number where the data is stored -32768 to 32767 16-bit signed 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)            
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(s)
EN ENO
s