Generating A Continuation Error - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Generating a continuation error

PALERT(P)
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
This instruction generates a continuation error in the CPU module.
Ladder
(s)
FBD/LD
EN ENO
s
■Execution condition
Instruction
PALERT
PALERTP
Setting data
■Description, range, data type
Operand Description
(s) Data to be stored in the detailed information 2 of the error
code 1810H or device number where the data is stored
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, J\
SM, F, B, SB,
FX, FY
(s)  
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.
RnSFCPU RnSFCPU
(Standard) (Safety)
Execution condition
Word
T, ST, C, D, W, U\G, J\,
SD, SW, FD, R, U3E\(H)G
ZR, RD
 
ST
ENO:=PALERT(EN,s);
ENO:=PALERTP(EN,s);
Range Data type
-32768 to 32767 16-bit signed binary

Bit

Bit
Double word Indirect
Z LT, LST, LZ
LC
  
7 APPLICATION INSTRUCTIONS
7.7 Debugging and Failure Diagnostic Instructions
Data type (label)
ANY16
BOOL
BOOL
Constant Others
specification
K, H E $
    
7
629