Specifications

App - 65
Error Code
(SD0) *
1
Error Contents and Cause Corrective Action
Applicable
CPU
4210 The CALL instruction is executed, but there is no destination pointer.
4211 There is no RET instruction in the executed subroutine program.
4212
There is RET instruction before FEND instruction in the main
program.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
4213 More than 16 nesting levels are programmed. Set the nesting levels to16 or less.
4220
Though an interrupt input occurred, the corresponding interrupt
pointer does not exist.
4221 IRET instruction does not exist in the executed interrupt program.
4223
IRET instruction exists before the FEND instruction of the main
program.
4230 The number of CHK and CHKEND instructions is not equal.
4231 The number of IX and IXEND instructions is not equal.
4235
The configuration of the check conditions for CHK instruction is
incorrect.
Alternatively, CHK instruction has been used in a low speed
execution type program.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
4300
The designation of a MELSECNET/ MINI-S3 master module control
instruction is incorrect.
4301 The designation of an AD57/AD58 control instruction is incorrect.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
QnA
4400 There are no SFCP and SFCPEND instruction in the SFC program.
4410
The block number designated in the SFC program exceeds the
maximum setting value.
4411 The block number is overlapped and designated in the SFC program.
4420 The step numbers designated in the SFC program are 511 or more.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
4421
Total number of steps in all SFC programs exceeds the maximum
value.
Reduce total number of steps to below the maximum value.
4422 The step number is overlapped and designated in the SFC program.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
4500
The number of BLOCK and BEND instructions in the SFC program is
not equal.
4501
The configuration of the STEP* to TRAN* to TSET to SEND
instructions in the SFC program is incorrect.
4502 There is no STEPI* instruction in the block of the SFC program.
4503 There is no step designated by TSET instruction in the SFC program.
4504
There is no step designated by TAND instruction in the SFC
program.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
4600 The SFC program contains data that cannot be used.
4601 Over the device range that can be designated in the SFC program.
4602
The START instruction in the SFC program is executed after the
END instruction.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
The program is automatically made the initial start.
4610
The active step information at proceeding start in the SFC program is
incorrect.
4611
The key-switch was reset during RUN when the proceeding start was
designated in the SFC program.
4620
Startup was attempted at the block that has already started up in the
SFC program.
4621
Startup was attempted at the block that does not exist in the SFC
program.
4630
Startup was executed at the step that has already started up in the
SFC program.
4631
Startup was attempted at the step that does not exist in the SFC
program.
4632
There were too many simultaneous active steps in the blocks that
can be designated by the SFC program.
4633
There were too many simultaneous active steps in all blocks that can
be designated.
Read the common information of the error using a
peripheral device, check the error step corresponding to its
numerical value (program error location), and correct the
problem.
*1: Characters in parentheses ( ) indicate the special register numbers where each information is being stored.