110
4630
Startup was executed at a block in the
SFC program that was already started
up.
Read common information of the error
using the peripheral device, check error
step corresponding to its numerical
value (program error location), and
correct the problem.
QnA
4631
• Startup was attempted at the step
that does not exist in the SFC
program.
Or, the step that does not exist in the
SFC program was specified for end.
• Forced transition was executed
based on the transition condition that
does not exit in the SFC program.
Or, the transition condition for forced
transition that does not exit in the
SFC program was canceled.
• Read the common information of the
error using the peripheral device, and
check and correct the error step
corresponding to that value (program
error location).
• Turn ON if the special relay SM321 is
OFF.
QnA
4632
There were too many simultaneous
active steps in blocks that can be
designated by the SFC program.
Read common information of the error
using the peripheral device, check error
step corresponding to its numerical
value (program error location), and
correct the problem.
QnA
4633
There were too many simultaneous
active steps in all blocks that can be
designated.
QnA
Error
Code
(SD0)
Error Contents and Cause
Corrective Action
Corresponding
CPU