Section 2 NS Series Functions 2-20 Special Functions
2-466
NS Series Programming Manual
Error Information Lists
This section shows the PLC error information that is displayed on the Error Information Screen. The
display data details and type depend on the connected PLC. Refer to the manual for the connected
PLC for countermeasures for PLC errors.
Types of error information displayed CS-series PLCs C-series PLCs
System error (FALS)
Too many I/O Units
×
I/O settings error
×
I/O bus error *** (***: rack number) (See note.)
No END instruction
×
Memory error
Unit No. duplication error
×
Rack No. duplication error
×
INNER board error
×
I/O points exceeded
×
Cycle time exceeded
×
Program error
×
Fatal errors
Unit No. duplication error
×
CPU Bus Unit error
PLC link transfer error
×
Cycle time exceeded
×
I/O verification error
Battery error
System error FAL *** (***: FAL No.)
Interrupt task error
×
Basic I/O error
×
PLC Setup error
×
Inner Board compatibility error
×
CPU Bus Unit error
×
SYSMAC BUS error *** (***: No. Of Master Unit with error) (See note.)
CPU Bus Unit setting error
×
Nonfatal errors
Special I/O setting error
×
: Displayed, ×: Not displayed (or does not exist on corresponding PLC)
Note: The numbers indicated by *** are not displayed for CS-series or CJ-series PLCs.
R
R
R
e
e
e
f
f
f
e
e
e
r
r
r
e
e
e
n
n
n
c
c
c
e
e
e
♦
Numbers are not displayed for FAL or FALS errors.
Check the number on the PLC.
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