Toshiba PROSEC T1-16S PLC User's Manual - CTi Automation

10. Troubleshooting
292 T1-16S User’s Manual
6F3B0253
Error message and related information Special Meaning and countermeasures
Event Info 1 Info 2 Info 3 device
Sys RAM check err Error Error data Test data S004 In the power-up initialization, an error has
address
S011 detected by system RAM read/write
checking. (Error down and programming
tool cannot be connected)
Replace the unit if the error remains after
power OFF and ON again.
Sys ROM BCC error Illegal
S004 BCC error has been detected in the system
BCC
S010 program in the ROM. (Error down and
programming tool cannot be connected)
Replace the unit if the error remains after
power OFF and ON again.
System power off Power OFF (no error)
System power on Power ON (no error)
Sub-r nesting err Program Address Sub-r No. The nesting of subroutines exceeds 3
type - in the
levels.
block No. block
(Error down)
Correct the program.
WD timer error Address 1 Address 2 S004 The watchdog timer error has occurred.
S01F (Error down)
If the error occurs frequently, replace the
unit.
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