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98 T1/T1S User’s Manual
6. Programming Information
Device/
re
g
ister Name Function
S010 System ROM error (down) ON at error state
S011 System RAM error (down) ON at error state
S012 Pro
g
ram memory error
(down) ON at error state
S013 EEPROM error (down) ON at error state
S014 -Reserved
S015 -Reserved
S016 -Reserved
S017 -Reserved
S018 -Reserved
S019 -Reserved
S01A -Reserved
S01B -Reserved
S01C -Reserved
S01D -Reserved
S01E -Reserved
S01F Watchdo
g
timer error
(down) ON at error state
S020 I/O bus error (down) ON at error state (for T2 I/O modules)
S021 I/O mismatch (down) ON at error state
S022 I/O no answer (down) ON at error state (for T2 I/O modules)
S023 I/O parity error (down) ON at error state (for T2 I/O modules)
S024 -Reserved
S025 -Reserved
S026 -Reserved
S027 -Reserved
S028 -Reserved
S029 -Reserved
S02A -Reserved
S02B -Reserved
S02C -Reserved
S02D -Reserved
S02E -Reserved
S02F -Reserved
NOTE (1) These devices are set by the T1/T1S operating system. These devices are

read only for user .

(2) Devices marked as (down) are set in the ERRO R m ode. Therefore these

devices cannot be used in the user program.
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