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6F3B0250
Basic Hardware and Function
97
6. Programming Information
Special devices and registers (S/SW)
The special devices (S) and special registers (SW) are used for special purposes. See
list below.
Device/
re
g
ister
Name Function
S000 0: Initialization4: HOLD mode
S001 T1/T1S operation mode 1: HALT mode 6: ERROR mode
S002 2: RUN mode
S003 3: RUN-F mode
S004 CPU error (down) ON at error state (related to SW01)
S005 I/O error (down) ON at error state (related to SW02)
S006 Pro
g
ram error (down) ON at error state (related to SW03)
S007 EEPROM alarm (alarm) ON when EEPROM write exceeds 100,000 times
S008 Fixed-time scan time-over
(alarm)
ON when actual scan time is lon
g
er than the settin
g
time
as fixed-time scan
S009
-
Reserved
S00A Clock/calendar error
(alarm)
ON when clock/calendar data is ille
g
al (T1S only)
S00B
-
Reserved
S00C
-
Reserved
S00D TL-F10 error (alarm) ON when TOSLINE-F10 transmission error occurs
S00E
-
Reserved
S00F Retentive data invalid
(alarm)
ON when retentive data in RAM are invalid
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 ERROR mode. Therefore these
devices cannot be used in the user program.
(3) Devices marked as (alarm) are set in the normal operation mode. These
devices can be used in the user program.
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