STAR
TUP / TROUBLESHOOTING
5-2
Hardware
and Installation User Manual
Be sure that all I/O interface cables are properly connected to I/O
interface
connectors.
All
the configured bases are properly connected, there
are no crimps
or
breaks in the cable, and base addresses are correct.
The cable to the programming unit (where applicable) is secure.
PLC battery polarity is correct.
3.
Initialize PLC.
For
TI535 models —
If
you have not
already done so, disable the PLC battery by turning
off switch 1 on DIP 2. Make certain that a programmed
EPROM/EEPROM
is not installed.
T
urn on power to the PLC.
W
ith the battery
disabled and no programmed EPROM/EEPROM
installed, the TI535 clears memory and enters PROGRAM mode.
Enable
the battery by turning on DIP 2, switch 1. The Battery Good
LED
should light. The TI535 is now initialized.
For
TI525 models —
Turn on power to the PLC. The TI525 is initialized during
power-up.
4. If you intend to use an EPROM/EEPROM, install the
EPROM/EEPROM
according to the instructions given in Chapter 4.
5. Connect the programming device to the RS-232-C/RS-423 port of the
PLC. Place the PLC in PROGRAM mode. If you have installed a
pre-programmed
EPROM/EEPROM, go to step 8.
NOTE
The PLC should be in PROGRAM mode at this
point,
not in RUN mode. Instructions that you enter
in the RLL program
are executed immediately if the
PLC
is in RUN mode.
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