Omron CP1L CPU Getting Started Manual page 18

Indicator Statuses
This section describes the operating statuses of CP1L as displayed by the
operation indicators.
POWER
(Green)
RUN
(Green)
ERR/ALM
(Red)
INH
(Yellow)
PRPHL
(Yellow)
BKUP
(Yellow)
Lit Power is ON.
Not lit Power is OFF.
Lit CP1L is executing a program in either RUN or MONITOR mode.
Not lit Operation is stopped in PROGRAM mode, or stopped due to a fatal error.
Lit A fatal error (including FALS execution) or a hardware error (WDT error)
has occurred.
CP1L operation will stop, and all outputs will be turned OFF.
Blinking A non-fatal error (including FAL execution) has occurred.
CP1L operation will continue.
Not lit Operation normal.
Lit The output OFF bit (A500.15) has turned ON.
All outputs will be turned OFF.
Not lit Operation normal.
Blinking Communication (either sending or receiving) is active on the peripheral
USB port.
Not lit Any other state.
Lit • User program, parameter, or data memory is being written to or read
from the built-in flash memory (backup memory).
• User program, parameter, data memory, DM defaults, or comment
memory is being written to or read from the memory cassette.
• User programs, parameters, and data memory are being restored
following a PLC power-on.
Note: Do not turn the PLC power supply OFF while this indicator is lit.
Not lit Any other state.
1-2 Part Names and Functions
SYSMAC CP1L Getting Started Guide
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