1-2 Part Names and Functions
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1
20 SYSMAC CP1L/CP1E Introduction Manual
CP1L/CP1E Overview
■Indicator Statuses
This section describes the operating statuses of CP1L and CP1E as displayed by
the operation indicators.
POWER
(Green)
Lit Power is ON.
Not lit Power is OFF.
RUN
(Green)
Lit CP1L/CP1E 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.
ERR/ALM
(Red)
Lit A fatal error (including FALS execution) or a hardware error (WDT error)
has occurred.
CP1L/CP1E operation will stop, and all outputs will be turned OFF.
Blinking A non-fatal error (including FAL execution) has occurred.
CP1L/CP1E operation will continue.
Not lit Operation normal.
INH
(Yellow)
Lit The output OFF bit (A500.15) has turned ON.
All outputs will be turned OFF.
Not lit Operation normal.
PRPHL
(Yellow)
Blinking Communication (either sending or receiving) is active on the peripheral
USB port.
Not lit Any other state.
BKUP
(Yellow)
Lit
• CP1L CPU units
• 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.
• CP1E CPU units
The user program, parameters, or specified DM Area words are being
written to the backup memory (built-in EEPROM).
Note: Do not turn the PLC power supply OFF while this indicator is lit.
Not lit Any other state.
POWER
RUN
INH
PRPHL
BKUP
ERR/ALM