Honeywell ML200 Series Installation And Commissioning Manual page 48

Chapter 3 - Plan and Install MLPLC
LED Description
Specifies the operation status of the CPU module.
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RUN/STOP
LED
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REM LED ON (YELLOW): 'Remote enabled' in case 'REMOTE' switch is 'ON'.
OFF: 'Remote disabled' in case 'REMOTE' switch is 'OFF'.
ERR LED ON (RED): Error has occurred and CPU cannot operate normally.
OFF: Normal operation.
PS LED
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(Programmable
Status)
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BAT LED ON (Red): Battery voltage is low.
OFF: Normal operation.
CHK LED
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Green light: Implies the CPU operation is in 'RUN' mode either by any of
the following:
'RUN/STOP' switch in CPU set to RUN mode.
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REMOTE 'RUN' operation through SoftMaster even when the local
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switch is on 'STOP' mode.
Red light: The CPU operation is in 'STOP' mode either by any of the
following
RUN/STOP switch in CPU set to STOP mode.
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REMOTE 'STOP' operation through SoftMaster even when the local
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switch is in 'RUN' mode.
Red Blink: Warning or error during 'STOP' operation (if an error occurs,
stop the ongoing operation).
Red ON:
'User assigned flag' is 'ON'.
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Operating in the error state by 'operation proceeding in the error'
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setting.
Module is detached or new module is installed in the state where
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'M.XCHG' switch is 'ON'.
OFF: Normal operation
Red ON:
Setting is different from standard setting (it is possible to add/delete
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[clear] by parameter).
'Module change' switch is set as 'Module change'.
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Operating in 'DEBUG mode'.
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'Forced ON' setting state.
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'Fault mask', 'SKIP' flag is set.
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Warning occurs during operation.
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