Understanding the CPU LED Indicators
The CPU module, labeled RMC100, has five LEDs. Each is labeled as follows:
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CPU Status |
This LED can be in the following states: |
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Red |
On power up, this LED will be red until the firmware is started. |
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Solid Green |
This indicates that the module is running correctly. |
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Flashing Green |
This indicates that the Flash is being written to or erased. Do not power down the RMC while the LED is in this state, or the Flash write will fail. |
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In 0 |
When this LED is RED, the CPU digital input 0 is a logical 1. |
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In 1 |
When this LED is RED, the CPU digital input 1 is a logical 1. |
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Out 0 |
When this LED is RED, the CPU digital output 0 is conducting. |
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Out 1 |
When this LED is RED, the CPU digital output 1 is conducting. |
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For further details on the CPU digital inputs and outputs, see Using the CPU Digital I/O.
Other Module LED Indicators
Many of the additional RMC modules have LED indicators. Look in the table of contents or index for the appropriate module's LED indicator topic.
Copyright (c) 1997-2015 by Delta Computer Systems, Inc.