Ydoa Diagnostics; Ydoa Status Leds; Output Leds - GE Mark VIeS System Manual

6.1.5 YDOA Diagnostics

The I/O pack performs the following self-diagnostic tests:
• A power-up self-test that includes checks of RAM, flash memory, Ethernet ports, and processor board hardware
• Continuous monitoring of the internal power supplies for correct operation
• A check of the electronic ID information from the terminal board, acquisition board, and processor board to confirm that
the hardware set matches, followed by a check that the application code loaded from flash memory is correct for the
hardware set.
• A comparison is made between the commanded state of each relay drive and the feedback from the command output
circuit.
• Relay board specific feedback is read by the pack and processed. The information varies depending on the relay board
type. Refer to relay terminal board documentation for feedback specifics.
Details of the individual diagnostics are available in the ToolboxST application. The diagnostic signals can be individually
latched, and then reset with the RSTDIAG signal if they go healthy.

6.1.5.1 YDOA Status LEDs

Color I/O Pack Label
Yellow 1 – 12
Note For more information, refer to the section
136 GEH-6855_Vol_II

Output LEDs

Description
Provided for each output to indicate the presence of a command to energize the
relay
Processor LEDs.
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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