Troubleshooting
9
PLB-CF10 CardFrame
Troubleshooting
Front Device Features
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Power LED
- If the power LED is not on, check the power cord and power switch
(PLB-CF10) or check the external power supply (PLB-CF2).
!
Diag LED
- This LED indicates the state of all cards in the PLB-CF2 or PLB-CF10. The
Diag light will flash on briefly when a card is first plugged in or powered up. If a card
causes an error, the Diag LED will either flash on and off continually or it will remain on
continually. Remove the cards one by one until you locate the faulty card.
Rear Device Features
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Data LED
- This LED is a 'window' into the network, flashing on briefly whenever a
packet is sent over the network by the MCU card or by any device on the PHASTLink
network.
In normal operation, the Data LED should be off for a larger percentage of time than it is
On.
If the Data LED is on continually, there may be a problem with a hub-to-hub connection
(e.g., Hub In connected to Hub In, or a bad cable). A looped cable connecting two
PHASTLink ports or a faulty cable can also cause the Data LED to remain on
continually. Remove each cable one by one, then each card one by one until the faulty
cable or card is located. If all PHASTLink cables, hub-to-hub cables, and cards are
removed and the Data LED remains on, the PLB-CF2 or PLB-CF10 may be at fault -
contact PHAST Tech Support.
If the Data LED is not on continually but is on for a larger percentage of time than it is
off, it may indicate a faulty device or card, and the condition may slow down network
response.
!
Link LED
- The Link LED on each card indicates when it sends a message over the
network. If a card's Link LED is on continually, that card may be causing the problem.
For example, this could be caused by a contact card with an intermittent short or by a
faulty contact sensor. If no cards are at fault, unplug each PHASTLink cable run until the
suspect cable is located
