The Enabler PCI card has a number of LED indicators which can help you diagnose problems.
In normal operation, the Service LED should be off, the Heartbeat LED should flash once per second, and the channel transmit and receive LEDs for connected ports should both be flashing. Depending on your PCI card revision, you may only have 4 port LEDs.
Heartbeat LED (Red)
This LED indicates that the Enabler card CPU is running. It should normally flash on for one second, then off for one second.
During a firmware download the heartbeat LED will stop blinking.
If the heartbeat LED is turned full on, then the card may need a reset. Briefly short the two test header pins nearest the DB25 connector (pins 1 and 2) to reset the card. This is not usually required in the field.
Port Transmit and Receive LEDs (Red and Greeen)
The port 1-4 LEDs indicate when there is communication on each of the 4 Enabler serial ports.
Red Transmit LED: Normally, any port that is configured with pumps in Enabler, should have at least a blinking red transmit LED. This indicates that the Enabler is sending messages to check the pumps.
Green Receive LED: When communication is established with pumps, the receive LED will flash to show that the Enabler is receiving data. If this LED is not flashing then Enabler is not receiving messages back from the pumps. This could be due to wrong configuration, wiring, pump turned off etc. See our Communications Fault Finding and Pump Configuration pages.
If the green receive LED is stuck on then there are two likely causes:
- The card has been damaged by a surge or lightning strike
- The port is connected to a PC running a pump simulator, and the simulator is not running. In this situation some PCs such as Dell incorrectly turn on their transmit pin, which in turn turns on the Enabler receive LED.
Port 5 IFSF LEDs (PCI Revision 3 only)
If you have a PCI revision 3 card, then the card will have a fifth pair of LEDs for showing IFSF (LON) activity. Normally, both LEDs will flash slowly, indicating heartbeats being sent around the network every ten seconds by each device. When there is activity, both LEDs will flash rapidly.
If the Green Port 5 LED is not flashing, then the pumps are not communicating to Enabler at all - check the pump configuration and wiring. Unlike other protocols, the green light should flash regardless of Enabler configuration.
If the Red Port 5 LED is not flashing, Enabler is not configured for IFSF operation.
Service LED (Green)
The green LED directly next to the DB25 connector is called the service LED.
This LED should not light up during normal operation. It turns full on during Enabler firmware download, and flashes briefly at reset.
If the LED flashes repeatedly every few seconds then the Enabler card is continuously resetting. The most common reason for this is that the firmware in the card does not support one of the pump protocols that has been configured. In rare cases it could also indicate a bug or hardware problem.
If the service LED is stuck on, the card is no longer working - at the least, the firmware is corrupt.
You may need to update the Enabler card with new firmware to support the protocols you are using.