0-10V Photocell Troubleshooting

If an analog photocell (i.e. a 3-wire 0-10V photocell, not a Cresnet or internal occupancy sensor photocell) is defined in the ShowRunnerCLC™ configuration but you are not receiving a reading when looking at the photocell in XPanel or running the sr show photocell command, perform the following troubleshooting steps:

1. Verify the ShowRunnerCLC™ configuration:
   1. ID should be a number without quotes matching the dictionary ID (the quoted number at the top of the photocell definition)
   2. Model can be "GLS-LDL", "GLS-LOL", "GLS-LCL", or "GLS-LEXT" for non-system sensors
2. Verify the photocell is connected to the correct device (compare serial numbers to ensure the IP-ID, CID, and model match of the host device matches the configuration)
3. Verify wiring at the JBOX – should use ports 4, 5, and 6 corresponding to 24V (red at the photocell), signal (orange), and ground (black)
4. Verify the JBOX is outputting 24V and that you are seeing a reading at the JBOX by (disconnect the signal wire and measure voltage to ground)
   1. You should see a sensor reading between 10V and 0V, with 0V being the reading when it is covered up
   2. If no reading at the JBOX, move to the photocell and measure 24V off the cable from the JBOX and measure signal directly off the orange lead at the photocell
   3. If you get a reading at the photocell but not at the JBOX then there is likely a wiring issue, i.e. wrong cable connected or the cable is damaged in the field
5. Check the jumpers/switch at the photocell to make sure the reading is in the correct range (the options are low range open loop ~3-300, mid range open loop ~30-3000, high range open loop ~3000-30000, and closed loop: default is mid range open loop)