Analog CHARMs LED

The following table describes the meaning of the colors and patterns associated with the single LED on the analog CHARMs:

AI 4-20 mA HART CHARM
AI 0-10 VDC isolated CHARM
AO 4-20 mA HART CHARM
RTD / Resistance input CHARM
Thermocouple / mV input CHARM
I.S. AI 4-20 mA HART CHARM
I.S. AO 4-20 mA HART CHARM
I.S. RTD / Resistance input CHARM
I.S. Thermocouple / mV input CHARM

Table: Analog CHARMs LEDs
LED color and pattern	Description and corrective action
Green (continuous)	The channel and CHARM status is good and the CHARM is configured. Note If a bad configuration is downloaded to a successfully configured CHARM, the CHARM rejects the bad configuration and remains configured with the good configuration. In this case the LED pattern is Green (continuous).
Green (flashing twice per second)	The CHARM has a connected device but is not configured. If DeltaV Diagnostics displays BAD status for this CHARM, a configuration error, such as a configuration mismatch has occurred. If DeltaV Diagnostics displays GOOD status for the CHARM, the CHARM has not been configured. In this case, configure the CHARM in DeltaV Explorer. Note This pattern (green LED flashing twice per second) only occurs if the CHARM is uninstalled and a configuration change is downloaded. If the CHARM is not uninstalled and a configuration change is downloaded, this pattern does not occur.
Green (flashing ten times per second)	A user has issued an identify CHARM command from the DeltaV Diagnostics application. This is not a fault and no action is required.
Red (continuous)	No communications on the bus or no address. If this pattern is seen on an individual CHARM, replace the CHARM. If this pattern is seen on a group of 12 CHARMs, ensure that the correct address plug is installed. If this pattern is seen on all CHARMs, ensure that the CHARM I/O card is functioning correctly. If this pattern is seen on all CHARMs, the CIOC could be in simulate mode. If the CIOC is in simulate mode, no corrective action is required.
Red (continuous)	The connectors on the CHARM Column Extenders are crossed.
Red (flashing twice per second)	Channel fault or hardware error. Check wiring and associated field device. If wiring and device are correct, replace the CHARM. This pattern can also occur if an unconfigured CHARM with no connected device is installed onto the baseplate.
Red (flashing ten times per second)	Duplicate address. Check all CHARMs baseplates for a duplicate address plug.
Green then red flashing four times per second	A CHARM fault (such as a bad address or a faulty CHARM bus) exists that does not affect the channel status. If this pattern is seen on an individual CHARM, replace the CHARM. If this pattern is seen on a group of 12 CHARMs, ensure that the correct address plug is installed. If this pattern is seen on all CHARMs, ensure that the CHARM I/O card is functioning correctly.
Green and red alternating two times per second	The CHARM is being upgraded or is in upgrade mode.
Green then red flashing briefly once every 1.5 seconds (for output CHARMs only)	The CIOC has placed the CHARM in a fault state.
No colors	The CHARM is unpowered or not functioning. If all CHARMs' LEDs are not showing a color, check the power connections. If the LEDs on all the CHARMs on a baseplate are not showing a color, check the connection to the baseplate. If the LED on one CHARM is not showing a color, replace the CHARM.