Emerson DeltaV™ Electronic Marshalling CHARMs

CHARMs can be partially ejected to a locked position that

disconnects the field wiring from the system to perform

field maintenance actions or to remove power to a field

device. Activating the CHARM latch ejects the CHARM to the

detent position. Closing the latch locks the CHARM in place

and isolates the field wiring for field work.

Baseplate extenders and cables provide great flexibility to

the CHARM installation in existing cabinets or in custom

enclosures. Cables are redundant, each carrying 24V

DC field power, 6.3V DC CHARM power, and one of the

communication busses.

Bus termination provides added robustness for the

communication bus and is installed at the end of the

physical bus.

Label features are available to identify channel usage and

Baseplate identification to help with maintenance.

CHARMs can be added to any existing baseplate

position and autosensed online. Additional CIOCs can be

added online.