Introduction
DeltaV™ Electronic Marshalling delivers a new level of control system I/O performance with unprecedented
flexibility and ease of use. The CHARM I/O card (CIOC) supports up to 96 individually configurable channels and
is designed specifically for multi-core home run cables in centrally located marshalling cabinets. It can also be
installed in field junction boxes to further reduce system design and installation costs. All communications are
completely redundant from the channel (CHARM) to the DeltaV controller.
Benefits
I/O anywhere you need it: DeltaV CIOC provides an unprecedented flexibility in control system I/O topology.
Using standard Ethernet infrastructure hardware you can add I/O anywhere you need it. From a local I/O cabinet to
remote enclosures miles away, simply install the hardware and connect it to the DeltaV control network. Each I/O card
can serve I/O signals to any four controllers in the system with 50-ms updates for fast, reliable control.
Single channel granularity: The CHARM I/O architecture allows each individual channel to be characterized for the
requirements of the field device. Any instrument signal can be wired to any terminal block. The channel is then
electronically marshalled by installing the appropriate CHARM and assigning the channel to one of four
controllers. Home run multi-core instrument cables can be landed in order on a series of CHARM terminal blocks
without concern for signal types.
Reduces installed cost of system: DeltaV Electronic Marshalling helps reduce overall system costs by
eliminating internal cabinet cross wiring, reducing overall footprint, simplifying I/O channel assignments, and
reducing Factory Authorized Testing activities. Electronic Marshalling provides separation between I&E hardware
installation schedules and control strategy development.
Wiring can begin earlier knowing any late changes can be done without lifting a wire. Separation of the
controller and I/O allows more efficient cabinet designs and accommodates late scope changes you can add I/O
anywhere. Adding additional control capacity does not require re-wiring I/O. Simply assign the control modules
and their I/O signals to the new controller, without lifting a wire.
Product Description
Electronic Marshalling hardware includes:
CHARM I/O Carrier (DIN rail-mounted and supports redundant pair of CHARM I/O Cards, redundant 24
V DC power connectivity, and redundant Ethernet communication modules).
CHARM I/O Card (CIOC) provides communication between CHARMs and the Ethernet I/O network to
M-series, S-series, and PK Controllers. The CIOC has Achilles Communications Certification Level 1 and the
redesigned CIOC2 has more computing power and Achilles Communications Certification Level 2. The CIOC2
is a drop-in replacement for the CIOC (v13.3.1 or later is required).
CHARM Base plate (DIN rail-mounted with interleaving power and bus connectors. Supports 12 CHARMs and
their terminal blocks, as well as connection for injected field power).
CHARM Terminal Block (removable terminal block providing terminal connections to field wiring and
physical latch for CHARM).
CHARMs (Characterization Module for each field signal.Provides basic analog to digital conversion and signal
isolation to the redundant communication bus).
Cable Extenders that provide flexibility in carrier mounting.
I/O bus termination (provides bus terminations for redundant I/O bus).
Labeling features for baseplate and channel identification.
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