Emerson DeltaV ™ Electronic Marshalling for Migrations

Emerson DeltaV ™  Electronic Marshalling for Migrations

Core positioning and core advantages

The electronic grouping for DeltaV migration is built on CHARM I/O cards (CIOC) and designed specifically for the migration of traditional control systems to DeltaV systems. With "high flexibility, low transformation cost, and full redundancy and reliability" as the core, it achieves in-situ replacement and efficient integration of I/O modules. The core advantages can be summarized as six key features:

Flexible deployment of I/O: CIOC supports 1:1 direct replacement within the same space as traditional I/O, without the need for new cabinets, customized cables, or additional grouping; I/O can be installed in any adaptive position of the existing cabinet as needed, adapting to the layout requirements of different migration scenarios.

Single channel refined configuration: The CHARM I/O architecture supports independent adaptation of field device requirements for each channel. Any instrument signal can be connected to any terminal block, and electronic grouping can be completed by installing the corresponding CHARM module and assigning it to up to 4 controllers; No need to split traditional panel signals into multiple DeltaV I/O cards, solving the problem of adapting traditional I/O terminals.

In situ replacement of traditional I/O: The migration panel can be installed above, below, or even in front of the traditional terminal panel, and the migration can be completed by simply moving the wires a few inches; As a standard CHARM motherboard, the migration panel communicates with CIOC through cable interfaces and is suitable for vertical or horizontal installation (supported in some scenarios), without the need to stretch I/O cables, ensuring smooth system switching.

Fully redundant communication architecture: Full link redundancy from the CHARM channel to the DeltaV controller, including dual I/O cards on the carrier, redundant communication modules (primary/backup network connections), dual 24V DC input power supplies, and redundant power and communication buses provided by the carrier to the CHARM backplane, ensuring high system reliability.

Complete DeltaV solution: After migration, the system is built entirely on DeltaV standard hardware, without mixed custom software and hardware. It can be supported by existing DeltaV operation and maintenance personnel using unified spare parts, reducing maintenance complexity and costs in the later stage.

Plug and play I/O: At the hardware level, components are quickly assembled through DIN rail locks and interlocking carrier connectors; At the software level, after inserting CHARM, the system automatically recognizes the node and generates I/O definitions in the configuration database. The CHARM self key control system avoids accidental insertion; Support drag and drop operations to assign any number of channels to the controller, simplifying the configuration process.

Core components and functional details of the product

（1） Core hardware components

CHARM I/O carrier DIN rail installation, supports redundant CHARM I/O card pairs, provides redundant communication modules and dual 24V DC power interfaces, connects to CHARM motherboard and transmits redundant power/communication bus

CHARM I/O cards (CIOC/CIOC2) achieve communication between CHARM and Ethernet I/O networks (connecting M/S/PK series controllers). CIOC has obtained Achilles communication certification level 1; CIOC2 has stronger computing power and has obtained certification level 2, which can directly replace CIOC

CHARM base plate DIN rail installation, including interleaved power and bus connectors supporting 12 CHARMs and terminal blocks, providing on-site injection power interface, compatible with migration panel installation

CHARM terminal block can be disassembled, connected to on-site wiring and fixed. CHARM supports 2/3/4 wire system equipment wiring, and some models include fused injection power function

The CHARM module (Characterization Module) provides basic analog-to-digital conversion, redundant bus connection, and fault isolation for each field signal. It has circuit protection functions (current limiting/melting) and surge protection (in accordance with EMC industry standards), and faults are limited to a single module

Other auxiliary components include cable extenders (flexible adjustment of carrier installation position), backplane terminators (redundant I/O bus terminals), and 19 inch migration panels (compatible with traditional 19 inch cabinets, supporting 2 CIOC or 2 backplane installations) to ensure hardware installation flexibility and bus signal stability

（2） Key functional characteristics

Power supply: On site power is supplied to each CHARM (maximum 100mA per module) through a redundant 24V DC bus; The high current discrete channel can be powered by injecting the bus through the locally integrated power supply on the motherboard.

Maintenance convenience: CHARM can partially pop up to the locked position, disconnect the on-site wiring from the system, and facilitate on-site maintenance or cutting off equipment power; Activate the lock buckle to eject to the positioning position, and close the lock buckle to isolate the on-site wiring.