Emerson DeltaV Electronic Marshalling Migration Solution

Emerson DeltaV Electronic Marshalling Migration Solution

Core positioning and value of the solution

1. Core Definition and Function

DeltaV electronic grouping is a "flexible I/O architecture" technology that replaces traditional hard wired terminal cabinets with CHARactration Modules and Electronic Marshalling Cabinets to achieve a "soft connection" between field device signals (analog/digital input/output) and DeltaV controllers - without the need to lay a large number of field cables, signal routing can be allocated through configuration software, and the core service is for the migration scenario of old DCS systems.

2. Core migration value

Compared to the traditional migration model of "dismantling old systems and rebuilding new systems", the core advantages of this solution are reflected in the three dimensions of "cost reduction, risk reduction, and efficiency improvement":

Reduce downtime: Support "parallel migration" - while the old system is running normally, complete the installation, configuration, and testing of the new system's electronic grouping architecture, with only a brief shutdown at the final switch (usually in hours, rather than days/weeks of traditional migration).

Reduce hardware and wiring costs: eliminate the need for replacing/laying a large number of on-site cables in traditional migration (especially suitable for large factories, where on-site equipment is far away from control rooms); The electronic grouping cabinet has a smaller volume, reducing the footprint of the control room.

Enhance system flexibility and maintainability: Signal routing is implemented through software configuration, and there is no need to rewire when adding/modifying devices in the future; The CHAR module supports online hot plugging, and fault replacement does not affect other signals; Integrated diagnostic function can quickly locate signal faults (such as disconnection and short circuit).

Compatible with legacy devices: No need to replace existing sensors and actuators on site (such as 4-20mA analog devices and discrete digital devices), directly adapt to old device signal types, and protect early investment.

Core components and technical parameters

1. Core hardware components

The hardware architecture of the DeltaV electronic grouping solution consists of three parts: "field side grouping side controller side". The core components and functions are as follows:

Component Name Model/Specification Core Functions Key Features

The CHAR module (signal interface module) is divided into analog (AI/AO), digital (DI/DO), and special signal (such as RTD, thermocouple) series, such as:

-AI module: supports 4-20mA, 0-10V, etc

-DI module: supports the "conversion interface" between 24Vdc, 120Vac discrete signal field equipment signals and DeltaV systems, realizing signal acquisition/output, isolation, and filtering. 1. Channel level isolation (each channel is independently isolated to prevent interference);

2. Online hot plugging (replacing modules without interrupting system operation);

3. Built in diagnostics (monitoring channel faults, module power supply abnormalities);

4. Protection level IP20 (applicable to control room/cabinet environment)

Electronic grouping cabinet standard 19 inch rack mounted, height optional (such as 42U, 36U), including power module, backplane, integrated CHAR module for heat dissipation unit, power distribution, signal aggregation function, replacing traditional hard wired terminal cabinet. 1. Modular design (configure the number of CHAR modules as needed);

2. Redundant power supply (optional 2 × 24Vdc redundant power supply, anti power failure);

3. Backplane bus (supporting data communication and power supply between modules);

4. Heat dissipation control (built-in fan or natural heat dissipation, suitable for industrial environments)

DeltaV S series controllers (such as S100, S200) receive signal data from electronic grouping modules, execute control logic (such as PID regulation, interlock control), and output control instructions to the site. 1. Redundant configuration (optional controller redundancy to improve reliability);

2. High speed communication (communication with electronic grouping cabinets through EtherNet/IP, cycle ≤ 10ms);

3. Compatible with DeltaV V14 and above software versions

On site wiring terminal box (optional) explosion-proof type (such as Ex d) or ordinary type, used for summarizing and transferring cables of on-site equipment. When the on-site equipment is scattered, the cables are first summarized in the terminal box and then connected to the electronic grouping cabinet through a "backbone cable" to reduce wiring volume. 1. Support mixed access of multiple signal types;

2. Explosion proof models are suitable for hazardous areas (such as Class I, Div 1/2)

2. Key technical parameters (general)

Signal compatibility:

Analog input (AI): 4-20mA (two-wire/four wire system), 0-5V, 0-10V, RTD (Pt100, Cu100), thermocouple (J, K, T, E, R, S type);

Analog output (AO): 4-20mA (sourcing/linking), 0-10V;

Digital input (DI): 24Vdc (wet/dry contact), 120Vac, 230Vac;