SS4303T01 DeltaV SIS Electronic Marshalling CHARM | Emerson

DeltaV™ SIS Electronic Marshalling Architecture

SS4303T01 delivers flexible analog signal integration for DeltaV™ SIS safety systems.

The LS AI 4-20 mA HART CHARM simplifies field signal deployment without cross-wiring.

Emerson DeltaV SIS Electronic Marshalling architecture improves engineering scalability.

Field signal assignment no longer depends on fixed channel classifications.

Online CHARM insertion supports faster project modifications and system expansion.

The modular safety network structure improves maintenance accessibility.

Each LS CHARM independently protects connected field wiring circuits.

Configuration Breakdown

Model Segment	Description
SS	DeltaV™ SIS Safety System Series
4303	LS Analog Input HART CHARM Platform
T01	Specific Factory Hardware Revision

Integrated System Components

• CHARM Smart Logic Solver Carrier
• Redundant CHARM Smart Logic Solvers
• CHARM Baseplates supporting 12 LS CHARMs
• LS CHARM removable terminal blocks
• Redundant Ethernet Safety Network connectivity
• Redundant I/O bus termination assemblies
• Field power injection support
• Carrier extender cables for cabinet flexibility
• Integrated maintenance labeling features

Electronic Marshalling Advantages

SS4303T01 eliminates traditional signal marshalling constraints.

Engineers can terminate field multicore cables in organized cabinet layouts.

No signal-type partitioning is required during wiring installation.

Appropriate LS CHARMs complete signal characterization automatically.

Online autosensing reduces commissioning interruptions during expansions.

Additional CHARM Smart Logic Solvers can be added online.

Technical Performance Specifications

Parameter	Specification
Brand	Emerson
Model	SS4303T01
Series	DeltaV™ SIS Electronic Marshalling
Module Type	LS AI 4-20 mA HART CHARM
Input Impedance	10 MΩ
Repeatability	0.05% of span
Resolution	24-bit A/D converter
Calibration	No calibration required
Common Mode Rejection	90 dB at 50/60 Hz
Isolation	1000V DC galvanic isolation
CHARM Power Requirement	18 mA maximum at 24V DC
Heat Dissipation	0.40 Watts

Supported Voltage Signal Ranges

Sensor Type	Signal Range	Reference Accuracy	Temperature Drift	Nominal Resolution
0 to 5 V	0 to 5 V	±0.005 V	±0.0005 V/°C	0.00008 V
0 to 10 V	0 to 10 V	±0.010 V	±0.001 V/°C	0.00015 V
1 to 5 V	1 to 5 V	±0.005 V	±0.0005 V/°C	0.00006 V
±1 V	-1 to +1 V	±0.0025 V	±0.0002 V/°C	0.00003 V
±5 V	-5 to +5 V	±0.005 V	±0.0005 V/°C	0.00015 V
±10 V	-10 to +10 V	±0.010 V	±0.001 V/°C	0.00030 V

Safety and Isolation Characteristics

• Individual field signal isolation architecture
• Integrated surge suppression for EMC protection
• Current-limited signal handling for wiring fault protection
• Fault isolation localized to individual LS CHARMs
• Protected field maintenance disconnect position
• Safe partial-ejection maintenance mechanism

System Expansion and Network Design

The CHARM Smart Logic Solver supports communication with up to 15 additional CSLS units.

Redundant Ethernet safety networking improves operational continuity.

Only DeltaV SIS Smart Switches support Local Safety Network communication.

SZ controllers isolate safety systems from process control networks.

Replaceable Ethernet Isolation Ports improve service flexibility.

Suitable Equipment and Integration Targets

• Safety instrumented systems
• Emergency shutdown systems
• Critical process monitoring systems
• Industrial HART field transmitters
• Analog voltage sensing applications
• Distributed process automation platforms
• Refinery protection systems
• Plant-wide safety control cabinets

Industrial Application Environments

• Oil and gas production facilities
• Petrochemical process plants
• Power generation protection systems
• Chemical safety shutdown networks
• Pharmaceutical critical process monitoring
• Hazardous industrial production environments
• Large-scale integrated process control systems

Diagnostic and Maintenance Capability

SS4303T01 improves fault isolation at the individual signal level.

The partial-eject mechanism enables live maintenance procedures.

Online autosensing reduces downtime during system expansion.

Integrated surge protection improves long-term signal reliability.

Signal isolation architecture minimizes fault propagation risks.

Labeling systems improve maintenance traceability during field service.

Global PLC Spare HUB Review

SS4303T01 suits safety-critical applications requiring flexible signal management.

The Electronic Marshalling concept significantly reduces engineering rework.

Its modular architecture supports phased plant expansion strategies.

Field isolation capability improves operational safety during maintenance activities.

Engineers benefit from reduced cabinet complexity and simplified commissioning workflows.

The platform performs effectively in large distributed safety systems.

Installation Recommendations

• Use certified DIN rail mounting hardware
• Maintain proper redundant network separation
• Verify bus termination positioning during assembly
• Use shielded field signal cabling where required
• Inspect LS CHARM latch engagement before energizing
• Document channel identification during commissioning

Shipping and Delivery Support

• 24–48 hour fast dispatch service available
• FedEx international priority shipping supported
• UPS industrial logistics available
• DHL express delivery service supported
• Protective export packaging included
• Worldwide delivery coverage available

Warranty Coverage

12-month warranty support applies under standard industrial operating conditions.

Technical assistance remains available throughout the warranty period.

Professional after-sales support assists integration and maintenance activities.

Professional Engineering FAQ

How does Electronic Marshalling reduce engineering modification time?

Signal allocation remains flexible because field wiring no longer depends on fixed channel assignments.

What advantage does individual LS CHARM isolation provide?

Single-channel fault containment prevents adjacent signal disruption during abnormal conditions.

What should engineers evaluate before selecting SS4303T01?

Verify voltage signal ranges, safety network architecture, and required HART integration capability.

How can maintenance teams safely isolate field devices?

The partial-eject latch disconnects field wiring while maintaining secure mechanical positioning.

Which projects benefit most from this DeltaV SIS platform?

Large-scale safety instrumented systems with evolving I/O requirements benefit significantly.

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