Emerson 8811-IO-DC PAC8000 8-Channel Safety Digital I/O Module
Emerson 8811-IO-DC PAC8000 8-Channel Safety Digital I/O Module
Manufacturer: Emerson
Product No.: 8811-IO-DC
Condition:1000 in stock
Product Type: PAC8000 8-channel Safety Digital Input
Product Origin: 6954789034567
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
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Emerson 8811-IO-DC PAC8000 8-Channel Safety Digital I/O Module
The Emerson 8811-IO-DC is a safety-certified digital input/output module engineered for the PAC8000 programmable automation controller platform. Designed to meet IEC 61508 SIL 3 and IEC 61511 requirements, this 8-channel configurable I/O module delivers deterministic performance for emergency shutdown systems (ESD), fire and gas detection, and safety instrumented functions in high-consequence industrial environments.
Safety Certification & Compliance
Certified to the highest safety integrity levels for process industry applications, the 8811-IO-DC achieves SIL 3 capability in both single-channel (1oo1) and redundant (1oo2, 2oo2) voting configurations. The module meets stringent international standards including IEC 61508, IEC 61511, API 670, and ANSI/ISA-84.00.01, making it suitable for deployment in refineries, offshore platforms, LNG terminals, and chemical processing facilities where functional safety is paramount.
Key Certifications:
- IEC 61508 SIL 3 certified for safety instrumented systems
- IEC 61511 compliant for process industry safety lifecycle
- ATEX/IECEx Zone 2 hazardous area approval
- FM/CSA Class I Division 2 Groups A, B, C, D
- CE marked for European machinery directive compliance
Technical Specifications
| I/O Channels | 8 configurable digital input or output channels |
| Channel Configuration | Software-selectable per channel (input or output) |
| Input Voltage Range | 18-30 VDC nominal (24 VDC typical) |
| Input Current | 7 mA typical per channel at 24 VDC |
| Output Type | Solid-state sourcing (positive logic) |
| Output Current | 500 mA maximum per channel, 2A total module |
| Response Time | 1.8 ms typical (input to controller update) |
| Isolation | 1500 VAC channel-to-backplane, 500 VAC channel-to-channel |
| Diagnostic Coverage | >99% with continuous self-testing and fault detection |
| Operating Temperature | -40°C to +70°C ambient |
| Power Consumption | 4.5W typical, 6W maximum from backplane |
| MTBF | >150 years per IEC 61508 reliability calculations |
Safety Instrumented System Applications
Emergency Shutdown (ESD) Systems: Monitor critical process parameters including high/low pressure switches, temperature sensors, level switches, and vibration detectors. Execute emergency shutdown sequences by controlling isolation valves, blowdown valves, and depressurization systems with deterministic response times meeting API 670 requirements for turbomachinery protection.
Fire & Gas Detection Integration: Interface with flame detectors, combustible gas sensors, toxic gas monitors, and manual call points in safety instrumented systems. Drive alarm annunciators, emergency lighting, ventilation dampers, and deluge valve solenoids in coordinated fire suppression sequences compliant with NFPA 72 and API 2218 standards.
Burner Management Systems (BMS): Implement safety interlocks for fired heaters, process furnaces, and boiler systems. Monitor flame scanners, air flow switches, fuel pressure transmitters, and purge timers while controlling pilot igniters, main fuel valves, and forced draft fan contactors per NFPA 85 and FM Global requirements.
High-Integrity Pressure Protection (HIPPS): Deploy in SIL 3-rated overpressure protection systems as an alternative to conventional pressure relief valves. Monitor upstream pressure transmitters and execute rapid valve closure to prevent downstream equipment overpressure in pipeline and process vessel applications.
Advanced Diagnostic & Fault Detection
Continuous online diagnostics monitor channel health, power supply integrity, backplane communication status, and internal processor functionality. Automatic fault detection identifies open-circuit conditions, short-circuit faults, overcurrent events, and communication errors with millisecond-level annunciation to the PAC8000 controller and operator workstations.
Partial stroke testing (PST) capabilities support proof testing of final control elements without process shutdown, reducing spurious trip rates and extending safety system availability. Built-in test pulse generation validates complete signal path integrity from field device through module to controller logic.
PAC8000 System Architecture Integration
The 8811-IO-DC mounts on standard PAC8000 carriers including the 8710-CA-04 (4-module), 8720-CA-08 (8-module), and 8729-CA-08 intrinsically safe carrier for hazardous area installations. Hot-swappable design enables module replacement during operation without disrupting adjacent I/O channels or requiring controller shutdown.
Seamless integration with PAC8000 controllers (8521-RT-DE RTU, 8560-LC-TS logic controller) via high-speed backplane communication ensures deterministic scan times and synchronized I/O updates. Supports redundant controller configurations with automatic failover and state synchronization for maximum system availability.
Related PAC8000 System Components
| Product Model | Description | Product Link |
|---|---|---|
| GE 8810-HI-TX | PAC8000 8-Channel Safety Analog Input Module | View Product |
| GE 8125-DI-DC | PAC8000 32-Channel Digital Input Module | View Product |
| GE 8729-CA-08 | PAC8000 Intrinsically Safe Carrier (8 Module) | View Product |
Quality Assurance & Lifecycle Support
Factory-tested to IEC 61508 functional safety standards with complete documentation package including safety manual, proof test procedures, and reliability data for SIL verification calculations. Each module ships with calibration certificate, material traceability records, and configuration templates for rapid commissioning.
Backed by 24-month warranty covering manufacturing defects and safety performance specifications. Global technical support provides SIL verification assistance, redundancy architecture design, and proof testing guidance to ensure compliance with site-specific safety requirements and regulatory mandates.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191
Product Description
Emerson 8811-IO-DC PAC8000 8-Channel Safety Digital I/O Module
The Emerson 8811-IO-DC is a safety-certified digital input/output module engineered for the PAC8000 programmable automation controller platform. Designed to meet IEC 61508 SIL 3 and IEC 61511 requirements, this 8-channel configurable I/O module delivers deterministic performance for emergency shutdown systems (ESD), fire and gas detection, and safety instrumented functions in high-consequence industrial environments.
Safety Certification & Compliance
Certified to the highest safety integrity levels for process industry applications, the 8811-IO-DC achieves SIL 3 capability in both single-channel (1oo1) and redundant (1oo2, 2oo2) voting configurations. The module meets stringent international standards including IEC 61508, IEC 61511, API 670, and ANSI/ISA-84.00.01, making it suitable for deployment in refineries, offshore platforms, LNG terminals, and chemical processing facilities where functional safety is paramount.
Key Certifications:
- IEC 61508 SIL 3 certified for safety instrumented systems
- IEC 61511 compliant for process industry safety lifecycle
- ATEX/IECEx Zone 2 hazardous area approval
- FM/CSA Class I Division 2 Groups A, B, C, D
- CE marked for European machinery directive compliance
Technical Specifications
| I/O Channels | 8 configurable digital input or output channels |
| Channel Configuration | Software-selectable per channel (input or output) |
| Input Voltage Range | 18-30 VDC nominal (24 VDC typical) |
| Input Current | 7 mA typical per channel at 24 VDC |
| Output Type | Solid-state sourcing (positive logic) |
| Output Current | 500 mA maximum per channel, 2A total module |
| Response Time | 1.8 ms typical (input to controller update) |
| Isolation | 1500 VAC channel-to-backplane, 500 VAC channel-to-channel |
| Diagnostic Coverage | >99% with continuous self-testing and fault detection |
| Operating Temperature | -40°C to +70°C ambient |
| Power Consumption | 4.5W typical, 6W maximum from backplane |
| MTBF | >150 years per IEC 61508 reliability calculations |
Safety Instrumented System Applications
Emergency Shutdown (ESD) Systems: Monitor critical process parameters including high/low pressure switches, temperature sensors, level switches, and vibration detectors. Execute emergency shutdown sequences by controlling isolation valves, blowdown valves, and depressurization systems with deterministic response times meeting API 670 requirements for turbomachinery protection.
Fire & Gas Detection Integration: Interface with flame detectors, combustible gas sensors, toxic gas monitors, and manual call points in safety instrumented systems. Drive alarm annunciators, emergency lighting, ventilation dampers, and deluge valve solenoids in coordinated fire suppression sequences compliant with NFPA 72 and API 2218 standards.
Burner Management Systems (BMS): Implement safety interlocks for fired heaters, process furnaces, and boiler systems. Monitor flame scanners, air flow switches, fuel pressure transmitters, and purge timers while controlling pilot igniters, main fuel valves, and forced draft fan contactors per NFPA 85 and FM Global requirements.
High-Integrity Pressure Protection (HIPPS): Deploy in SIL 3-rated overpressure protection systems as an alternative to conventional pressure relief valves. Monitor upstream pressure transmitters and execute rapid valve closure to prevent downstream equipment overpressure in pipeline and process vessel applications.
Advanced Diagnostic & Fault Detection
Continuous online diagnostics monitor channel health, power supply integrity, backplane communication status, and internal processor functionality. Automatic fault detection identifies open-circuit conditions, short-circuit faults, overcurrent events, and communication errors with millisecond-level annunciation to the PAC8000 controller and operator workstations.
Partial stroke testing (PST) capabilities support proof testing of final control elements without process shutdown, reducing spurious trip rates and extending safety system availability. Built-in test pulse generation validates complete signal path integrity from field device through module to controller logic.
PAC8000 System Architecture Integration
The 8811-IO-DC mounts on standard PAC8000 carriers including the 8710-CA-04 (4-module), 8720-CA-08 (8-module), and 8729-CA-08 intrinsically safe carrier for hazardous area installations. Hot-swappable design enables module replacement during operation without disrupting adjacent I/O channels or requiring controller shutdown.
Seamless integration with PAC8000 controllers (8521-RT-DE RTU, 8560-LC-TS logic controller) via high-speed backplane communication ensures deterministic scan times and synchronized I/O updates. Supports redundant controller configurations with automatic failover and state synchronization for maximum system availability.
Related PAC8000 System Components
| Product Model | Description | Product Link |
|---|---|---|
| GE 8810-HI-TX | PAC8000 8-Channel Safety Analog Input Module | View Product |
| GE 8125-DI-DC | PAC8000 32-Channel Digital Input Module | View Product |
| GE 8729-CA-08 | PAC8000 Intrinsically Safe Carrier (8 Module) | View Product |
Quality Assurance & Lifecycle Support
Factory-tested to IEC 61508 functional safety standards with complete documentation package including safety manual, proof test procedures, and reliability data for SIL verification calculations. Each module ships with calibration certificate, material traceability records, and configuration templates for rapid commissioning.
Backed by 24-month warranty covering manufacturing defects and safety performance specifications. Global technical support provides SIL verification assistance, redundancy architecture design, and proof testing guidance to ensure compliance with site-specific safety requirements and regulatory mandates.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191