CS Triplex T8800 Trusted 40‑Channel 24 VDC Digital Input Field Termination Assembly

1. Electrical Specifications
   • Input Type: 40 discrete 24 VDC sinking inputs (compatible with PNP/NPN field devices)
   • Input Voltage: 19.2–30 VDC (operational); 24 VDC nominal
   • Input Current: 8 mA per channel (on‑state); < 100 µA (off‑state)
   • Power Supply: 24 VDC redundant field power (2 independent feeds); 10 W maximum power consumption
   • Isolation: 2500 VDC galvanic between channels, backplane, and field power groups
   • Response Time: < 1 ms for input state changes (compatible with 1 ms SOE)
   • Protection: Per‑channel fast‑acting fuses; reverse polarity protection on field power inputs
   • Line Monitoring: Real‑time open/short circuit detection for field wiring faults
2. Environmental Specifications
   • Operating Temperature: -40°C to +70°C
   • Storage Temperature: -40°C to +85°C
   • Relative Humidity: 5%–95% (non‑condensing)
   • Shock Resistance: 30 g, 11 ms duration (per IEC 60068‑2‑27)
   • Vibration Resistance: 5 g, 10–150 Hz (per IEC 60068‑2‑6)
   • EMI/EMC Compliance: EN 61000‑6‑2 (immunity), EN 61000‑6‑4 (emissions); CE, UL certified
   • Hazardous Area Certifications: ATEX II 2G Ex ia IIC T4 Ga; IECEx IECEx Ex ia IIC T4 Ga (with external barriers)
3. Safety & Compliance
   • Safety Certification: TÜV Certified IEC 61508 SIL 3 (when paired with Trusted T8400 input modules); UL 61010‑1; CSA C22.2 No. 61010‑1; CE marked
   • Fault Tolerance: 5 isolated power groups prevent cross‑group fault propagation; per‑channel fuse protection
   • Mean Time Between Failures (MTBF): 1,200,000 hours (per Telcordia SR‑332, 25°C)
   • SOE Reporting: 1 ms resolution for input state changes (paired with T8400 modules)
   • Diagnostic Coverage: 99% for field wiring faults (open/short circuit detection)
   • Safety State: Configurable fail‑safe state (de‑energized) per channel via module settings

Functional Features

1. 40 Digital Input Channels: 24 VDC inputs for SIS signal acquisition with field termination.
2. 5 Independent Fused Power Groups: Isolates 8 channels per group to prevent cross‑group fault propagation.
3. IP65 Cast‑Aluminum Enclosure: Protects against dust, water, and corrosion in harsh field environments.
4. 2500 VDC Isolation: Protects backplane and channels from field transients/ground loops.
5. SmartSlot Compatibility: Works with Trusted T8400 modules for hot swap capability.
6. 1 ms SOE Reporting: Captures input state changes for audit trails and root‑cause analysis (paired with T8400 modules).
7. Per‑Channel Fuse Protection: 2 A fast‑acting fuses for field power fault immunity.
8. Line Monitoring: Real‑time open/short circuit detection for field wiring faults.
9. Redundant Field Power: 2 independent 24 VDC feeds for power fault tolerance.
10. Front‑Panel Diagnostics: Channel/group/power/fault LEDs enable rapid troubleshooting.
11. Reverse Polarity Protection: Prevents damage from incorrect field power wiring.
12. Hazardous Area Ready: ATEX/IECEx certifications for explosive atmosphere deployment (with barriers).
13. Wide Temperature Range: Operates from -40°C to +70°C for extreme industrial conditions.
14. Seamless Trusted Integration: Works with T8400‑series input modules for TMR signal processing.
15. Configurable Fail‑Safe States: Per‑channel safe state (de‑energized) for flexibility.

Application Scenarios

1. Oil & Gas ESD Systems: Terminates 40 emergency shutdown limit switches and pressure sensors, with 5 power groups isolating critical zones and 2500 VDC isolation preventing ground loops.
2. Chemical Plant Safety Interlocks: Interfaces 40 safety gate switches and temperature trip sensors, using per‑channel fuses to protect against field wiring faults.
3. Marine Offshore Platforms: Connects 40 fire & gas detectors and emergency stop buttons, with IP65 enclosure resisting saltwater corrosion and harsh weather.
4. Power Generation Turbine Protection: Terminates 40 turbine vibration sensors and lube oil level switches, with 1 ms SOE for post‑trip root‑cause analysis.
5. Mining Surface Facilities: Interfaces 40 conveyor emergency stops and dust suppression triggers, with redundant field power ensuring operation during power fluctuations.
6. Refinery Process Monitoring: Connects 40 valve position switches and flow trip sensors, using line monitoring to detect open/short circuits in corrosive environments.

Additional Information

• Origin: United States
• Warranty: 12‑month warranty for new original units; extended warranties via Rockwell Automation service contracts
• Compatibility: Trusted T8400‑series digital input modules, T8100 controller chassis, T8300 expander chassis
• Installation: Wall/pipe‑mount FTA; wire field devices to heavy‑duty connectors; connect to T8400 module via backplane
• Maintenance: Replace fuses without system shutdown; inspect LEDs for channel/group status; no periodic calibration required
• Accessories: Trusted system software, field power distribution harnesses, backplane connector adapters, DIN rail mounting kits, external intrinsic safety barriers