ICS TRIPLEX T8310 | Trusted TMR Expander Processor – Specifications & Integration Guide

Description

System Architecture & Operational Principle

• Upstream: Trusted controller chassis (e.g., T8110B TMR processors);
• Downstream: Trusted I/O modules (e.g., T8403 digital input modules) and field devices.

Operational Advantages

• Fault Tolerance: TMR architecture ensures continuous operation during component failures, maintaining system availability.
• High-Speed Communication: 250 Mbps data transfer rate enables real-time data exchange between controller and expander chassis.
• Hot-Swappable: Allows replacement without system shutdown, minimizing downtime during maintenance.

Core Technical Specifications

Attribute​	Specification​
Architecture​	Triple Modular Redundancy (TMR) with lockstep synchronization
Data Transfer Rate​	250 Mbps (full duplex)
Power Supply​	Dual redundant 24V DC (20–32 VDC input range)
Operating Temperature​	-40°C to +70°C (-40°F to 158°F)
Storage Temperature​	-40°C to +85°C (-40°F to 185°F)
Humidity Tolerance​	5–95% non-condensing
Mounting​	Trusted expander chassis processor slots (leftmost two slots)
Dimensions (W×H×D)​	~266 mm × 31 mm × 303 mm (10.5 in × 1.2 in × 11.9 in) (estimated)
Weight​	~1.33 kg (2.93 lbs)
Certifications​	SIL 3 (IEC 61508/61511), ATEX, IECEx
Compatibility​	Trusted T8110B/T8111C processors; T8403/T8461 I/O modules; T8300 expander chassis

ICS Triplex T8310

Customer Value & Operational Benefits

Field Engineer’s Notes (From the Trenches)

When installing the T8310, always verify the expander chassis slot orientation—the module must be installed in the leftmost two processor slots of the expander chassis. I once saw a site where a contractor installed the module in the wrong slot, resulting in a “communication failure” fault that took 2 hours to diagnose.

Another gotcha: use shielded twisted-pair (STP) cables​ for inter-chassis communication—unshielded cables can pick up electromagnetic interference (EMI) from nearby power lines, leading to intermittent communication errors. Switching to STP cables eliminated the problem immediately.

If the T8310’s “FAULT” LED is red, check the TMR voting status—the module will log faults (e.g., “processing unit failure” or “communication timeout”) in the Trusted system diagnostic software. Use the software to retrieve the fault code and follow the manufacturer’s troubleshooting steps.

Real-World Applications

• Oil Refinery: Emergency Shutdown (ESD) System​
  An oil refinery uses the T8310 to expand the processing capacity of its Trusted TMR-based ESD system. The module connects 128 digital input modules (T8403) to the controller chassis, enabling real-time monitoring of critical valves and sensors. The TMR architecture ensures that if one processing unit fails, the remaining two continue to process data, maintaining ESD system operation.
• Power Plant: Turbine Control​
  A power plant uses the T8310 to connect its Trusted TMR-based turbine control system to 64 analog input modules (T8151B). The module’s 250 Mbps data transfer rate enables real-time monitoring of turbine speed and temperature, allowing the controller to adjust the fuel flow and maintain optimal efficiency.
• Chemical Plant: Fire & Gas Detection​
  A chemical plant uses the T8310 to expand the I/O capacity of its Trusted TMR-based fire & gas detection system. The module connects 32 fire detectors and 16 gas sensors to the controller chassis, enabling real-time monitoring of the plant’s fire and gas status. The hot-swappable design allows technicians to replace a faulty module during operation, minimizing downtime.

  

  ICS Triplex T8310

High-Frequency Troubleshooting FAQ

• Processing Unit Failure: One of the three TMR processing units has failed (check the Trusted system diagnostic software for the fault code);
• Communication Timeout: The module is not receiving data from the controller chassis (check the inter-chassis cables);
• Power Supply Failure: The 24V DC power supply is missing or outside the tolerance range (use a multimeter to check).

1. Power Down: Turn off the expander chassis power supply;
2. Remove Old Module: Pull the module out of the expander chassis (use a flathead screwdriver to release the locking tabs);
3. Install New Module: Insert the new T8310 into the expander chassis (align the module with the slot);
4. Power Up: Turn on the power supply and verify the module’s operation (check the “OK” LED).

1. Inter-Chassis Cables: Ensure the STP cables are connected correctly (no loose connections);
2. TMR Configuration: Verify that the T8310 is configured for TMR operation (check the Trusted system software);
3. Power Supply: Ensure the 24V DC power supply is delivering the correct voltage (24V DC ±10%).

Commercial Availability & Pricing