• Purpose: Control & communication for T8300 expander chassis

• Architecture: TMR (3‑2‑0 fault tolerant)

• Safety Level: IEC 61508 SIL 3 / SIL 4, TÜV certified

• Compatibility: T8100/T8400 main chassis, T8300 expander chassis, T8240 power shelf, TC‑301 copper cable

• Max Expanders: 8 × T8300 per T8310

2. Product Overview

• TMR processing for expander I/O data

• IMB (Inter‑Module Bus) master communication to T8300 chassis (250 Mbps)

• Redundant 24 V DC power from main chassis backplane

• Comprehensive diagnostics & fault reporting

• Hot‑swap support (online replacement without system shutdown)

3. Specifications

3.1 Mechanical

• Form Factor: Single‑width T8000 module

• Dimensions (H×W×D): 241 mm × 30 mm × 300 mm (9.5” × 1.2” × 11.8”)

• Weight: 1.26 kg (2.78 lbs)

• Mounting: Horizontal slot in T8100/T8400 main chassis

• Construction: EMC‑shielded steel, hot‑swap latch

3.2 Electrical

• Supply Voltage: 20–32 V DC (nominal 24 V DC)Rockwell Automation

• Power Consumption: 40 W max

• Backplane Current: 1.7 A @ 24 V DC

• Communication Port: IMB (Inter‑Module Bus), 250 Mbps

• Cable: TC‑301 shielded twisted pair

• Isolation: 2500 V DC (field ↔ system)

3.3 Environmental

• Operating Temp: –5 °C to +60 °C (23 °F to 140 °F)

• Storage Temp: –25 °C to +70 °C

• Humidity: 5–95 % RH, non‑condensing

• Altitude: ≤ 2000 m

• Vibration: IEC 60068‑2‑6 (1 g, 10–150 Hz)

• Shock: IEC 60068‑2‑27 (15 g, 11 ms)

• Protection: IP40 (cabinet‑mounted)

• Hazardous Area: ATEX II 3G Ex ec IIC T4 GcRockwell Automation

3.4 Performance

• Processor: 100 MHz TMR triple‑core CPU

• Memory: 1 GB RAM, 32 GB SSD

• Data Rate: 250 Mbps (IMB to T8300)

• Max Expander Chassis: 8

• I/O Capacity: Up to 112 I/O modules (8 × 14 slots)

4. Front Panel & LED Indicators

LED Status (per slice: PWR, OK, FAULT)

• PWR (Green): On = 24 V DC power OK; Off = No power

• OK (Green): On = TMR health OK; Flashing = Minor fault (e.g., communication warning)

• FAULT (Red): On = Critical fault (overvoltage, overtemperature, IMB loss, slice mismatch)

IMB Port

• Label: IMB (Expander)

• Connector: RJ45‑style for TC‑301 cable

• Status: Link/activity indicated by OK/FAULT LEDs

5. Compatibility & Accessories

5.1 Required Accessories

• TC‑301: 30 m IMB copper cable (T8310 ↔ T8300)

• T8300: 6U expander chassis (14 I/O slots)

• T8240: 1U power shelf (24 V DC for T8300)

5.2 Compatible Main Chassis

• T8100: Trusted Processor Chassis

• T8400: Trusted Controller Chassis

5.3 Compatible I/O Modules (in T8300)

• T8401: 16‑ch 24 V DC Digital Input

• T8402: 16‑ch Digital Output (24 V DC)

• T8403: 8‑ch Analog Input (4–20 mA)

• T8404: 8‑ch Analog Output (4–20 mA)

• T8451: 8‑ch RTD Input

• T8461: 8‑ch Thermocouple Input

6. Installation (Hot‑Swap Supported)

6.1 Module Insertion

1. Align T8310 with guides in main chassis slot (leftmost processor slot).

2. Push firmly until fully seated (backplane connector engaged).

3. Close front latch to secure.

4. The module will power on and begin TMR synchronization within 60 seconds.

6.2 IMB Cable Connection (T8310 ↔ T8300)

1. Connect one end of TC‑301 to the IMB (Expander) port on T8310 front panel.

2. Connect the other end to the IMB port on the rear panel of the target T8300.

3. Tighten connector screws; avoid sharp bends (min. bend radius = 8× cable diameter).

4. Set T8300 backplane DIP switches to unique addresses (2–8).

6.3 Hot‑Swap Replacement

1. Open front latch of faulty T8310.

2. Pull module straight out (no power shutdown required).

3. Insert new T8310 (same part number) and close latch.

4. System will auto‑synchronize within 2 minutes; no reconfiguration needed.

7. Operation & Diagnostics

• TMR Synchronization: On power‑up, three internal slices sync within 60 seconds.

• Fault Tolerance: Any single slice failure triggers automatic reconfiguration (3‑2‑0) with no downtime.

• Diagnostics: All faults are logged to the main system HMI and local LEDs.

• Expander Control: T8310 polls all T8300 I/O modules, processes data, and communicates with the main controller.

8. Maintenance & Troubleshooting

8.1 Routine Maintenance

• Quarterly: Check LED status, cable tightness, and latch security.

• Annually: Clean front panel with dry lint‑free cloth; inspect connectors for wear.

8.2 Common Issues

• PWR LED Off: Check main chassis 24 V DC supply; reseat module.

• OK LED Flashing: Verify TC‑301 cable; check T8300 DIP switch address.

• FAULT LED On: Replace T8310; check for overheating or IMB short circuit.

• No Expander Communication: Ensure T8300 is powered; reseat TC‑301 connectors.

9. Safety & Compliance

• Install only in Trusted T8000 SIS environments.

• Disconnect AC power before wiring (except hot‑swap module replacement).

• Use shielded cables; comply with IEC 61000‑6‑2 / 6‑4.

• Certifications: CE, UL, CSA, IEC 61508 SIL 3 / SIL 4, TÜV certified.