Description
The Rockwell Automation T8800C (Series B, Ver. G, PN-179264) is a high-density 40-Channel 24VDC Digital Input Module designed for the Trusted™ safety system. As a safety-critical component, it is engineered to monitor field-level digital signals—such as emergency stops, safety switches, and process limit sensors—and transmit this data to the safety processor with extreme reliability. Its TMR (Triple Modular Redundant) capability ensures that the system maintains continuous operation even in the event of hardware faults.
Technical Specifications
| Feature | Details |
| Brand | Rockwell Automation / ICS Triplex |
| Model | T8800C (PN-179264) |
| Series / Version | Series B / Ver. G |
| Origin | United Kingdom |
| Input Channels | 40 Channels |
| Input Type | 24V DC Digital Input |
| Function | Safety-rated field device signal acquisition |
| Color | Industrial Gray / White |
| Hot Swappable | Yes |
Key Product Features
- 🛡️ TMR Architecture: Designed to support triple modular redundant safety logic, ensuring the highest level of fault tolerance and “fail-safe” integrity.
- ⚡ High Density: Provides 40 independent channels on a single module, optimizing cabinet space and reducing system complexity.
- 🔌 Hot-Swap Support: The Rockwell Automation T8800C is designed to be replaced while the system is powered and running, ensuring zero process downtime during routine maintenance.
- 📊 Integrated Diagnostics: Features individual channel status LEDs and internal diagnostic circuitry to detect open-circuit or short-circuit faults on field wiring.
- 🌐 Safety Certified: Designed specifically for applications requiring compliance with strict international safety standards (SIL 3).
Recommended Series Models (Related Trusted I/O Modules)
To build a fully populated safety backplane, these modules are commonly used alongside the T8800C:
- T8850: Trusted Fault-Tolerant Interface Module
- T8403: Trusted Analog Input Module (24V DC)
- T8431: Trusted Digital Input Module (Low Voltage)
- T8451: Trusted Digital Output Module (24V DC)
- T8461: Trusted Digital Output Module (120V AC)
- T8110B: Trusted Processor Module
- T8151C: Trusted Comms Interface Module
- T8191: Trusted Power Distribution Module
- T8310: Trusted Expander Interface
- T8890: Trusted Marshalling Terminal Unit

