Overview
Manuals
Fault Tolerance and Installation
Critical Implementation Warning
Features:
- Comprehensive diagnostics and self-test
- Guaranteed, First fault – Fault Tolerant, Second fault – Fail Safe
- On-board 1 ms resolution Sequence of Events reporting
The TrustedTM TMR 24V dc Digital Output Module interfaces to 40 field output devices. Outputs are arranged in five groups of eight outputs. All outputs in a group share a common power source and return. Fault tolerance is achieved through Triple Modular Redundancy (TMR) within the same module for each of the 40 output channels.
The module provides on-board Sequence of Events (SOE) reporting with a resolution of 1ms. The “event” is the actual sensing of the field device loop current.Each triplicated section (slice) of the module, receives output data from the TrustedTM TMR Processor and sends its data to an internal safety layer hardware voter. Each slice uses the voted data to control the outputs. Every output channel consists of a six-element voted array.
The T8451C ICS Triplex Digital Output Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T8451C Digital Output Module manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Safety Configuration: Primarily achieves fault-safe operation through power-off tripping, but can also be configured for live tripping if line monitoring is enabled.
Hot-Swapping: Supports online hot-swapping using standard dedicated slots or intelligent slot structures, avoiding downtime during module upgrades.
Isolation Barrier: Equipped with a 2500V pulse-resistant optical isolation barrier to protect high-cost backplane logic cards from strong surge impacts.
When deploying C-Series modules within the traditional Rockwell Automation Trusted TMR framework, ensure that your toolset configuration and chassis firmware are consistent with the relevant version specifications. Subtle differences in the internal maintenance report registers between A/B Series and C Series cards can sometimes lead to diagnostic inconsistencies in legacy controller networks.
