Description - Rockwell Automation ICSTT-RM280N-EN-P Manual

Trusted TMR 24Vdc Digital Output Module – 40 Channel

1. Description

1. Description
The TMR 24 Vdc Digital Output Module is a member of the Trusted range of Input/Output
(I/O) Modules. All Trusted I/O Modules share common functionality and form. At the most
general level, all I/O Modules interface to the Inter-Module Bus (IMB) which provides power
and allows communication with the TMR Processor. In addition, all Modules have a field
interface that is used to connect to Module specific signals in the field. All Modules are
Triple Modular Redundant (TMR).
Figure 1 Module Architecture
All High Integrity I/O Modules are made up of 4 sections: Host Interface Unit (HIU), the Field
Interface Unit (FIU), the Field Termination Unit (FTU), and the Front Panel Unit (or FPU).
Rockwell Automation Publication ICSTT-RM280N-EN-P Issue 14 3