Rockwell-automation T8431 Trusted TMR 24Vdc Analogue Input Module - 40 Manuale Utente Scaricare il pdf (Pagina 7)

Trusted

Module T8431

Issue 16 Sep 11 PD-T8431 7

igure 2 shows a simplified functional block diagram of the Trusted

4V dc Analogue Input module.

Figure 2 Functional Block Diagram

1.1. Field Termination Unit (FTU)

The Field Termination Unit (FTU) is the I/O module assembly that connects all three FIUs to a field

connector. The FTU primarily contains passive components necessary for front-end signal

conditioning. When installed in a Trusted

Controller or Expander Chassis, the FTU field connector

mates to the Field I/O Cable Assembly attached at the rear of the chassis.

The SmartSlot link is passed from the HIU to the field connections via the FTU. These signals go

directly to the I/O cable assembly and maintain isolation from the I/O signals on the FTU. The

SmartSlot link is the intelligent connection between active and standby

modules for co-ordination

during module replacement.

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Rockwell-automation T8431 Trusted TMR 24Vdc Analogue Input Module - 40 Manuale Utente Pagina 7