Rockwell Automation AADvance Controller Solutions Handbook - Manual (Page 47)

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Document: 553631
(ICSTT-RM447J_EN_P) Issue: 09:
1-35
Module Locking Mechanism
Each module carries a locking mechanism, which secures the module onto its base unit.
The locking mechanism is in the form of a clamp screw, visible on the front panel of
the module and engaged by a quarter turn of a flat blade screwdriver. The module
senses the locking mechanism position and notifies the controller accordingly. This acts
as an interlock device and prevents the module from going on-line when it is not in the
locked position.
Termination Assemblies
The AADvance system provides a range of termination assemblies to connect field
wiring to the I/O modules. A termination assembly is a printed circuit equipped with
screw terminal blocks for the field wiring (in some cases fuses) and connectors for the
plug-in I/O modules. Termination assemblies are matched to their relevant I/O
modules by the coding pegs and sockets and come in three types: simplex, dual or
triple. Therefore, they can accommodate one two or three I/O modules. Each
assembly provides connections for up to 16 channels but can accommodate 8 or 16
channel modules.
Termination assembly design gives the controller greater flexibility for building
redundant and fault tolerant systems. I/O module(s) plugged into its matched
termination assembly can provide simplex, dual or triple modular redundant
configurations.
The version illustrated is a simplex termination assembly for a digital input module.
The field wiring connectors are located to the left, the fuses have a cover (shown
open) and the module sockets are to the right.