System Overview; Dimensions Of The Rsti-Ep Components - Emerson PACSystems RSTi-EP User Manual

User Manual
GFK-2958J
1.1

System Overview

The modular RSTi-EP system supports common fieldbus systems and conforms to IEC
61131-2. Each station is assigned a bus address in the fieldbus structure. Only the network
adapter is fieldbus-specific; the I/O modules are independent of the fieldbus.
Up to 64 active I/O modules can be combined in a RSTi-EP station. The largest expansion
possible depends on the maximum amount of data transmitted by the selected fieldbus,
the configuration, parameter, or process data for the module types provided. The
following components belong to the RSTi-EP product series:
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Dimensions of the RSTi-EP Components

Network adapter
I/O module
End plate
End bracket
Introduction
Fieldbus network adapter (gateway): Head station for converting the respective
fieldbus protocol on the RSTi-EP system bus
Active I/O modules:
Modules with digital input (DI) or digital output (DO) with 2, 4, 8 or 16
—
channels
Modules with analogue input (AI) or analogue output (AO) with 4 or 8
—
channels
Pulse width modulation modules (PWM)
—
Digital counter modules (CNT)
—
Passive I/O modules (no fieldbus communication)
24 V power-feed modules (PF) for input or output current
—
Potential distribution modules (AUX)
—
Empty modules acting as placeholders (ES)
—
Functional safety modules
Safe power-feed modules (EP-19xx) 24 V for output current, providing one or
—
two inputs (with two channels each) for safety circuits
Mechanical fixing elements
End bracket
—
End plate
—
Height (H)
120.0 mm (4.72 in)
120.0 mm (4.72 in)
120.0 mm (4.72 in)
120.0 mm (4.72 in)
Width (W) Depth (D)
52.0 mm (2.05 in) 76.0 mm (2.99 in)
11.5 mm (0.45 in) 76.0 mm (2.99 in)
3.5 mm (0.14 in) 76.0 mm (2.99 in)
8.0 mm (0.32 in) mm (1.42 in)
Chapter 1
Oct 2019
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