Selecting The I/O - Emerson PACSystems RX3i User Manual

User Manual
GFK-2409B
Discrete
Inputs
2048
2.8

Selecting the I/O

Max-ON RX3i systems may be implemented using any combination of the following I/O:
Ethernet NIUs
Genius Block
Genius Field Control
Genius Remote 90-30
Drop
Genius VersaMax
System Overview
Discrete Analog
Outputs Inputs
2048 1024
Ethernet NIUs are remote I/O drops that as based on standard 90-30 or
PACSystems RX3i hardware. These remote drops communicate to the
redundant controllers using Ethernet Global Data. These NIUs are configured
using Logic Developer PLC.
Genius blocks are intelligent, self-contained, configurable I/O modules. The
blocks are available as discrete, analog, and special purpose types, such as the
high- speed counter. Many of the blocks offer advanced diagnostic
capabilities such as open circuit, short circuit, and overload detection. Each
block is configured using a hand-held monitor.
Genius Field Control is a family of versatile, modular I/O devices. The I/O
modules are small and rugged and are available in both discrete and analog
versions.
I/O Terminal Blocks provide universal field wiring terminals for the I/O
modules, allowing I/O module types to be mixed on the same I/O Terminal
Block. The I/O Terminal block is mounted on a DIN rail.
As many as eight Field Control I/O modules (four I/O terminal blocks) can be
connected to one Bus Interface Unit. Together, they make up a Field Control
"station". The bus interface unit provides either a single or a dual, redundant
LAN connection to the Hot Standby PLCs.
Each station is configured using a hand-held monitor.
Genius Remote 90-30 drops consist of a Series 90-30 CPU, power supply, base
plate, and one Genius bus controller for a single LAN connection or two bus
controllers for a dual, redundant LAN connection. Normally, input and output
modules are installed in the base. A Scanner routine executes in the drop's
CPU. This routine scans all input devices and transmits the input states to the
Hot Standby PLCs.
The routine also monitors outputs (%Q and %AQ) in the Synchronized Data
stream from the Hot Standby PLCs. Any output data that is configured to be
active in the remote drop is captured from the data stream and then is
mapped into the Drop's output reference tables.
Configuration of the remote drop is accomplished using the Logic Developer
PLC software package. Also, a few rungs of ladder logic must be edited in
order to characterize the outputs in the drop.
Genius VersaMax I/O products feature DIN-rail mounted modules with up to
eight I/O and option modules per "rack" and up to 8 racks per VersaMax I/O
Station system. Expansion racks can be located up to 750 meters from the
main VersaMax I/O Station rack. Expansion racks can include any VersaMax
I/O, option, or communications module.
Chapter 2
Oct 2019
Analog
Outputs
256
12