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November 20, 2025 BY
IN GE

GE I/O Terminal Blocks and Auxiliary I/O Terminal Blocks

I/O Modules

Field Control I/O Modules are available in many types to suit a wide range of application

needs. Modules can be installed and removed without disturbing field wiring. One or

two I/O modules may be mounted on an I/O Terminal Block.

I/O Terminal Blocks and Auxiliary I/O Terminal Blocks

An I/O Terminal Block provides mounting, electrical, and field wiring connections.  Each half

of the I/O Terminal Block can be mechanically keyed to accept only an I/O module of a

specific type. Auxiliary I/O Terminal Blocks can be easily attached to an I/O Terminal Block.

They provide the extra connections needed for analog and high-density discrete modules.

For more information, please refer to:

Chapter 2: Installation, which explains wiring to the Bus Interface Unit, and explains

how to install the Bus Interface Unit module on the Field Terminal Block.

Chapter 5: Operation, which explains how the Profibus Bus Interface Unit services I/O.

The Field Control I/O Modules User’s Manual, which describes I/O modules and I/O

Terminal Blocks. This manual also explains module installation and field wiring.
November 20, 2025 BY
IN GE

Fanuc Profibus Bus Interface Unit

Profibus Bus Interface Unit

The Profibus Bus Interface Unit interfaces Field Control I/O modules to a Profibus I/O bus.

The intelligent processing capabilities of the Profibus Bus Interface Unit allow the

configuration of features such as fault reporting, selectable input and output defaults, analog

scaling and analog range selection for the modules in the station. In addition, the Profibus

Bus Interface Unit performs diagnostic checks on itself and its I/O modules, and relays

diagnostic information to the host (if configured for fault reporting) and to a Hand-held

Programmer.

The Bus Interface Unit mounts on a Bus Interface Unit Terminal Block. The Bus Interface

Unit can be removed and replaced if necessary without removing the wiring or

reconfiguring the I/O station.

Bus Interface Unit Terminal Block

The Bus Interface Unit Terminal Block provides connections for power wiring and single

or dual communications cables. The Bus Interface Unit Terminal Block stores the

configuration parameters selected for the station.
November 20, 2025 BY
IN GE

GE Features and benefits of Field Control

Field Control Features

Features and benefits of Field Control include:

wiring savings

more up time

easy installation and maintenance

spare parts savings

low cost

feature flexibility

open architecture / adaptable to a variety of networks

distributed I/O

small, compact I/O modules with generic terminal wiring bases

DIN rail mounted

Field Control Modules

There are three basic types of Field Control modules:

Bus Interface Unit. The illustration below shows a Profibus Bus Interface Unit.

I/O modules

Terminal Blocks:

Bus Interface Unit Terminal Block.

I/O Terminal Blocks, each of which accommodates two I/O modules.

Auxiliary Terminal Blocks. These optional terminal strips can be connected to the

side of an I/O Terminal Block if extra common terminals are needed.
November 20, 2025 BY
IN GE

GE Field Control is a family of highly-modular distributed I/O

Field Control is a family of highly-modular distributed I/O and control products. They

are suitable for use in a wide range of host architectures.

The heart of the Field Control system is the Bus Interface Unit. The Bus Interface Unit

provides intelligent processing, I/O scanning, and feature configuration for a group of up to

eight I/O modules. Together, the Bus Interface Unit and its modules make up a Field Control

station.

The Bus Interface Unit and I/O modules are enclosed in sturdy, compact aluminum

housings. Bus Interface Unit and I/O modules bolt securely to separate Terminal Blocks,

which provide all field wiring terminals. The I/O Terminal blocks are generic and allow

different I/O module types to be mounted on the same base.  I/O Terminal Blocks are

available with box-type terminals, barrier-type terminals, or wire-to-board connectors.

All Terminal Blocks must be mounted on a DIN rail. The DIN rail, which serves as an

integral part of the grounding system, can also be mounted on a panel.
November 20, 2025 BY
IN ABB

ABB RVT Programmable protection thresholds

Programmable protection thresholds

Programmable thresholds allow you to protect the

capacitor bank against over- and under-voltage, over

temperature and excessive harmonic distortions.

Network information and capacitor bank monitoring

The RVT computes and displays network and capacitor

bank information such as voltage, current, harmonics

spectra and much more.

Multi-language support

The RVT allows you to choose its working language

between English, French, German, Spanish and Chinese.

High ambient temperature rating

The RVT is suitable for harsh ambient environments thanks to

its maximum ambient temperature rating of 70°C.

Multi-voltage and multi-frequency

The RVT may be connected to network voltages in the range

100-460Vac, 50/60Hz. RVT’s measurement voltage is up to

690Vac without connecting any additional PT.
November 20, 2025 BY
IN ABB

ABB RVT High ambient temperature rating

High ambient temperature rating

The RVT is suitable for harsh ambient environments thanks to

its maximum ambient temperature rating of 70°C.

Multi-voltage and multi-frequency

The RVT may be connected to network voltages in the range

100-460Vac, 50/60Hz. RVT’s measurement voltage is up to

690Vac without connecting any additional PT.

Works with 5A and 1A CT’s

Both 5A and 1A CT’s may be connected to the RVT.

Digital inputs

Two digital inputs can be used for day/night power factor and

external alarm respectively.

Two alarm relay outputs and fan / warning output

RVT has two alarm relay outputs (NO and NC) and a FAN/

Warning relay output.
November 20, 2025 BY
IN ABB

ABB RVT is also a MV and HV bank controller

Other powerful features

RVT is also a MV and HV bank controller

By connecting a PT to the RVT voltage measurements inputs,

and setting the proper [V scaling] according to the PT ratio,

the RVT is able to control a MV or HV capacitor bank just like

a LV capacitor bank.

Easy commissioning

The fully automatic set-up of the RVT parameters totally eases

the bank commissioning process.

Menu navigation

The clever organization of menus and sub-menus ensures

menu navigation easy and intuitive.

Guided navigation and programming

Online help information guides you step by step in the menu

navigation and RVT programming.

Communication

RVT has versatile communication interfaces: in addition to

Ethernet 10/100BASE-T and USB2.0. the RVT supports

RS485 connection as well. All parameters settings and

measurements are accessible remotely.

Fully automatic set-up

C/k (sensitivity), active outputs, switching sequence and

phase shift can be automatically set-up.
November 20, 2025 BY
IN ABB

ABB RVT Ethernet connection


Touch Screen

3.5 inch colorful QVGA touch screen eases your parameter

settings.

Ethernet connection

With ABB PQ Link software, you may easily plug an RJ

45 to RVT and communicate with the controller through a

10/100BASE-T interface anywhere in the world.

USB connection

RVT supports USB2.0 connection; which makes it possible to

connect to a computer via a widely used USB cable to access

all RVT parameters.

Up to 8 Temperature alarm outputs

RVT can monitor 8 hot spots in your bank through eight

daisy-chain connected temperature probes.

Real time clock

RVT real time clock tracks and logs date and moment of each

alarm and event.

Hardware and software lock

Both hardware and software locks are equipped in the RVT

for bank setting protections from any unauthorized access.
November 20, 2025 BY
IN ABB

ABB Power Factor Controller RVT Distinct

Distinct features

Power factor correction for both balanced and unbalanced loads

In modern day installations, unbalanced loads are increasingly

common, especially in residential or commercial buildings.

RVT addresses your power factor issues from both single

phase loads (L-L or L-N) and three phase balanced/

unbalanced loads. RVT is capable of compensation to

each phase individually or compensation to three phases

globally. Another distinct feature of RVT is individual phase

measurements and energy calculations.

Complete three phase measurements

− Active power (kW) – 3ph/1ph

− Apparent power (kVA) -3ph/1ph

− Reactive power (kvar) -3ph/1ph

− Reactive power (kvar) to reach the target cos ϕ -3ph/1ph

− Voltage (V) -3ph/1ph

− Current (A) -3ph/1ph

− Cos ϕ-3ph/1ph

− Total Harmonic Distortion on Voltage/Current : THD V/I (%)

− Voltage/Current Harmonics : H2 up to H49 (%-spectrum)
November 20, 2025 BY
IN ABB

ABB The Endura AZ20 transmitter

The Performance Log holds up to 100 time-stamped events.

When the log is full, the oldest data is overwritten by new

entries. The log contains details of measurements and

coefficients for all calibrations and accuracy checks.

2 Relay outputs and a traditional analog output are fitted as

standard, with the option of adding a second analog output or 2

digital inputs/outputs (I/O).

The Endura AZ20 transmitter is equipped with HART

communication as standard, supported by a full Device Type

Manager (DTM) to enable remote access to the analyzer through

a user-friendly graphical interface. The DTM provides full access

to the transmitter setup, logged data and diagnostics

information as well as live data.

The IrDA standard infrared communication port can also be

used with the DTM to upload and download device

configurations. In addition, it enables data logged values and

diagnostics to be viewed on a hyperterminal interface or a PC.

The device’s firmware can also be upgraded using this port.

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