Category: GE

Locations for Field Control

The Profibus Bus Interface Unit and Field Control I/O modules can be located on

equipment, in junction boxes, inside panels, behind operator stations, and in other

locations where space is limited. The area should be clean, free of airborne contaminants,

and provide adequate cooling. Field Control modules can be installed in NEMA

enclosures. The enclosure can be as little as 4 inches (10.16 cm) deep. A 35mm x 7.5mm

DIN rail is required.

The Bus Interface Unit Terminal Block and up to four I/O Terminal Blocks are grouped

together  using the connection cables provided. All of the I/O Terminal Blocks in a group

must be connected either before or after the Bus Interface Unit. A Bus Interface Unit

may not be connected between I/O Terminal Blocks.

The information in this manual is applicable for GE Fanuc Series 90-70 and Series 90-30 programmable

controller products, Genius I/O products,  and Field Control Distributed I/O and Control products.

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.

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.

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.

Overview

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.

Control Hardware

The 151X1235DB15SA03 EX2100e regulator system is available in multiple configurations to

provide control flexibility for thyristor and regulator systems.

For small regulator systems, two pulse width modulation (PWM) power converter modules

use insulated gate bipolar transistors (IGBTs) to provide up to 35 A or 120 A nominal output.

These systems can support the following applications:

• Saturated current transformer/power voltage transformer (SCT/PPT) regulators

• Brushless exciter regulators

• Direct current (dc) rotary exciter regulators

In SCT/PPT regulator and dc rotary exciter regulator applications,

the EX2100e regulator system can reduce the effects of exciter time constants.

It combines direct measurement of the generator excitation voltage and excitation current to improve response to system transients.

The architecture is a single control with a single power control module (PCM) or dual control with dual PCMs,

and includes a customer interface subsystem, optional diagnostic local operator interface (touch screen),

optional control operator interface (COI) remote touch screen interface, control power input module, and PCM.

The PCM consists of a bridge interface subsystem, power bridge, optional AC and DC filtering networks,

and AC (ac) and/or DC isolation devices. To expand input and output (I/O) capabilities, VersaMax® or Mark* VIe Control IONet I/O modules can be added.

Excitation control unit system 151X1235DB15SA03

151X1235DB15SA03 EX2100e excitation control regulator system is GE’s latest advanced control system for steam,

gas or hydroelectric generators, suitable for new units and modified units.

Control hardware and software design are closely coordinated with

GE’s system and control engineering to ensure a true system solution.

Integration between the excitation control system, turbine control system,

static start control system, integrated control system (ICS) and human machine interface (HMI) is seamless.

For stand-alone retrofit applications, integration with the customer’s distributed control system (DCS) is supported via serial or Modbus® Ethernet.

This document is specifically for the application of the 35 A and 120 A (nominal) series EX2100e control regulator systems.

It combines direct measurement of the generator excitation voltage and excitation current to improve response to system transients.

The architecture is a single control with a single power control module (PCM) or dual control with dual PCMs,

and includes a customer interface subsystem, optional diagnostic local operator interface (touch screen),

optional control operator interface (COI) remote touch screen interface, control power input module, and PCM.

The PCM consists of a bridge interface subsystem, power bridge, optional AC and DC filtering networks,

and AC (ac) and/or DC isolation devices. To expand input and output (I/O) capabilities, VersaMax® or Mark* VIe Control IONet I/O modules can be added.

Features:

. Direction of each 8-bit port is individually programmable

.64 mA sink current capability (15 mA source) .

. Separate board address decoding for control and data registers .

. Built-in test logic for fault detection and isolation .

. Highly reliable DIN-type I/O connectors .

. 8-bit, 16-bit, 32-bit transfers

The VMIVME-2510B is a member of the VMIC Megamodule family, which is designed for universal programming.

The subsystem can be configured with consecutive I/O addresses to conserve memory.

These products (VMIVME-1110. VMIVME-2120. VMIVME-2130. and VMIVME-2510B) are designed with

two sets of board address switches to provide efficient memory address mapping for CSR and I/O addresses.

The CSR address switches can be configured so that all CSRs on the various boards in the system can be mapped to contiguous memory locations.

Megamodule products are also designed to support 8-bit, 16-bit and 32-bit data transfers.

Specific hardware has been designed into the VMIVME-2510B to support the built-in test functions.

The VMIVME-2510B supports off-line and on-line fault detection and isolation. The front panel Fail LED is used to indicate when a fault exists on this board.

The LED is illuminated at power-up or reset. The LED can be turned off after successfully completing board level diagnostics.

The IC693CPU363 is manufactured by GE Fanuc. This module is a controller

from the Series 90-30 of Programmable Logic Controllers (PLC). 

This controller is responsible for executing the user program stored within its user memory

as well as managed communication exchanges between compatible devices such as programming workstations,

Human Machine Interface (HMI), Supervisory Control and Data Acquisition (SCADA), Databases and other 3rd party hardware and devices.

The IC693CPU363 features a 80386EX processor with clock speed of 25 MHz and typical scan rate of 0.22 ms per 1K of logic for Boolean contacts.

The embedded memory of this controller amounts to 240KB which is internally partitioned

to accommodate different registers and internal functions.

It has Two (2) serial ports, One (1) port having a physical interface of RJ45 while the other port having a 15-pin sub-D connector,

both supporting RS232 and RS485 communication standards.

It also has a tertiary RS485 port which is situated on the power supply.

All these ports allow download, upload of user program, perform commissioning tasks and fine tuning of the program.

These ports operate independently and may be configured for simultaneous operation to accommodate

other data exchange functions such as communication with visualization components.

Other communication protocols supported by the IC693CPU363 are Ethernet, FIP, Profibus, GBC, GCM, GCM+ option modules.

The on-board CPU maintains data structures

in shared local memory for buffering measurements and

queueing control commands. Measurement functions are

also supported by a Continuous Measurement Mode in

which measurements are made repeatedly without host CPU

involvement. I/O connections are routed through

high-density connectors located on the front panel with

support for differential and single-ended signal levels. The

user data exchange interface for measurement and

generation modes complies with ANSI/IEEE Standard

754-1985 for 32-bit floating-point arithmetic. Integer modes

operate with two’s complement signed arithmetic and with unsigned arithmetic.

TECHNICAL DESCRIPTION— The VMIVME-2540 ICC is comprised of three sections: the

VMEbus slave DTB interface which arbitrates for the local

CPU resources, the CPU with firmware and support logic,

and the circuitry which implements the measurement and control functions.