GE Fanuc Automation

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 (see the

illustration, left).

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.

Field Control Features

Features and benefits of Field Control include:

„ wiring savings

„ better 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:

ƒ Bus Interface Unit. The illustration below shows a Genius Bus Interface Unit.

ƒ I/O modules

ƒ Micro Field Processor

ƒ 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.

Genius Bus Interface Unit

The Genius Bus Interface Unit (IC670GBI002 or IC697GBI102) interfaces Field Control I/O

modules to a host PLC or computer via a Genius bus. It can exchange up to 128 bytes of input data

and 128 bytes of output data with the host, each Genius bus scan. It can also handle Genius

datagram communications.

The intelligent processing capabilities of the Genius 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 Genius 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 Monitor.

The Genius Bus Interface Unit can be used on a bus controlled by redundant CPUs or Bus

Controllers. It can also be used on a dual bus.

The Bus Interface Unit mounts on a Bus Interface Unit Terminal Block. It 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, which included with the BIU, has connections for power

wiring and single or dual communications cables. It has built-in bus switching circuitry, allowing

the Bus Interface Unit to be used on a dual (redundant) Genius bus (no external Bus Switching

Module is needed). The Bus Interface Unit Terminal Block stores the configuration parameters

selected for the station.

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.

Micro Field Processor

The Series 90 Micro Field Processor (MFP) is a Micro PLC that provides local logic within a Field

Control station. The Micro Field Processor is the same size as a Field Control I/O module and

occupies one of the eight available I/O slots in a Field Control station.

MFP features include:

ƒ Compatible with Logicmaster 90-30/20/Micro programming software, revision 6.01 or later.

ƒ Alarm processor

ƒ Password protection

ƒ Built-in communications port that supports Series 90 protocols (SNP and SNPX)

The Micro Field Processor requires a Genius Bus Interface Unit revision 2.0 or later.

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 can be used

to provide additional common terminals if needed.

For more information, please refer to:

Chapter 3: 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 2: Description, which describes the Bus Interface Unit and Bus Interface Unit Terminal

Block in detail.

Chapter 4, Operation, which explains how the Genius Bus Interface Unit services I/O.

Chapter 5: Hand-Held Monitor Configuration, which explains how to configure I/O modules.

The Series 90 Micro Field Processor User's Manual (GFK-1171), which describes the Micro