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GFK-0825F Chapter 1 Introduction 1-3
1
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:
Compatible with Logicmaster 90-30/20/Micro programming software, revision 6.01 or later.
Alarm processor
Password protection
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.