GE IC687BEM742 Programmable Controller

GE IC687BEM742 Programmable Controller

Features

Interfaces FIP or World FIP I/O serial bus to IC697 PLC 

Installs in VME Integrator Rack; has 2 Megabytes of RAM and 2 Megabytes of Flash memory 

Four FIP Bus Controllers per PLC system 

Two FIP bus channels provide redundant bus capability 

RS-485 serial port attaches to PC for easy in-system firmware upgrade (no PROMS to change) 

Pushbutton for resetting Bus Controller and enabling Bus Controller to accept upgrades 

FIP bus faults managed by PLC Alarm processor Function 

Six status LEDs 

Software configuration (no DIP switches or jumpers to set

Functions

This FIP Bus Controller (FBC) is a two channel bus controller that occupies a single half-slot in an IC697 PLC VME Integrator rack. The FBC is configured with MS-DOS or Windows based programming software. I/O devices on the FIP bus are scanned asynchronously by the bus controller and I/O data is transferred to the CPU once per scan. Up to 31 Bus Controllers, of any kind, can be included in an IC697 PLC system. Of the 31 Bus Controllers, a maximum of four can be FIP Bus Controllers. A FIP bus may serve: 

Remote Drops, IC693 I/O racks that are interfaced to the bus through Remote I/O Scanner Modules. Each remote drop can include any mix of discrete and analog I/O modules. 

Field Control Stations, Field Control I/O modules that are interfaced to the bus via a FIP Bus Interface Unit (BIU).

Installing a FIP Bus Controller

Installation should not be attempted without referring to the applicable Programmable Controller Installation Manual and the FIP Bus Controller User’s Manual. 

Be sure that rack is powered down. 

Position the FIP Bus Controller at its intended slot location in the VME Integrator rack.

Slide the FIP Bus Controller into the card guide until it is aligned with the connector on the rack backplane. 

Push the module into the connector until it clicks onto the rack rails. Be sure that the board has seated properly in the connector. Tighten screws to hold module in place.
Bus connections to the connectors on the front of the module can now be made.

The FIP Bus Scan

A FIP bus scan (also referred to as a macro-cycle) consists of a fixed set of operations that are repeated as long as the RUN LED of the FIP Bus Controller is ON. The length of the macro-cycle, once configured never varies. Therefore, the bus scan is fixed.

During the bus scan, the FIP Bus Controller: 

Broadcasts all output data to each device. 

Independently tests the presence of any remote devices (optional).

Allows the broadcast of any aperiodic I/O data by any 3rd Party device but only for the maximum time configured (optional). 

Allows the transmission of any messages by any device but only for the maximum time configured. 

Receives a diagnostic message from each IC6** device. 

Receives all input data sent by each device.

Models that may be required：

GE IC660BBD022 16-Circuit Source/Sink I/O Blocks

GE IC660BBD101 115VAC 8-Circuit Discrete I/O Block   

GE IC660BBA025 Current-source Analog Output Blocks 

GE IC660BBA100 Voltage/Current 4 Input/2 Output Analog Blocks