ABB NTU-7A9/M0 Isolated Analog Input Module

Isolated Analog Input Module Manufacturers ABB, Bailey Model(s) ABB Bailey Infi 90, ABB Bailey Infi 90 and Net 90

Estimated Shipping Size Dimensions: 3.0" x 8.0" x 8.0" (7.6 cm x 20.3 cm x 20.3 cm)

Weight: 2 lbs 2.1 oz (1.0kg )

Isolated Analog Input Module

Bailey DCS Overview

The Net 90 DCS and the INFI 90 DCS are products of Elsag Bailey Process

Automation N.V., now ABB, and are marketed and installed worldwide.

Net 90 and INFI 90

The Net 90 DCS, introduced in the 1980, and the INFI 90 DCS, introduced in

the 1988, are widely used for process control in process oriented plants, in

industries such as pulp and paper, power generation, cement making, glass,

chemical and many others. In these industries the Bailey DCS system are

respected for the high level of process automation reliability that they bring.

Data Highways

All DCS systems on the marketplace rely on a “data highway” for high speed

data communications between all of the distributed components of the DCS

system. Over the life of the Net 90 and INFI 90 product lines, three primary

data highways have been used: Plant Loop , Super Loop and INFI Net.

Connecting to Bailey DCS

The Driver may be connected to any Bailey DCS via a gateway device, variously

called a Computer Interface Unit (CIU), an INFI-NET to Computer Interface

(ICI) or a Plant Loop to Computer Interface (PCI). These interfaces, designed

for connection of external devices to the Bailey DCS, allow the OPC Data Server

to communicate with the Bailey DCS modules.

Applications

The binary input board 23BE40 performs the following processing functions for different types of signals:

 Digital filtering to suppress contact jumping

 Suppression of technically induced chattering signals

 Intermediate position suppression and double indication monitoring

 Consistency check of all binary input channels assigned to digital measurement values

The 23BE40 has a buffer for temporarily storing 50 time-stamped event messages in chronological order, designated for transmission to the communication unit.

The board's microcontroller handles all time-critical tasks for the parameterized processing functions. In addition, it communicates interactively with the RTU560 system bus.

All configuration data and processing parameters are transmitted via the RTU560 system bus.

All configuration data and processing parameters are loaded from the communication unit via the RTU560 bus.

The board is equipped with a serial interface to the RTU560 system bus.

During initialization and operation, the board performs a series of tests. If a fault occurs, it is reported to the communication unit.

All fault conditions affecting the board's functionality are indicated as general fault signals by means of light emitting diodes (ST).

Faults in the board are detected by the communication unit.