Rockwell-automation MBB BUS Extender Module Uživatelský manuál stáhnout pdf (Strana 5)

MBB October 2005

–

Issue 4

5

Triguard

SC300E MBB Bus Extender Module

Figure

2

-

1 Local

chassis

interconnections

Table

2

-

1.

Connector

location

and

type

Connector

Location

Type

J1

(I/O

bus)

MBB

rear

edge

(Figure

1

-

1)

96

-

pin

DIN

41612

type

C male

J2

(expansion

bus)

MBB

rear

edge

(Figure

1

-

1)

96

-

pin

DIN

41612

type

c male

e

(expansion

bus)

Rear

of

backplane

(Figure

2

-

2)

96

-

pin

DIN

41612

type

C female

CONTROLS AND INDICATORS

The

MBB

has

no

user

controls.

The

single

Health

indicator

(green

LED)

on

the

front

panel

illuminates

in

normal

operation.

THEORY OF OPERATION

The

main

functional

areas

of

the

MBB

circuit

are

shown

in

Figure

2

-

4.

Buffers

regulate

the

two

-

way

flow

of

data

and

control

signals

through

the

module,

under

the

overall

control

of

the

Control

Logic.

The

MBB

provides

identical

timing

for

local

chassis

I/O

operations

as

the

MPP

provides

for

main

chassis

I/O

operations.

Although

the

MBB

is

part

of

a triplicated

system,

there

is

no

redundancy

in

the

module

itself.

Redundan

cy

derives

from

the

fact

that

there

are

three

MBBs

in

each

local

chassis.

1 2 3 4 5 6 7 8 9 10 11 12

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