Configuring the vme backplane jumpers – Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual User Manual

Page 26

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background image

Chapter 2

Installation

2-4

Table 2.D
Address Range SW2 (Switches 1-3)

ULA

1

1

2

3

A16 Address Range

0

on

on

on

FC00-FC3F (hex)

1

off

on

on

FC40-FC7F

2

on

off

on

FC80-FCBF

3

off

off

on

FCC0-FCFF

4

on

on

off

FD00-FD3F

5

off

on

off

FD40-FD7F

6

on

off

off

FD80-FDBF

7

off

off

off

FDC0-FDFF

1

Unique Logical Address is used by the 6200 series
programming software to determine the A16 base address of
the PLC-5/VME processor’s registers..

The VMEbus contains several daisy-chained control signals. Almost all
VMEbus backplanes contain jumpers for these control signals to allow
systems to operate with empty slots. Failing to install these jumpers
properly is a common source of problems in configuring a new
VMEbus system.

There are five jumpers per VME slot, one for each of the four bus-grant
arbitration levels and one for the interrupt-acknowledge daisy chain.
Depending on the backplane manufacturer, the jumpers can be on the
rear pins of the J1 connector or alongside it on the front of the backplane.
The PLC-5/VME processor uses two slots. Based on what is in the VME
slot, install or remove the backplane jumpers as follows:

VME Slot Content

Five Backplane Jumpers

PLC-5/VME processor’s left slot

Remove

PLC-5/VME processor’s right slot

Install

Empty slot

Install

Other VME module

Consult manufacturer’s literature

A16
address
range

Unused
(off)

System
controller

Request
level

Unused
(off)

Unused
(off)

SW2 set of switches

Up
(off)

Down
(on)

1

2

3

4

5

6

7

8

Configuring the VME
Backplane Jumpers

Five backplane jumpers

Right
connector

Left
connector

Backplane

CPU

Empty

PLC-5/VME processor

Other VME module

Note: Consult
manufacturer’s
literature.

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