Rockwell-automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User M Instrukcja Użytkownika Pobierz pdf (Strona 29)

Chapter 2

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2-11

Relay Contact Output Modules Product Data, publication 1771-2.181, for

more information.

The control coprocessor performs the following functions at power up:

bootstrap routine

OS-9 initialization

A-B initialization (if direct-connect)

invokes either a user start-up program or the OS-9 shell

(command interpreter)

hardware initialization (RAM disk, OS-9 clock, serial ports)

fault-relay energizing

You will get the following normal indications on the main module after

power up:

CPU LED blinks green four times and then remains lit green

BATT LED blinks red four times and then is not lit (this indicates a

properly charged battery)

You will get the following normal indication on the optional serial

expander module after power up: the four character positions on the

ASCII display blink four times and then are not lit.

When removing a main module in direct-connect or standalone mode, first

verify that power is off to the 1771 I/O chassis; then, remove the module

by reversing the installation procedure. If in direct-connect mode, remove

the module from the PLC-5 programmable controller.

When removing a serial expander module, first verify that power is off to

the 1771 I/O chassis; then, release the locking tab and remove the module

from the I/O chassis.

After you complete the installation and powerup of the control

coprocessor, proceed to Chapter 3. Chapter 3 instructs you on how

to connect a programming terminal to the control coprocessor and

establish communication.

Apply Power to the

Control Coprocessor

Remove the Control

Coprocessor

What to Do Next

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Rockwell-automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User M Instrukcja Użytkownika Strona 29