1771-6.5.86, 6 - program command-bit interaction – Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE User Manual

Page 72

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Chapter

6

6-1

Select Command and Status Bits to Sequence

Machine Operation

In this chapter, we provide you with tables of command and status bits that
you use to write ladder logic to:

implement manual functions such as jog, set outputs, and stop
step your QDC module through machine cycles

We suggest how to assess your logic requirements and based on those
requirements how to use bit tables to write your machine’s sequential
ladder logic that depends on your machine’s hydraulic configuration.

You must add your own ladder logic according to your machine’s
sequencing requirements.

If you need to

Refer to this table for required

command and/or status bits

Execute phases of the Inject mode

without interruption

no additional ladder logic required

Jog your machine in manual mode,

set outputs, or stop

6.A

Start the next profile or movement

6.B and 6.C

Interrupt ram (screw) and clamp

movement between profiles

6.D

Trigger new events

6.E

Review all available status bits

6.F

Review all available command

and configuration bits

6.G

Important: For a more thorough description of all command and status
bits presented in this chapter, refer to Section 3 of the Plastic Molding
Module Reference Manual (publication 1771-6.5.88).

Chapter Objectives

Assess Your

Logic Requirements

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