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Summary of plc configuration and command rungs, 4ć12 – Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual

Page 35

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PC Ladder Programming

Chapter 4

4Ć12

We summarize the bits in module group 7 used for determining
configuration requirements and enabling operator commands (Figure 4.9).

Figure 4.9

Functions of PLC Configuration and Command Bits

17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

PLC Command Bits

Output image table word,

Module Group 7, Chassis
A & B

PLC Configuration Bits

Bit

Bit Status

Type of

No:

Function:

Set

Reset

Rung:

01

Stations 3 and 4

Used

Not Used

Unconditioned

02

Motion Detector Feedback

Used

Not Used

Unconditioned

03

Valve Stem Feedback

Used

Not Used

Unconditioned

04

Air Pressure Feedback

Used

Not Used

Unconditioned

05

AC Power Configuration

Ungrounded

Grounded

Unconditioned

06

OnĆTheĆHop

Used

Not Used

Unconditioned

07

StrokeĆandĆaĆhalf or HalfĆstroke

Not Used

Used

Unconditioned

10

Press Enable (PLC Command)

Enabled

Disabled

Conditioned

11

StopĆOnĆTop (PLC Command)

Enabled

Disabled

Conditioned

12

Latched Messages (PLC Command)

Enabled

Disabled

Conditioned

13

Lamp Test (PLC Command)

Enabled

Disabled

Conditioned

14

Dump Valve Triacs

Used

Not used

Unconditioned

NOTES: Do not use bits 00 and 15 Ć 17 for any purpose.

See Figure 4.2 for bit addresses

See Figure 4.3 through 4.8 for programming

12254

Summary of PLC Configuration

and Command Rungs