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Before you begin, Chapter, Introduction – Rockwell Automation 1785-L20C_L40C QUICK START CONTROLNET PLC-5 User Manual

Page 9: Identify the processor’s front panel components

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Chapter

1

Publication 1785-10.7 – October 1997

Before You Begin

The ControlNet network is a high-speed link that lets PLC
processors and I/O devices (e.g., I/O racks, variable speed drives,
Human-Machine Interface (HMI), and other automation devices)
exchange data. The ControlNet PLC-5 processors have one logical
ControlNet port consisting of two BNC connectors and one network
access port; these processors let you connect to the ControlNet
network.

Identify the Processor’s Front Panel Components

These pictures show the ControlNet PLC-5 processor front
panel components.

Battery Status Indicator

Processor RUN/FAULT
Status Indicator

Force Status Indicator

Channel 0 Communication

ACTIVE/FAULT Status Indicator

Memory Module Space

Battery Compartment

Keyswitch

Channel 0

DH+ Programming Terminal
Connection to Channel 1A

Channel 2 ControlNet

Status Indicators

Channel 2

ControlNet I/O Status Indicator

ControlNet Network Access

Port

Channel 1 Status Indicators

Channel 1A

Channel 1B

Memory Module Space

Battery Compartment

Channel 0

Keyswitch

ControlNet I/O Status Indicator

Channel 2 ControlNet

Status Indicators

ControlNet Network Access Port

Channel 2 ➀

Channel 1 Status Indicators

DH+ Programming Terminal
Connection to Channel 1A

Channel 1A

Channel 1B

Battery Status Indicator

Processor RUN/FAULT
Status Indicator

Force Status Indicator

Channel 0 Communication

ACTIVE/FAULT Status

Indicator

PLC-5/20C Processor

PLC-5/40C, -5/60C, and -5/80C Processors

➀ ControlNet Redundant Media Ports— BNC; dedicated

ATTENTION: Make sure you understand the anti-static environment.

The processor is shipped in a static-shielded container to guard against
electrostatic damage. Electrostatic discharge can damage integrated circuits
or semiconductors in the processor module if you touch backplane connector
pins. It can also damage the module when you set configuration plugs or
switches inside the module. Avoid electrostatic damage by observing the
following precautions.

Remain in contact with an approved ground point while handling the
module (by wearing a properly grounded wrist strap).

Do not touch the backplane connector or connector pins.

When not in use, keep the module in its static-shielded container.

Wrist strap

Introduction