Connect to the network, Ext power 5vdc 0,25a – Rockwell Automation 1788-CNCHKR ControlNet NetChecker User Manual User Manual

Page 12

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12 ControlNet NetChecker

Rockwell Automation Publication 1788-UM001B-EN-P - August 2012

Connect to the Network

Connect the NetChecker to the network in one of these ways:

•

Use the provided cable and BNC T, as shown in the left example. This method requires
you to break the trunk to install the BNC T, which disrupts a running system. The
BNC T is intended for temporary use only. We do not recommend leaving the BNC T
installed.

•

Use the provided BNC T with a 1786-TCAP tap and 1786-BNCP barrel connector, as
shown in the right example. The tap, 1786-TCAP, and 1786-BNCP connector must be
purchased separately. The tap can be left in the system for testing purposes, but the tap
must not be left unconnected. Install a 1786-TCAP on all unused taps.

If you do not want to open the network, you can install some free taps for testing. With a
redundant network, you can temporarily disconnect one of a node’s taps from the network and
test from this. Recognize, however, that you are removing a node from the network. Test that
node later from a different location on the network.

INPUT

Node On Line

Push ON

Control Net™ Net Checker

TRAFFIC

L M

1 Min

Max

Low Battery

Bargraph

Diagnostic

Signal (x1/4)
GND
Trigger

OFF
ON
Push ON

Output to Scope

Power Supply

Node Finder

Threshold

Buzzer

Stow Edges

Illegal Framing

Pass/Fail

Ext

Power

5VDC

0,25A

Poor Signal

Quality

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3231-M