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Setting cnb module nut timing, Setting cnb module nut timing -14 – Rockwell Automation 1757-SWKIT4000 ProcessLogix R400.0 Installation and Upgrade Guide User Manual

Page 172

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Publication 1757-IN040B-EN-P - March 2002

7-14 Firmware Maintenance Procedures

6. Carefully follow the on-screen prompts to complete the update.

If you have added any new CNB modules to your network, adjust the
Network Update Time (NUT) in the new modules. Refer to Setting
CNB Module NUT Timing on page 7-14. O
therwise, return to upgrade
or installation procedures as applicable.

Setting CNB Module NUT Timing

Use the procedure in the following table to adjust the NUT (Network
Update Timing) timing of all the new CNB modules in your system.

1. If this is the first time you have used Network Tools on this PC,

refer to Making First Time Network Tools Settings on page 8-9
and then continue with this procedure beginning at Step 6.

2. Click Start

Run.

ATTENTION

!

Be certain that you select the correct .nvs update file
before you acknowledge any Warning prompt and
initiate a file download to a given module. See
Table 7.A on page 7-5.

Do not update more than one module of a given
type at a time. If the on-screen prompt includes a
selection for “Update all other identical types in this
controller (only) now”, be certain this selection is
not checked

.

ATTENTION

!

You only need to adjust the NUT timing on new
CNB modules received from the factory. You can
skip this procedure if you have previously set the
NUT timing for all the CNB modules in your system.

The CNB modules must be on a ControlNet that is
plugged into a rack, cabled to the ControlNet, and
have unique MAC addresses in order to change their
ControlNet parameters (as listed in Step 10 on
page 7-15) The ControlNet parameters are updated
for all CNBs on the ControlNet at the same time.

ATTENTION

!

If you are including a Foundation Fieldbus Linking
Device in your application, review the CNB
restrictions covered in the Linking Device
Implementation Guide
in Knowledge Builder for
NUT timing data specific to Fieldbus applications.