Summary of changes, Introduction, New and revised information – Rockwell Automation 1756-SYNCH ControlLogix SynchLink Module User Manual User Manual
Page 3: Summary of changes introduction

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Publication 1756-UM521C-EN-P - July 2004
Summary of Changes
Introduction
This release of this publication contains updated information. Change
bars, as shown in the right margin of this page, designate locations in
the publication that contain changed information.
New and Revised
Information
Table Summary of Changes.1 lists the new and revised information included in
this publication.
Other changes have been made throughout this manual and, although
not significant enough to warrant mention in the table above, they are
marked by change bars.
Table Summary of Changes.1
In this section:
This information was changed or added:
The brief description of Configuring Time Mastership
Functionality was changed to reflect changes on the module.
For more information, see page 2-5.
For 1756-SYNCH modules using firmware revision 2.18 or
greater, the module can now use its last configuration when
its connection to the owner-controller closes.
For more information, see page 3-5.
The electronic keying description has been revised.
For more information, see page 3-11.
The Multiplier description has been revised to describe how
the module may truncate values beyond the decimal point.
For more information, see page 3-17.
The CST and SynchLink Mastership description has
changed significantly.
For more information, see page 3-18.
New configuration screens are included to reflect the
1756-SYNCH module’s new role in Coordinated System Time
(CST) Mastership.
For more information, see page 5-7.
The behavior of the 1756-SYNCH module’s status indicators
has changed slightly.
For more information, see page 6-2.
Updated specifications are available.
A full description of the 1756-SYNCH module’s newly
incorporated Configuration Data Tags is available.