1MAC306892-MB C Section 1
Introduction
RER620 7
Communication Protocol Manual
sorted per function. The manual can be used as a technical reference during the 
engineering phase, installation and commissioning phase, and during normal service.
The communication protocol manuals describe the communication protocols supported by 
the protective relay. Each manual concentrates on vendor-specific implementations. 
The point list manual describes the outlook and properties of the data points specific to the 
protective relay. The manual should be used in conjunction with the corresponding 
communication protocol manual.
1.3.2 Document revision history
1.3.3 Related documentation
Product-specific point list manuals and other product series- and product-specific manuals 
can be downloaded from the ABB web site http://www.abb.com/ substationautomation.
1.4 Symbols and conventions
1.4.1 Safety indication symbols
Although warning hazards are related to personal injury, it should be understood that 
operation of damaged equipment could, under certain operational conditions, result in 
Document revision/date Product version History
A/11/23/2010 1.0 First release
B/10/31/2011 1.1 Content updated to correspond to the 
product series version
C/07/20/2017 1.3 Content updated to correspond to the 
product series version
Download the latest documents from the ABB web site 
http://www.abb.com/substationautomation.
The caution icon indicates important information or warning related to the 
concept discussed in the text. It might indicate the presence of a hazard 
which could result in corruption of software or damage to equipment or 
property.
The information icon alerts the reader to important facts and conditions.
The tip icon indicates advice on, for example, how to design your project 
or how to use a certain function.