ABB CSA464AE HIEE400106R0001 DCS programmable communication unit
Electrical warning icon indicates the presence of a hazard that could result in
electrical shock.
Warning icon indicates the presence of a hazard that could result in personal
injury.
Caution icon indicates important information or warning related to the concept
discussed in the text. It might indicate the presence of a hazard that could result
in cornuption ofsoftware or damage to equipment/property.
Information icon alerts the reader to pertinent facts and conditions.
Tip icon indicates advice on, for example, how to design your project or how to
use a certain function
Although Warning hazards are related to personal injury, and Caution hazards are
associated with equipment or property damage, it should be understood that
operation of damaged equipment could, under certain operational conditions, result
in degraded process perfomance leading to personal injury or death. Therefore,
fully comply with all Warning and Caution notices.
Terminology
A complete and comprehensive list of Terms is included in the System 800xA,
Engineering Concepts instruction (3BDS100972*). The listing includes terms and
definitions that apply to the800xA System where the usage is different from
commonly accepted industry standard definitions and definitions given in standard

dictionaries such as Webster’s Dictionary of Computer Terms. Terms that uniquely
apply to this User Manual are listed in the following table.
Term/Acronym Description
AC 800M ABB Controller 800M series, general purpose process
controller series by ABB.
AC 800M Controller Any controller constructed from the units and units
connected to the AC 800M hardware platform.
Connector A Connector is a coupling device used to connect the
wire medium to a fieldbus device or to another segment
of wire.
EMC EMC is defined as the ability of a product to operate
within its intended electromagnetic environment and to
accept or emit RF disturbances within defined limits.
FDE Fault Disconnection Electronic. The FDE in field devices
ensures that the communication of the bus segment
does not fail, even in case of a short circuit in a device.
Fieldbus A fieldbus is used to interconnect field devices, such as
I/O modules, smart sensors and actuators, variable
speed drives, PLCs, or small single loop devices, and to
connect these devices to the 800xA system.
GSD File Gerätestammdaten, device communication database file
for PROFIBUS devices.
Highway Addressable
Remote Transducer
(HART)
The HART protocol is a widely-used open protocol for
communication with Smart devices.
IEC International Electrotechnical Commission.
IS Intrinsic Safety.
Linking Device The linking device connects one or more ROFIBUS PA
segments to PROFIBUS DP.