Siemens S7-300 Installation And Operating Manual page 335

HART commands
The HART field device works as a HART device and is controlled by the master via HART
commands. The master assigns the HART parameters or requests data in the form of →
HART replies.
HART communication
Transmission of data between a master (e.g. HART analog module) and a HART device (→
HART field device) via the → HART protocol.
HART Communication Foundation
The HART Communication Foundation (HCF) was founded in 1993 to publish and further
develop the HART protocol. HCF is a non-profit organization, which is financed by its
members.
HART communicator
The HART communicator contains the original parameter assignment tool of Fisher-
Rosemount LTd. for → HART field devices, and is connected directly to their terminals. The
HART communicator is used to assign the HART parameters.
HART field device
Intelligent field device furnished with a → HART-compatible additional function that allows it
to understand → HART communication.
HART interface
Part of a system that can be used to connect a → HART field device. The HART interface
represents the master for the field device. However, the HART interface acts as a slave to
the system and can be supplied from various masters on the system. For example, the →
HART parameter assignment tool represents a master. Another master is the automation
system itself.
HART parameter assignment tool
The HART parameter assignment tool is used for convenient assignment of the → HART
parameters. It can be a → HART communicator or a parameter assignment tool integrated in
the system, e.g.,
HART parameters
HART parameters describe the assignable properties of → HART field devices that can be
modified via the → HART protocol. A → HART parameter assignment tool is used to assign
the parameters.
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
SIMATIC PDM
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Glossary
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