Glossary
CM 1243-5
44 Operating Instructions, 04/2011, C79000-G8976-C246-01
DP master (class 2) or DP master 2
The DP master 2 provides services such as :
− Reading input/output data
− Diagnostics
− Global control
DP master system
A DP master and all DP slaves with which this DP master exchanges data.
DP mode
Communication between the DP master and DP slaves can be divided into four modes:
OFFLINE, STOP, CLEAR, RUN (corresponds to OPERATE according to the DP standard).
Each of these modes is characterized by defined actions between the DP master and the DP
slaves.
DP module name
Name of one of the DP I/O modules entered in the DP module list.
DP module type
Name to identify a DP I/O module in the generic station data of a DP slave in compliance
with EN 50170, Vol 2.
DP protocol
The rules for communication and data transmission according to the communications
standard for the field area (IEC 61158) and PROFIBUS standard (EN 50170).
Note:
The DP protocol is used in the distributed peripheral I/O (DP) and allows distributed use of
numerous modules and other field devices in the immediate vicinity of the process.
DP slave
A node with slave functionality on PROFIBUS DP
DP slave name
To identify a DP slave in the configured DP configuration, a DP slave name is entered in the
DP slave list.
DP subnet
PROFIBUS subnet on which only distributed I/O is operated.
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