
Glossary
DP Base Programming Interface for CP 5613/CP 5614
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CPU
C
entral
P
rocessing
U
nit - here processor of the PC
CPU load
Load on the CPU of the PC - here: resulting from DP communication
Data_Ex
The slave is ready for productive operation
Data transmission rate
Transmission rate on the bus (unit: bps). A bus parameter for PROFIBUS. The
data transmission rate used depends on various conditions such as distance.
DB
Here:
D
ata
b
ase - The local database describes the communications network from
the view of the local system.
Deadlock
When more than one parallel process (here: threads) become blocked (A waits for
B and B waits for A).
Distributed I/Os
An input/output module used in a distributed configuration. The connection
between the programmable controller and the distributed I/Os is established via
the PROFIBUS bus system. For the programmable controller, the distributed I/Os
are no different from local process inputs/outputs.
DP
Distributed peripheral I/Os, communication protocol for PROFIBUS complying with
EN 50 170 Volume 2.
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