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Glossary
DP Base Programming Interface for CP 5613/CP 5614
230
C79000-G8976-C108-01
DP subsystem
A DP master and all DP slaves with which the master exchanges data.
Driver
Software that allows data exchange between application programs and the CP
client.
Dual-port RAM
D
ual
P
ort
R
andom
A
ccess
M
emory - allows simultaneous access to one memory
area (RAM) by two computer units (CP and CPU).
Event
Here: an event that the CP 5613/CP 5614 can signal to the user program. There
are hardware events and software events.
Fast Logic
Property of the CP 5613/CP 5614: an input value of a slave can be monitored.
When it changes to a specified value, output data of another slave is set.
FDL
F
ieldbus
D
ata
L
ink - Layer 2 for PROFIBUS
Frame
Message from one PROFIBUS node to another.
Frame header
A frame header consists of an identifier for the frame and the source and
destination address.
Frame trailer
A frame trailer consists of a checksum and the end identifier of the frame.
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