Siemens SIMATIC NET PROFIBUS Manual de servicio Pagina 236

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Glossary
DP Base Programming Interface for CP 5613/CP 5614
236
C79000-G8976-C108-01
Setup time
A PROFIBUS bus parameter - The setup time specifies the minimum time between
receiving an acknowledgment and sending a new call.
Sign of life monitoring
A monitoring time that can be set on a DP slave to detect failure of the controlling
DP master.
SIMATIC NET
Siemens Network and Communication - Product range for networks and network
components from Siemens.
Slot Time
A PROFIBUS bus parameter - The slot time (TSL) is monitoring time between a
sender sending a frame and receiving the acknowledgment of the receiver.
Software event
Here: an event that must be fetched with the DP_get_result function.
SYNC mode
The SYNC mode is a DP mode in which several or all DP slaves transfer data to
their process outputs at a certain time. The time at which the data is transferred is
indicated in the SYNC command (a control command for synchronization).
System
The entire electrical equipment belonging to a plant/system including
programmable controllers, devices for operator monitoring and control, bus
systems, field devices, drives, supply lines.
Target rotation time
A PROFIBUS bus parameter - The token is right to send for a node on PROFIBUS.
A node compares the actual token rotation time it has measured with the target
rotation time and depending on the result can then send high or low priority frames.
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