User manual

PTQ-PDPMV1 ♦ Quantum Platform Glossary of Terms
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 301 of 306
August 12, 2014
Glossary of Terms
A
Active Master
An active Master is controlled by the Primary PLC and exchanges I/O data,
diagnostics and parameter data with its assigned slaves.
Application
If nothing else is stated, the term "application" refers to the application of the
Master module.
ASPC2
Bus controller ASIC
C
Counterpart
The remote Master.
CSI
Crossed Status Information
F
FDL-layer
Lower layer of a PROFIBUS communication stack (Layer 2 of the OSI model).
H
Hot Standby (HSBY)
Refers to a redundant system with one Primary PLC and one Standby PLC
where the Standby PLC is ready to take over if the Primary PLC fails.
P
Passive Master
A passive Master is controlled by the Standby PLC and is ready to take over the
communication with the slaves if the active Master fails.
PCB (ProSoft Configuration Builder)
Software configuration tool for the Master module and PROFIBUS network.
R
RTOS
Real Time Operating System