NORD Drivesystems BU0220 - Manual (Page 96)

PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE
96 Subject to technical amendments BU 0220 GB
9 Index
Keyword Index:
Address
ASIC
Assigned or specified designation of a DP slave.
Integrated circuit specific to the application
Baud rate The transmission rate for serial interfaces in bits per second
Binary code The designation for a code in which messages are communicated by "0"
and "1" signals.
Bit / Byte A bit (binary digit) is the smallest unit of information in the binary system.
A byte has 8 bits.
Broadcast In a network, all slave participants are addressed simultaneously by the
master.
DPM1 DP masters Class 1 implement the reference data traffic to the DP
slaves. The DPM1 is the central automation device for PROFIBUS DP.
DPM2 In addition to reference data traffic, Class 2 DP masters enable further
event-controlled functions such as control, commissioning and planning
tasks. The DPM2 is a planning or configuration device for PROFIBUS
DP.
DP Protocol for decentralised peripherals. With PROFIBUS DP this
describes the connection between the automation device and the bus
participants and is a standardised specification.
DP-V0 The central control unit (bus master)cyclically reads the incoming
information (e.g. actual values and status word) from the slaves and
writes the outgoing information (e.g. control word and setpoints) to the
slaves.
DP-V1 In addition to DP-V1 an acyclic data traffic between the central control
unit (bus master) and the connected slaves can be carried out. Transfer
of acyclic data is carried out in parallel to the cyclic data traffic between
the bus participants.
GSD Device master data
Electronic data sheet
ISO The International Standards Organisation is the international association
of
standardisation organisations and produces international standards in all
fields, with the exception of electricity and electronics .
I&M I&M stands for "Identification & Maintenance Functions" and is a
functionality of the PNO for all PROFIBUS devices which support acyclic
data traffic.
OSI layer model The Open Systems Interconnection Reference Model defines the
elements, structures and tasks necessary for data communication and
assigns these to the times for the communication process in seven
consecutive layers.
PROFIBUS DP PROFIBUS DP is a field bus variant for production automation. RS485
interfaces are used for transfer. The DP communication protocol differs
in its performance levels and various application profiles.