Lenze 2130IB User Manual
Page 88
L
86
LSB
Least significant bit
Master
Bus participant with independent sending authority. Masters
are hosts, like PLCs or PCs.
Mixed operation
Operating mode, when there are PROFIBUS-FMS and DP
masters
Mixed device
Device which incorporates functions according to PROFIBUS-
FMS and PROFIBUS-DP. Lenze controllers are mixed devices
on PROFIBUS or so-called Combislaves.
MSAC
Communication relation between master and slave, acyclic
MSB
Most significant bit
OFC
Optical fibre cable
User data
For PROFIBUS DP: data which are exchanged in cycles
between control and controller
PO data
Process output data
POWx
Process output word of PROFIBUS, viewed from the master
(host); i.e. data from the master to the drive. "x" means the
word address (starting with 1).
PC
Personal computer
PCD
see process data
PDU
Process Data Unit. User data length of a PROFIBUS telegram
PI data
Process input data
PIWx
Process input word of PROFIBUS, viewed from the master
(host); i.e. data from the drive to the master. "x" means the
word address (starting with 1).
PLC
Programmable logic controller such as Siemens SIMATIC S5
PROFIBUS
Process Field Bus
Communication standard DIN19245, consisting of part 1, part
2, and part 3
PNO
PROFIBUS-Nutzerorganisation e.V.
Group for the promotion of PROFIBUS.
PROFIBUS DP
Communication standard to DIN 19245
part 1 and part 3 (draft)
DP means "decentral peripherial units"
PROFIBUS-FMS
Communication standard to DIN 19245
part 1 and part 2 (FMS protocol)
Profile
The word profile is taken from the communication standard
PROFIBUS (DIN 19245) and describes supplementary or
restrictive regulations which are valid within industries or
device groups.
The DRIVECOM User Group has standardized some
important controller functions in the DRIVECOM profile 21.
Using the 2130 interface module, the Lenze controllers
support the DRIVECOM profile.
Process data
For example set-values and actual values of controllers, which
must be transmitted in a very short time. These are small
amounts of data (e.g. two words with DRIVECOM and Lenze),
which are transmitted cyclically. For PROFIBUS, these data
are transmitted in the logic process data channel.