Siemens SIMATIC S5 Manual page 314

max_T
SDR
min_T
SDR
Mode selector
switch
Non-floating
Non-grounded
configuration
Offline
Online
Overvoltage
diverter
Parameterization
Parameterization
master
Parameterizing
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
A bus parameter defining the maximum protocol processing time of the
responding node (Station Delay Responder).
A bus parameter defining the minimum protocol processing time of the
responding node (Station Delay Responder).
The mode selector switch is on the IM 308-C master interface. It is a
three-position switch for the modes
On a non-floating I/O module the reference potentials of control and load
circuits are electrically connected.
Configuration without a galvanic connection to ground. In most instances an
RC element is used to divert interference currents.
When the PG is connected to the bus by the bus cable but is not active as
master, it is said to be offline on the bus.
When the PG is active as DP master on the bus, it is said to be online on the
bus.
Device for limiting overvoltages from remote strikes or induction effects (or
switching operations). The currents diverted by overvoltage diverters are
significantly lower than lightning pulses with regard to peak values, charges
and specific energy.
Parameterization is the defining of an ET 200 configuration with all specific
parameters in COM ET 200 Windows.
Each DP slave has one parameterization master. In the power-up procedure,
the parameterization master transfers the parameters to the DP slave, it has
read and write access to the DP slave and may modify the configuration of a
DP slave.
The FREEZE and SYNC control commands, for example, can be sent to the
DP slave only by the parameterization master.
The opposite of the parameterization master is the
The act of transferring the slave parameters from the DP master to the DP
slave.
RUN, STOP and OFF.
shared-input master.
Glossary
Glossary-7