DP
FDL
FMS
S7
ISO/TCP
DP class 2
PROFInet
PROFInet IO
SNMP
Scan cycle
time
Here, you make the settings to control
updating by the OPC Server.
The scan cycle time decides how often
the OPC server updates the values the
OPC items.
x x x x x x x x x
Access
protection
You can specify the access rights to
individual variables or variable groups for
each specific protocol. You can, for
example, prevent variables calculated
internally by the controller from being
overwritten.
As default, no access protection is
activated.
x x x x x x x x x
VFD VFD (Virtual Field Device) is the neutral
description of a device used in FMS.
Communication connections (FMS
connections) are then configured for the
VFDs in project engineering.
Here, you inform the OPC server of the
required VFDs. During project
engineering, you then assign the VFD to
the FMS connection. When accessing
variables in the PC application, you also
reference the VFD.
Extra function: creating the object
dictionary
Here, you can also create the object
dictionary (OD) belonging to a VFD. The
FMS variables (name and structure) are
defined in the object dictionary.
x
Connection
parameters
Here, you can make the settings required
for communication for services that do
not require specific connections to be
configured in project engineering.
x
Segmenta-
tion
Special settings for providing the data
buffers independent of specific
connections.
x
Use
symbols
x
Please note that the parameters are described in detail in the online help for each
individual dialog in NCM PC.
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