Peripheral Devices
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8.12.3.3 ProfiNet IO
The Anybus-CC PROFINET IO communication module provides instant PROFINET Real Time
connectivity via the host interface and supports the following features:
ï‚· ProfiNet IO communication, up to 100Mbps full duplex
ï‚· Up to 256 bytes of Real Time I/O
ï‚· Up to 8192 bytes of acyclic data such as cycle data, trace etc.
ï‚· Generic GSD-file.
Use Name to specify the name of the device. This name should
be referred to when you create a reporter for the fieldbus using
the New reporter form.
Fieldbus Type should be set to ProfiNet IO.
Specify with IP address the address the AnyBus-CC module
initially should have on the network. Also specify the Subnet
mask and the IP address of an optional Gateway. These data can
be changed by the ProfiNet IO Master when connected.
Alignment defines the size (in bytes) of the individual input and
output modules that are used when the I/O area is configured on
the ProfiNet master. The size of the used modules must be equal
to the value of Alignment. Since max 64 modules can be used
Alignment also controls the maximum size of data that can be
transferred as cyclic IO data, see table below.
See chapter: Fieldbus Interface for a description on PLC bytes
In, PLC bytes Out, Data bytes In, and Data bytes Out.
The parameter Fast bytes In defines the size (in bytes) of the
input data that is transferred as cyclic, or real time, IO data on the
ProfiNet IO network. Max value is PLC bytes In + Data bytes In.
Leaving the parameter "blank" will make all input data
transfererred as cyclic IO data.
Fast bytes Out defines the size of the output data that is
transferred as cyclic IO data on the ProfiNet IO network. Max
value is PLC bytes Out + Data bytes Out. Leaving the parameter
“blank" will make all output data transfererred as cyclic IO data.
The "fast" areas always start at offset zero (0) of the respective
input or output area. The remaining part of the areas are
transferred as acyclic data on the ProfiNet IO network.
The input as well as the output area of the Profinet IO module is divided in data blocks. The maximum size
of each block is 64 bytes. For example, if 600 bytes output is configured it will be available as ten blocks,
the first nine contains 64 * 9 = 576 bytes and the tenth 24 bytes.
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