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Adding a VersaMax PROFINET Scanner to a LAN
Use the PROFINET IO configuration tool to add a PNS module to the LAN. This process may
include importing the PNS module's GSDML files. If necessary for your application, change the
settings of the PNS module's configurable parameters listed below.
Configuring VersaMax PROFINET Scanner Parameters
The PROFINET IO Scanner has 32-bits of Status data and 32-bits of Control data. These
should be mapped to the IO-Controller's memory.
The IO-Controller determines the operation of inputs when the PNS is unable to provide them.
This typically happens when the PNS is not powered on, connected to the network, or there is a
network or configuration issue such that the IO-Controller cannot reach the PNS. The
IO-Controller may support defaulting inputs to fixed or configurable values or holding the last
known good state of inputs until connectivity is restored.
The PNS has two parameters on slot 0, subslot 1. The first parameter specifies the action the
PROFINET Scanner takes if a fatal error occurs. By default, the PROFINET Scanner module
LEDs blink a fault code if a fatal error occurs. This can be changed to cause the PROFINET
Scanner to restart instead. The second parameter specifies whether the PROFINET Scanner
enables SNMP service. By default, the service is disabled.
The network parameters of the PNS (IP Address, subnet mask, and gateway IP) should either
be configured to match the fixed parameters assigned to the PNS using a DCP Tool or to what
the IO-Controller should assign during the startup of communications between the PNS and
IO-Controller.
Note: If the network parameters assigned by the DCP tool are different from the configuration
in the IO-Controller and the IO-Controller is configured to assign them to devices, then
when the IO Controller assigns them as a temporary setting, the settings previously
stored from the DCP tool are lost. On a reset, the IO-Device is set to factory default
values (0.0.0.0/0.0.0.0/0.0.0.0).
The rate of data exchange is usually configured on the PNS in configuration tools. The PNS
supports update rates from 1ms to 512ms. The correct setting for each device can depend on
the dynamics of the equipment being controlled, the network loading on the PROFINET-IO LAN,
and the loading of the IO-Controller. It is not unexpected to have 'better' performance at 2ms,
4ms or greater periods than at 1ms depending on the overall system requirements, design, and
loading.
Media Redundancy Parameters
By default, the PROFINET Scanner is not set up for Media Redundancy. If the PROFINET
Scanner will be a Media Redundancy Client, select the module ports that will be used for Ring
Port 1, Ring Port 2 and the MRP Domain. The MRP Domain name is used to assign MRP
Clients to the media redundancy manager (MRM) for the network ring.
GFK-2721A
Chapter 3 Configuration
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3-3
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