Assigning Io-Device Names; After The Configuration Is Stored To The Io-Controller - GE VersaMax GFK-2721A Manual

3

Assigning IO-Device Names

After the PROFINET Scanner and other IO-Devices on the LAN have been entered into the
configuration, a Discovery and Configuration Protocol (DCP) tool must be used to assign a
name to each IO-Device. The Name of each device on the LAN must match the configuration.
This step is required before downloading the configuration from the PROFINET IO-Controller, or
the PROFINET IO-Controller will be unable to connect to the devices and deliver their
configuration.
The DCP tool must be connected to PROFINET IO LAN, either through the PROFINET
IO-Controller or directly to the LAN depending on whether it operates through the IO-Controller
or directly to IO-Devices.

After the Configuration is Stored to the IO-Controller

For complete instructions, refer to the documentation for the IO-Controller and the PROFINET
IO configuration tool.
After successfully processing and applying its configuration data, the IO-Controller transfers the
configuration for remote IO-Devices over the PROFINET network.
PROFINET delivers IO-Device configurations when the IO-Controller establishes an Application
Relationship (AR) with the IO-Device. If all Application Relationships (ARs) are lost, the
IO-Device (such as a VersaMax PROFINET Scanner) does not change the configuration of any
of its IO sub-modules. Each sub-module retains the most recent configuration received since it
was last powered up or restarted. If a sub-module has not been configured since powerup or
restart, it remains in its hardware default condition. When the AR(s) are re-established and a
configuration is sent to the IO-Device, and the configuration of a sub-module has changed, the
IO-Device applies the new configuration.

If a PROFINET Scanner is powered up and its modules are at hardware defaults, when it
receives a configuration for the first time, any new defaults that are different from hardware
defaults are applied until the first output data arrives.

If a PROFINET Scanner is powered up and the connection is then lost after receiving a
configuration, configuration defaults are applied when the connection is lost. On a
subsequent connection, if the same configuration is sent, outputs remain at the configuration
defaults until the first output data arrives. If a different configuration is sent, output defaults
transition to the new defaults until the first output data arrives.
3-10
VersaMax PROFINET Scanner Manual – December 2013
GFK-2721A