System information

General Reference Guide IO Servers Configuration
RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 126
5.12.2.2 Topic configuration
Figure 98: Topic configuration
Three (3) topics can be used for the IO Server. These topics are used to give a common property to a group of MPI/ISOTCP Tags like:
• Enable/Disable
• Global Device Address
• Polling Rate
Baud Rate
Speed of the MPI port.
Available speeds are:
• disable
• 9.6 kBauds
• 19.2 kBauds
• 45.45 kBauds
• 93.75 kBauds
• 187.5 kBauds
• 1.5 MBauds
• 3 MBauds (only for 2005CD-MPI or 4005CD-MPI)
• 6 MBauds (only for 2005CD-MPI or 4005CD-MPI)
• 12 MBauds (only for 2005CD-MPI or 4005CD-MPI)
Reply Timeout The maximum time the eWON will wait for a valid MPI message response
MPI Address The device address of the eWON on the MPI link (0..126, default is 0)
MPI Highest Station Address
The highest station address polled by eWON. Select between 15, 31, 63 or
127.
Topic configuration item Description
Topic enabled Enables or disables polling of all the Tags in the topic.
Global Device Address
See below for the Device Address Syntax. If an address is specified here, it will
replace (overload) the address-defined Tag by Tag.
Poll rate
Defines the refresh rate of the Tag name. In a complex application, we can
imagine that some Tag names must be refreshed every second - typically for
digital input - and other every minute - typically: temperature-.
Figure 97: MPI/Profibus settings