Configuring the General Parameters for Global Data

At a Glance

The following parameters can be entered in the Global Data Configuration zone of the configuration screen:

group address
group name
distribution period
health time out
multicast filtering

Group Address

This zone is used to enter the multicast IP address (class D) for the group to which the station belongs. The value 239.255.255.255 is the default value.

Group Name

This field is used to fill in the group name associating a variable from the variable editor with a module.

Distribution Period

This zone is used to select the distribution period of the publication. The publication is synchronized with the PLC master task. The publication period can be configured from 1 scan to 50 scans.

Health Time Out

This zone is used to adjust the health "time-out" value.

An associated status bit (%IW zone) is linked to each Global Data item and is used to monitor whether the data has been published and received by the end of the time indicated in this window. If yes, the value is 1, otherwise the bit is set to 0.

Multicast Filtering

The multicast filtering drop down list allows you select the following:

None: disable both GMRP & IGMP

(Data will be sent to all end devices in the network.)
GMRP

Make sure your client, server and switches, and routers support and endable GMRP.
IGMP V1

Make sure your client, server and switches, and routers support and endable IGMP.

Note: The following modules support IGMP V1:

TSX ETY 4103/5103 V4.3 or later
TSX ETY PORT (TSX P57 1634/2634/3634): V4.3 or later
TSX P57 4634/5634/6634 V2.8 or later

This function is used to reduce data flow on large networks.