What it shows
When you select a node in the tree view, this tab appears (except for SICOS drivers).
It includes four subtabs that allow you to send special telegrams to and from the selected node (PLC). Together, these telegrams are called extended services. They include system start, time synchronisation and keep alive telegrams.
Note: To use all the extended services, you must enable the mailbox and specify its location and size within the PLC where IGSS can post the special telegrams.
How it looks
The figure below shows the four tabs. Click on any of them for further information.