Siemens C79000-G8976-C156-07 quick start Setting the Trap Recipient based on the Example of an

10Example — SNMP Communication with OPC

10.4.3Setting the Trap Recipient based on the Example of an

OSM/ESM

Writing Values

You set the trap recipient of an OSM/ESM by assigning suitable values to two OPC items. The procedure described here is also an example of how to write values for OPC items using the OPC Scout.

Maximum of Ten Trap Recipients

To specify the trap recipients, you use the variables snTrapAddress and snTrapState. These variables each have ten instances (snTrapAddress1 to snTrapAddress10 and snTrapState1 to snTrapState10). On the OSM/ESM, you can therefore enter up to ten trap recipients. The device sends the trap frames to all registered recipients.

Writing Values for snTrapAddress and snTrapState

Activity

1.

In the left-hand window of the OPC Scout, the folder icon SNMP also contains a subfolder with the configured connection name. This folder contains a group with trap variables. If you use the profile supplied with the OSM, the name of this group is Privat-Common. If you use a newly created profile, the trap variables are in the group specified for it.

Click on the symbol of the group with the trap variables to display a list of these variables in the mid part of the window. The variable snTrapAddress contains the IP address of the trap recipient, snTrapState specifies whether or not the entry is activated (2) or deactivated (3):

2.

Select the snTrapAddress1 entry and select the menu command “Write value(s)” in the context-sensitive menu. The dialog box for synchronous and asynchronous writing appears.

Commissioning PC Stations - Manual and Quick Start	141
Release 5/2005

C79000-G8976-C156-07