After receiving an SNMP trap (a special signal sent by a device that supports the SNMP protocol. The signal notifies about the occurrence of critical events), channels described by the trap can be automatically created in Axxon PSIM.

Two conditions must be met in order for this to happen:

1. The Automatic creation of channels checkbox is set on the settings panel of the SNMP Wrapper object.
   
2. Connection with a device is established (see Connecting a device via the SNMP protocol).

If these conditions are met, the corresponding channels are created after receiving an SNMP trap.