HP 53150A Series Programming Manual page 158

Chapter 4 Command Reference
Common Commands
*TRG
(Trigger Command)
*TRG
COMMAND
This command is the device-specific analog of the IEEE 488.1 Group
Execute Trigger (GET) interface message (page 4-7), and has exactly the
same effect.
The *TRG command performs the action defined by the *DDT command
(page 4-46).
None
RELATED
FRONT-PANEL
KEYS
4-58 Programming Guide