Measurement Computing Micro 488/EX rev.2.1 - Manual (Page 107)

Section 5 Command Descriptions
5.37
HELLO
The HELLO command is used to verify communication with the Micro488/EX,
and to read the software revision number. When the command is sent, the
Micro488/EX returns a string similar to the following:
Micro488/EX Revision N.N Copyright (C) 1988 IOtech Inc.
where N.N is the revision and release number of the firmware.
SYNTAX HELLO
or
HE
RESPONSE Micro488/EX Revision N.N Copyright (C) 1988 IOtech Inc.
N.N is the revision and release number of the firmware.
MODE Any
BUS STATES None
EXAMPLE PRINT#1,"HELLO" Get the HELLO response
INPUT#1,A$
PRINT A$
and display it.