Measurement Computing Micro 488/EX rev.2.1 - Manual (Page 84)

Section 5 Command Descriptions
5.14
message is sent, the internal status, as read by the STATUS 1
command, is cleared. This event is tested after the IDLE event. If
IDLE
is ARMed, the CHANGE event will only be reported when an
un-addressed to an addressed transition occurs.
ERROR The event message 'ERROR' is returned to the serial host when the
Micro488/EX detects an error condition. The error condition may be
an un-recognized command from the serial host, an invalid
parameter or a bus error. Refer to Appendix B for a listing of the
error conditions which can be detected and reported by the
Micro488/EX. This event is level sensitive. When the event message
is sent, the error status, as read by any of the STATUS commands,
must be read prior to ARMing this event again.
Once a condition is ARMed it remains ARMed until it is DISARMed, the event
specified has occurred or until the Micro488/EX is reset.
The ARM and ON DOMACRO commands are mutually exclusive. The
last command issued takes precedence.
SYNTAX ARM [;] [event[event…]]
or
AR
[;] [event[event…]]
where event… may include…
Event
Abbr Form
SRQ SRQ
PERIPHERAL PE
CONTROLLER CO
TRIGGER TR
CLEAR CL
TALK T
LISTEN L
IDLE I
CHANGE CH
ERROR ER
If no event is specified, ARM SRQ is assumed for upward
compatibility with other IOtech products.