Common Commands 12-15
Figure 12-4
Status byte register
*TRG – Trigger Send bus trigger to 2182
Description
Use the *TRG command to issue a GPIB trigger to the Model 2182. It has the same effect as
a group execute trigger (GET).
Use the *TRG command as an event to control operation. The Model 2182 reacts to this
trigger if BUS is the programmed control source. The control source is programmed from the
TRIGger subsystem (see Section 14).
*TST?– Self-Test Query Run self test and read result
Description
Use this query command to perform a checksum test on ROM. The command places the
coded result (0 or 1) in the Output Queue. When the Model 2182 is addressed to talk, the coded
result is sent from the Output Queue to the computer.
A returned value of zero (0) indicates that the test passed, and a value of one (1) indicates that
the test failed.
B7 B6 B5
B4 B3
B2 B1
B0
(2 )
4
(2 )
5
1632
0/10/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Event Bit Set
0 = Event Bit Cleared
Events : OSB = Operation Summary Bit
MSS = Master Summary Status
RQS = Request Service
ESB = Event Summary Bit
MAV = Message Available
QSB = Questionable Summary Bit
EAV = Error Available
MSB = Measurement Summary Bit
OSB
MSS,
RQS
ESB QSBMAV EAV MSB
(2 )
6
64
(2 )
7
128
(2 )
3
8
(2 )
2
4
(2 )
0
1
0/1 0/10/10/1 0/1