PSW Series User Manual 
62 
Parameter 
<NR1> 
0~255 
Return parameter  <NR1> 
Returns the bit sum of the Service Request 
Enable register.  
*STB 
Query
 
Description 
Queries the bit sum of the Status Byte register with 
MSS (Master summary Status) bit replacing the 
RQS bit (bit 6). 
Query Syntax  *STB? 
Return parameter  <NR1> 
Returns the bit sum of the Status Byte register 
with the MSS bit (bit 6). 
*TRG 
Set
 
Description 
The *TRG command is able to generate a “get” 
(Group Execute Trigger). If the PSW cannot accept 
a trigger at the time of the command, an error 
message is generated (-211, “Trigger ignored”). 
Syntax *TRG 
*TST 
Query
 
Description 
Executes a self test. 
Query Syntax  *TST? 
Return parameter  0 
Returns “0” if there are no errors. 
  <NR1> 
Returns an error code <NR1> if there is an 
error. 
*WAI 
Set
 
Description 
Prevents any other commands or queries from 
being executed until all outstanding commands 
have completed. 
Syntax *WAI