Chapter 3 Message Details
3-28
*ESR [Standard Event Status Register]
Function
This command queries the standard event status register value.
The standard event status register value is cleared after readout.
This value is the logical product of the 8 bits set by
*ESE
.
Syntax
*ESR?
Example of Use
The following example queries the value of the standard event status
register. The data is the value when an execution error or command error
occurs. There are a total of 48 values (bit 5 = 2
5
= 32 and bit 4 = 2
4
= 16)
as shown in Table 2.6.3-1.
*ESR?
>48
*IDN [Identification]
Function
This command queries product supplier name, model name, serial
number, and firmware.
Syntax
*IDN?
Example of Use
*IDN?
>ANRITSU,MS9740A,6200123456,1.00.00
*OPC [Operation Complete]
Function
If a
*OPC
command is received, the operation completion bit (bit 0) is set
to 1 once all active processes are completed.
If a
*OPC?
query is received, 1 is returned once all active processes are
complete.
The wait for operation completion set by
*OPC/*OPC?
is disabled after
the following events:
● Power ON
● Reception of DCL or SCL on the IEEE488.1 interface
● Reception of the
*CLS
command
● Reception of the
*RST
command
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