6.4.1 Interface Commands
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6.4.1 Interface
Commands
This section lists the interface commands in alphabetical order.
Interface commands key
Begins common interface command
?
Required to identify queries
s[n]
String of alphanumeric characters with length “n.” Send these strings
using surrounding quotes. Quotes enable characters such as commas
and spaces to be used without the instrument interpreting them as
delimiters.
nn…
String of number characters that may include a decimal point.
dd
Dotted decimal format, common with IP addresses. Always contains 4
dot separated 3-digit decimal numbers, such as 192.168.000.012.
[term]
Terminator characters
<…>
Indicates a parameter field, many are command specific.
<state>
Parameter field with only On/Off or Enable/Disable states.
<value>
Floating point values have varying resolution depending on the type of
command or query issued.
CLS
Clear Interface Command
Input
CLS[term]
Remarks
Clears the bits in the Status Byte Register, Standard Event Status Register, and Opera-
tion Event Register, and terminates all pending operations. Clears the interface, but
not the controller. The related controller command is
RST.
ESE
Event Status Enable Register Command
Input
ESE <bit weighting>[term]
Format
nnn
Remarks
Each bit is assigned a bit weighting and represents the enable/disable mask of the
corresponding event flag bit in the Standard Event Status Register. To enable an event
flag bit, send the command
ESE with the sum of the bit weighting for each desired
bit. Refer to section 6.2.5 for a list of event flags.
Example
To enable event flags 0, 4, and 7, send the command
ESE 145[term]. 145 is the sum
of the bit weighting for each bit.
Bit
Bit Weighting
Event Name
0
1
OPC
2
4
QXE
4
16
EXE
5
32
CME
7
128
PON
Total:
181
ESE?
Event Status Enable Register Query
Input
ESE?[term]
Returned
<bit weighting>[term]
Format
nnn (refer to section 6.2.5 for a list of event flags)
TABLE 6-7
