8845A/8846A
Programmers Manual
If any bit in the SRE is set to 1, the RQS bit (bit 6) in the Status Byte Register is enabled,
meaning a service request can be generated when the appropriate bits in STB become 1.
Use the *SRE? query (see Table 10) to read the SRE Register. The Meter returns a
binary-weighted integer that represents the enabled bits in the register. (The value of bit
6 will always be zero.) Convert the returned value to binary to determine the status of
register bits.
EXAMPLE
*SRE?
Supported SCPI Commands
This section explains the SCPI (Standard Commands for Programmable Instruments)
commands available to program the Meter. This section includes the following
information:
• A list of the supported SCPI Commands
• A discussion of how to use the command set
• A detailed description of each command in the set
• Error handling for the 8845A/8846A
Throughout this document, the following conventions are used for SCPI
command syntax. Square brackets ( [ ] ) indicate optional keywords or
parameters. Braces ( { } ) enclose parameters within a command string.
Triangle brackets ( < > ) indicate that you must substitute a value for the
enclosed parameter.
SCPI Command Summary
Tables 7 through 16 summarize the SCPI commands implemented in the 8845A and
8846A Digital Multimeters.
CALibration? [{on|off}]
CALibration
:COUNt?
:RECord
:SECure
:CODE <new code>
:STATe {off|on}, <code>
:STATe?
:STRing <quoted string>
:STRing?
:DATE <date>
:DATE?
:VALue <value>
:VALue?
:STEP <step #>[,Reference]
:STEP?
28
Reads the value of the SRE Register. Assume "32" is returned.
Converting 32 to the binary 00100000 indicates that bit 5 in the SRE
is set to 1.
Table 8. CALibration Command Summary
Command
EXPLANATION
Note
Description
Perform a calibration
Path to the calibration function
Retrieves number of times Meter has been calibrated
Records calibration values
Path to calibration security function
Change security code
Unsecure / secure calibration mode
Retrieves state of security mode
Record calibration information
Retrieves calibration information
Set the calibration date
Retrieve the calibration date
Specify calibration signal value
Retrieves calibration signal value
Set the calibration step and reference
Retrieve the calibration step