User`s guide

272 53220A/53230A User’s Guide
8 Instrument Status
Standard Event Register
The Standard Event Register monitors programming conditions including:
• operation complete
• query errors
• device errors
• execution errors
• command execution errors
• power-on state
Reading the Standard Event Register
The Standard Event Register is read with the command:
*ESR?
Reading the register does not clear the bits. The bits are cleared by sending
*CLS.
Enabling the Standard Event Register
The Standard Event Enable register specifies which bits in the Standard Event
Status register can generate a summary bit which is subsequently used to
generate a service request.
Bits within the standard event register are enabled with the command:
*ESE <enable>
*ESE? (query form)
- enable: decimal value corresponding to the binary-weighted sum of the bits
in the register. For example, to enable the bit monitoring command syntax
errors: *ESE 32.
*ESE? returns the weighted-sum of all enabled bits.