HP 8508A Operating & Service Manual page 72

Operation
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Standard Event Status Enable *ESE <nrf>
Sets the Standard Event Register mask conditions.
The query option returns the currently selected conditions. Range 0 through 255, using encoding as in Table 3-2.
Standard Event Status Register *ESR?
Returns and Clears the current value of the Standard Event Status Register.
Status Byte Query *STB?
| Returns the current value of the Status Byte, with Master Summary Status (MSS) as bit 6. The Byte consists of bits
which summarise each Status Reporting Structure. Bits are cleared by clearing the related structure.
Status Control <=HP1B=> STATus
Operation Status. sOPERation
Condition Register ~ : sCOND ition?
Positive Transition Filter :PTRansition <nrf>
Negative Transition Filter sNTRansition <nrf>
Event Register sEVENt?
Enable Mask _ ENABLE <nrf>
The status command controls the setup and operation of the condition and event registers. The registers are set by
positive or negative transitions of the appropriate condition, enabled by transition filters.
EVENt? and CONDition? return the current values of the corresponding egies,
ENABle selects which events latched using the Positive TRansition and Negative TRansition filters, are reported in
the Status Byte summary bit 7.
The query option of ENABle returns 0 through 255, using encoding as in Table 3-2.
The query options of PTRansition and NTRansition return the current transition masks.
System system
Error Register sERRor? NUMeric|STRing
Key sKEY <orf>
Format sFORMat ASCii|FP64
The system command covers miscellaneous housekeeping and global activities in the Vector Voltmeter.
SYSTem:ERRor ? returns an error code describing any error that occurs. Errors are returned as either numeric
_ responses or as a string describing the error. By default a string is returned, Full details of the error codes appear in
the Troubleshooting section of this Manual.
SYSTem:KEY allows direct programming of the front panel key functions to simulate key presses. Each key is
simulated by sending its keycode given in Table 3-3.
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