Kikusui KHA3000, Руководство по эксплуатации, Страница: 337 / 392

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KHA3000
337
Rem
ote Control
Status Registers and Status Report Function
The IEEE 488.2 register and SCPI register are used for status reports.
Each SCPI status register has the following subregisters: CONDition register, EVENt register,
ENABle register, PTRansition filter and NTRansition filter.
The figure on page 338 shows the SCPI status register structure.
“ + ” indicates the logical
sum of register bits.
The tables on pages 339 to 343 provide a summary of bit numbers, bit weights and bit
meanings.
CONDition register
The bits of the CONDition register are automatically set to indicate the current status of this
product. Reading this register does not affect the register data.
EVENt register
The bits of the EVENt register are automatically set according to the changes in the
CONDition register. The rule varies depending on the positive transition or negative transition
registers (PTRansition and NTRansition). Reading the EVENt register clears the register
data.
ENABle register
The ENABle register enables reports to the summary bit and status bit of event bits.
Transition filters
The PTRansition (positive transition) filter can be used to report an event when the condition
has changed from false to true.
The NTRansition (negative transition) filter can be used to report an event when the state has
changed from true to false.
If both positive and negative filters are set to true, an event can be reported every time the
status changes.
If both filters are released, event reporting is disabled.