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GW Instek GDS-800 Series Programming Manual User Manual

Page 75

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GDS-806/810/820/840 Programming Manual

74

STATus

:QUEStionable

:OPERation

Figure 5-2: STATus hierarchy of SCPI defined register

:CONDition

:ENABle

EVENt?

:CONDition

:ENABle

EVENt?

:QUEue

[EVENt]?

Enable

Register

Event

Register

Condition

Register

To SBR

Figure 5-3: Status registers and related commands

The CONDition register is a read-only register which monitors the present state of

the instrument. The CONDition register updates in real time and the inputs are not

latched or buffered. When a condition monitored by the CONDition register

becomes true, the bit for that condition also becomes true (1). When the condition is

false, the bit is 0.

The read-only EVENt register latches any false-to-true change in condition. Once

the bit in the EVENt register is set, it is no longer affected by changes in the

corresponding bit of the CONDition register. The bit remains set until the controller

reads it. The command *CLS (Clear Status) clears the EVENt registers.