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3-12 Agilent 4155C/4156C SCPI Command Reference, Edition 1

Status Reporting Structure

Questionable Status Register

This register consists of CONDITION, TRANSITION FILTER, EVENT, and event

enable (MASK) registers.

• You enable the desired bits of the EVENT register by using the MASK register.

1 enables, 0 masks the corresponding bit of EVENT register. The MASK

• The TRANSITION FILTER register consists of positive and negative transition

filters.

If a bit in the positive transition filter is set to 1, then a 0 to 1 transition in the

corresponding bit of the CONDITION register causes a 1 to be written in the

corresponding EVENT register bit. The positive transition filter is set by the

:STATus:QUEStionable:PTRansition command.

If a bit in the negative transition filter is set to 1, then a 1 to 0 transition in the

corresponding bit of the CONDITION register causes a 1 to be written in the

corresponding EVENT register bit. The negative transition filter is set by the

:STATus:QUEStionable:NTRansition command.

See “STATus Subsystem” in Chapter 5 for details about these commands.

Figure 3-7 Questionable Status Register

This is a standard SCPI register, but non-IEEE488.2.

Agilent Technologies 4155C Command Reference

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