RIGOL DP832A - Manual (Page 19)

Chapter 1 Programming Overview RIGOL
DP800 Programming Guide 1-9
Questionable Status Register
Questionable Status Register of Multi-channel Models
The SCPI status system of the multi-channel models is as shown in Figure 1-2. Wherein, the channel
questionable status register indicates in which channel questionable event occurs. While for each specific
logic output, the channel questionable status SUMMARY register is a pseudo-questionable status register.
The questionable status register provides information about the questionable status of the power supply.
Bit4 (TEMPerature) reports the over-temperature state; bit11 (FAN) reports the fan failure state and bit13
(INSTrument summary) summaries the questionable output state of any of the three output channels.
You can send the :STATus:QUEStionable[:EVENt]? command to read the register. To use bit13, you must
first enable the register the information of which you want to summarize using bit13. Send
the :STATus:QUEStionable:INSTrument:ENABle command to enable the channel questionable status
register; then send the :STATus:QUEStionable:INSTrument:ISUMmary[]:ENABle command to enable
the corresponding channel questionable status SUMMARY register. The definitions of the bits in the
questionable status register of the multi-channel models and the decimal values corresponding to their
binary weights are as shown in Table 1-1.
Table 1-1 Definitions of the bits in the questionable status register of the multi-channel models and the
decimal values corresponding to their binary weights
Bit Decimal Value Definition
0-3 Not used 0 Always be 0.
4 TEMPerature 16 Over-temperature.
5-10 Not used 0 Always be 0.
11 FAN 2048 Fan failure.
12 Not used 0 Always be 0.
13 INSTrument summary 8192
Summary information of the channel
questionable status register and channel
questionable status SUMMARY register set.
14-15 Not used 0 Always be 0.
Channel Questionable Status Register
The channel questionable status register provides the questionable status information of all the three
channels. Bit1 (INST1 event summary), bit2 (INST2 event summary) and bit3 (INST3 event summary)
report the information about the questionable states of CH1, CH2 and CH3 respectively. You can send
the :STATus:QUEStionable:INSTrument[:EVENt]? command to read the register. To use the channel
questionable status register, you must enable the channel questionable status SUMMARY register.
You can send the :STATus:QUEStionable:INSTrument:ISUMmary[]:ENABle command to enable the
corresponding channel questionable status SUMMARY register. The definitions of the bits in the channel
questionable status register and the decimal values corresponding to their binary weights are as shown in
Table 1-2.