Chroma 63200A Series, Инструкция по эксплуатации и программированию

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Remote Operation
5-5
Standard Event Status 5.2.5
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All programming errors that have occurred will set one or more error bits in the Standard
Event Status register. Table 5-3 describes the standard events that apply to the
electronic load.
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Reading the Standard Event Status register will reset it to zero.
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The Standard Event Enable register can be programmed to specify the standard event
bit that is logically ORed to become Bit 5 (ESB bit) in the Status Byte register.
Table 5-3 Bit Description of Standard Event Status
Mnemonic Bit Value Meaning
OPC
0 1 Operation Complete. This event bit generated is responding to
the *OPC command. It indicates that the device has completed
all of the selected pending operations.
QYE 2 4 Query Error . The output queue was read when no data were
present or the data in the queue were lost.
DDE
3 8 Device Dependent Error . Memory was lost, or self-test failed.
EXE
4 16 Execution Error . A command parameter was out of the legal
range or inconsistent with the electronic load’s operation, or the
command could not be executed due to some operating
conditions.
CME
5 32 Command Error . A syntax or semantic error has occurred, or the
electronic load has received a <GET> message from program.
Status Byte Register 5.2.6
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The Status Byte register summarizes all of the status events for all status registers.
Table 5-4 describes the status events that are applied to the electronic load.
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The Status Byte register can be read with a serial of pull or *STB? query.
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The RQS bit is the only bit that is automatically cleared after a serial of pull.
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When the Status Byte register is read with a *STB? query, Bit 6 of the Status Byte
register will contain the MSS bit. The MSS bit indicates that the load has at least one
reason for requesting service. *STB? does not affect the status byte.
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The Status Byte register is cleared by *CLS command.
Table 5-4 Bit Description of Status Byte
Mnemonic Bit Value Meaning
CSUM
2 4 Channel Summary . It indicates if an enabled channel event has
occurred. It is affected by Channel Condition, Channel Event and
Channel Summary Event registers.
QUES
3 8 Questionable . It indicates if an enabled questionable event has
occurred.
MAV
4 16 Message Available. It indicates if the Output Queue contains
data.
ESB 5 32 Event Status Bit . It indicates if an enabled standard event has
occurred.
RQS/MSS
6 64 Request Service/Master Summary Status . During a serial of pull,
RQS is returned and cleared. For a *STB? query, MSS is
returned without being cleared.