Hioki SM7860 Series, Instruction Manual

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36
Listener Specification Precautions
Command Description Format
∗
ESE?
Standard event status enable register query
The contents of responses are the same as the settings.
[Format]
[Response]
∗
ESE?
d1: NR1
format
∗
ESR?
Standard event status register query
d1 (0 to 255)
[Format]
[Response]
∗ ESR?
d1: NR1
format
∗
OPC
Sets the standard event status register’s OPC bit after all ongoing
operations have completed.
This command is used to detect the completion of commands that involve
time-consuming processing.
[Format] ∗ OPC
∗
OPC?
Returns the value “1” when all ongoing operations have completed.
d1: 1
[Format]
[Response]
∗
OPC?
d1: NR1
format
CNF
Operating environment setting
d1 (Interlock control enable/disable: 0 to 1)
0: CONNECT (Enables interlock)
1: CUTOFF (Disables interlock) Default
[Format] CNF d1
d1: NR1
format
CNF?
Operating environment query
The contents of responses are the same as the settings.
[Format]
[Response]
CNF?
d1
KLC
Key lock setting
d1 (0 to 1)
0: Key lock off
1: Key lock on
[Format] KLC d1
d1: NR1
format
KLC?
Key lock query
d1 (0 to 1)
The contents of responses are the same as the settings.
[Format]
[Response]
KLC?
d1: NR1
format
3.7 Listener Specification Precautions
Input buffer size
Multiple command messages can be transferred at once by joining them with message separators. Since
the device provides an 128-byte input buffer, the device is unable to receive message strings in excess
of 127 characters in length. In this case, the entire command will be ignored (discarded), and the Error
Register’s MLE (Message Length Error) bit will be set.
Reading from the output buffer
The output buffer uses a FIFO design, with older data being read first. Consequently, the read value may
differ from the expected value under certain circumstances, for example if no response is acquired after
issuing a query. Additionally, the output buffer is 511 bytes in size. If data in excess of 511 bytes is written
to the buffer, it will be discarded, and the Error Register’s QYE (Query Error) bit will be set.